17, Mar 2026
Centre Approves 203 Integrated Ayush Hospitals and 383 Dispensaries Under National Ayush Mission
New Delhi, March 17: The Government of India has approved the establishment of 203 Integrated Ayush Hospitals (IAHs) and 383 new Ayush dispensaries across various states and Union Territories under the National Ayush Mission (NAM) to strengthen traditional healthcare infrastructure in the country.
Launched in 2014–15, the centrally sponsored scheme is being implemented through state and Union Territory governments with the aim of promoting and developing Ayush systems of medicine, including Ayurveda, Yoga, Naturopathy, Unani, Siddha, and Homoeopathy. The mission provides financial assistance for setting up 50-, 30-, and 10-bedded Integrated Ayush Hospitals, along with Ayush dispensaries based on proposals submitted by states through their State Annual Action Plans (SAAPs).
According to the Ministry of Ayush, the approvals have been granted to expand access to traditional healthcare services in different parts of the country. The projects are part of the Centre’s broader efforts to integrate Ayush systems into the public health framework and improve healthcare delivery, particularly in underserved regions.
Among the states, Rajasthan has received the highest number of approvals for Integrated Ayush Hospitals with 33 units, followed by Uttar Pradesh with 25, Maharashtra with 14, and Madhya Pradesh with 13 hospitals. Other states such as Kerala, Chhattisgarh, and Manipur have also been sanctioned multiple facilities to strengthen Ayush-based healthcare infrastructure.
Several northeastern states have also received approvals under the scheme, including Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, and Nagaland, reflecting the government’s focus on expanding traditional medicine services in the region. Union Territories such as Andaman & Nicobar Islands, Chandigarh, Lakshadweep, and Puducherry have also been included in the plan.
In addition to hospitals, 383 new Ayush dispensaries have been approved nationwide. Uttar Pradesh accounts for the largest share with 250 dispensaries, followed by Assam with 100 units. Other states including Jammu & Kashmir, Manipur, Meghalaya, Tamil Nadu, and Maharashtra have also been allotted dispensaries under the programme.
To support the implementation of these initiatives, the Centre has released ₹424.24 crore as grant-in-aid to states and Union Territories during the current financial year as part of the central share under the mission. The funds are intended for carrying out approved activities under the respective State Annual Action Plans.
The information was shared by **Prataprao Jadhav, Minister of State (Independent Charge) for the Ministry of Ayush, in a written reply to a question in the Lok Sabha on March 13, 2026.
The expansion of Ayush hospitals and dispensaries is expected to enhance access to traditional healthcare services and strengthen the integration of Ayush systems within India’s broader public health network.
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- By Neel Achary
17, Mar 2026
Kore.ai Launches Agent Management Platform to Bring Governance and Control to Enterprise AI
SAN FRANCISCO, CA — March 17, 2026 — Kore.ai, a provider of agentic applications and a market-leading enterprise AI platform, today announced the launch of its Agent Management Platform (AMP), a unified command center designed to govern, monitor, and manage AI agents and AI systems across the enterprise.
As organizations rapidly deploy AI and multi-agent systems, many are encountering “AI sprawl,” a phenomena analysts describe as dozens of AI initiatives across different teams, tools, and clouds without centralized visibility or governance. Gartner predicts that by 2028, enterprises will operate thousands of AI agents across various business functions, making centralized management, policy enforcement, and value measurement critical for the responsible adoption of AI.
The Kore.ai Agent Management Platform provides enterprises with a single operational layer to manage AI systems across frameworks, clouds, and development environments, including LangGraph, CrewAI, AutoGen, Google ADK, AWS AgentCore, Microsoft Foundry, Salesforce Agentforce, and proprietary systems. It consolidates AI observability, governance enforcement, performance monitoring, and value measurement, enabling organizations to move from fragmented AI experimentation to controlled, enterprise-scale deployment.
Two core capabilities distinguish Agent Management Platform from other emerging solutions. First, the platform provides a comprehensive evaluation studio that allows enterprises to test agent behavior, workflows, and outcomes before production deployment, helping teams reduce uncertainty and accelerate time to reliable deployment. Second, AMP is designed to operate across heterogeneous AI environments. While similar governance offerings from established players are typically limited to their own ecosystems and many startup solutions have limited connectivity with enterprise applications, Kore.ai’s agnostic architecture and deep integration capabilities enable enterprises to connect and govern AI systems built across multiple frameworks, tools, and platforms.
“AI agents are rapidly becoming the new software workforce inside enterprises,” said Prasanna Arikala, CTO and Head of Products at Kore.ai. “But without centralized governance, enterprises risk losing visibility and control over how AI operates across the organization. The Agent Management Platform introduces a new operational layer for enterprise AI, giving leaders the ability to manage AI agents with the same discipline, transparency, and accountability as any other critical business system.”
The new AMP platform integrates with AI agents built across leading frameworks and ecosystems, enabling organizations to manage heterogeneous AI environments through a unified control plane. Enterprises can now track AI performance and costs, enforce governance policies consistently, detect anomalies or drift, and align AI initiatives with measurable business outcomes.
“AI is quickly becoming core infrastructure for how enterprises operate,” said Raj Koneru, CEO and Founder of Kore.ai. “But scaling AI responsibly requires more than powerful models; it requires governance, visibility, and accountability. With the Agent Management Platform, we are helping enterprises turn AI from isolated experiments into a trusted, enterprise capability that delivers real business value.”
Designed to work across multi-agent environments and heterogeneous AI ecosystems, the Kore.ai Agent Management Platform provides organizations with a centralized foundation to govern AI adoption as it scales across the enterprise.
17, Mar 2026
Numeraire Future Trends Expands Partnerships with Three Contemporary Artists Using AI Authentication Technology
Abu Dhabi, March 17— Numeraire Future Trends, the Abu Dhabi–based CultureTech company pioneering AI-powered Digital Product Passports (DPPs) for art, luxury goods, and cultural assets, today announced that three contemporary talented female artists have partnered with the company to secure the identity and provenance of their works using its object-level fingerprinting technology.
Emerging artists Megan Baker and Colette LaVette, represented exclusively by Gillian Jason Gallery, will integrate Numeraire’s proprietary AI-based authentication technology into their paintings. The platform creates tamper-resistant digital identities for each artwork, enabling collectors, galleries, and institutions to verify authenticity and provenance throughout the artwork’s lifecycle.
Exploring Old Master influences through a contemporary lens, Megan Baker’s lyrical abstractions transform into dream-like landscapes. Taking moments of stillness within nature, the artist reflects on our contained state as human beings, while evoking a quiet sense of comfort in solitude.
Colette LaVette’s practice borrows attributes from Rococo aesthetic, characterised by elaborate and ornamental decorations, lightness, a delicate chromatic palette and a focus on the fantastical.
Millie Foster: “As emerging artists, Baker and LaVette are taking steps to both create and secure their legacy. Numeraire’s technology is an important step to support this endeavour.”
Caroline Bergeron (ARO)
Numeraire has also onboarded Caroline Bergeron, known as Aro, a Quebec based artist whose work is gaining increasing visibility through prominent exhibitions and cultural events in Canada and internationally. Her abstract contemporary practice merges emotional intensity with refined visual sophistication, resulting in powerful, immersive works that leave a lasting imprint. Through this collaboration, she further affirms her commitment to innovation, transparency, and the long-term protection and value of her collectors’ acquisitions. “Every artwork holds a story, an energy, and a moment in time. Ensuring its authenticity for generations to come is a responsibility I take seriously as an artist.”
17, Mar 2026
Hungarian Study Offers New Insights into the Causes of Smartphone Addiction
According to research from Semmelweis University, problematic smartphone use is not caused by personality alone, but by weak self-control and a strong fear of missing out on social events (FoMO). The study published in Acta Psychologica also highlights that excessive phone use not only causes psychological difficulties, but can also lead to long-term physical consequences: Poor posture may impair balance, slow reaction time, and make it harder to concentrate.
Researchers at Semmelweis University investigated how smartphone use relates to mental and physical health, as well as cognitive functions, among students aged 18 to 35. In the online questionnaires, participants reported whether they had ever missed a planned task because of their phone use, and whether their phone was on their mind even when they weren’t using it. Participants were also asked about their daily active smartphone use and the types of activities they used their phones for.
The participants’ personality traits and mental state were also examined. One questionnaire measured neuroticism, meaning a tendency to experience negative emotions such as anxiety, low mood, fear, and anger. Another assessed self-control, and a third measured FoMO, the fear of missing out on events and peers’ activities.
Based on usage patterns, the researchers identified three groups. “Purely social” users relied on their phones mainly to communicate with friends and acquaintances, build social connections, and for social purposes. “Moderately process-oriented” users spent less than four to five hours a day on their phones for social purposes, news, entertainment, and passive scrolling, but spent less than four to five hours a day on their devices. About one third of participants were classified as “strong process-oriented” users, spending four to five hours or more per day on their phones, mainly for content consumption rather than social communication.
“Our main finding is that personality alone—such as a high level of neuroticism—does not make someone addicted to their phone. People who are more prone to negative emotions like anxiety, depression, or stress do not automatically become addicted. What really matters is how well they can control their behavior, emotions, and impulses, and how strongly they fear missing out,” said Dr. Johanna Takács, senior research fellow at the Faculty of Health Sciences at Semmelweis University and lead researcher of the study.
The study shows that the main problem is not the amount of time spent on phones, but how they are used. Passive scrolling on social media—such as watching short videos or browsing feeds—constantly exposes the brain to fast stimuli. This overloads attention, reduces concentration, and can cause mental fatigue over time.
Cognitive tests showed that “strong process-oriented” users performed worse on attention and memory tasks than expected for their age. They also slept worse, felt a stronger need for constant new stimulation and had more difficulty controlling their impulses when they wanted to check or do something immediately.
The study found that the duration of phone use was mainly associated with physical effects.
“When people hold their phones at waist or chest level and look down at them, the head moves forward, creating a forward head posture, also known as ‘text neck.’ This puts extra strain on the neck and can cause pain or early wear of the neck joints.
The neck contains sensors that tell the brain how the head is positioned. If a forward head posture is maintained for long periods, these signals can change and lead to balance problems. These effects are not limited to phone use but can also influence everyday movements,” said Beáta Seregély, assistant lecturer and expert responsible for the physical measurements in the study.
The researchers stress that the goal is not to ban phones or punish young people for using them. Instead, the focus should be on helping them use their phones more consciously. Simple steps can help, such as limiting notifications—especially from social media and messaging apps—setting time limits for social media, avoiding phone use before bedtime, and promoting more physical activity and maintaining good posture.
For mental prevention, it is especially important to help young people develop better self-control and feel less afraid of missing out on social events. This can be supported through behavioral training and psychological help. When self-control increases and fear of missing out decreases, personality-related vulnerability is no longer a major risk, and even more sensitive, anxious, or stress-prone individuals are much less likely to become addicted to their phones.
17, Mar 2026
Dr. Venkatesh Devanur Elected President of World Neem Organisation at International Neem Summit 2026
Hyderabad, March 17: Dr. Venkatesh Devanur, a Hyderabad-based agri-biotech entrepreneur and scientist, has been elected President of the World Neem Organisation (WNO) at the recently concluded 3rd International Neem Summit – 2026 and the 4th Global Neem Trade Fair, held in Pune.
The summit and trade fair were organised by the World Neem Organisation (WNO) and brought together researchers, industry representatives, farmers, and neem enthusiasts from across India and several other countries.
The World Neem Organisation is an international non-profit body dedicated to promoting the neem tree and its benefits for agriculture, health, the environment, and industry. The organisation serves as a global platform for individuals and institutions working with neem to share knowledge, research, and resources while promoting the wider use of neem worldwide.
The key objectives of WNO include:
- Promoting neem cultivation and plantation globally
- Encouraging research on neem’s medicinal and agricultural benefits
- Supporting the production and commercialization of neem-based products
- Raising awareness about neem’s role in sustainable agriculture, healthcare, and environmental protection
Dr. Venkatesh Devanur has been actively involved in several agriculture-related organisations. He is the founding member and secretary of the BioAgri Inputs Producers Association (BIPA), one of the world’s oldest trade bodies in the bio-agriculture sector. Prior to his election as President, he served as Vice President of the World Neem Organisation.
He is also a Director in a joint venture with Koppert Biological Systems (Netherlands) and is widely recognised as a pioneer in India’s bio-pesticide and organic agriculture industry, leading companies that develop eco-friendly crop protection and soil health solutions.
The summit was attended by several distinguished guests, including Justice K. K. Tated, Chairman of the Animal Rights Commission, Government of Maharashtra, Dr. B. N. Vyas, President of WNO, along with leading scientists, industry representatives, and farmers.
During the conference, a White Paper on the Status of the Neem Industry was released. A documentary highlighting the importance of collecting and processing neem seeds and fruits was also launched to benefit neem seed and fruit suppliers, emphasizing the significance of proper collection and value addition within the neem supply chain.
The event witnessed participation from more than 150 delegates from India and overseas. Eminent scientists and experts presented research papers on the role of neem in agriculture, human health, cancer research, and other critical areas, creating opportunities for collaboration between academia and industry.
17, Mar 2026
Turquoise Health Announces $40 Million Series C to Become the Operating System for Healthcare Contracts and Payments
SAN DIEGO, CA —March 17– Turquoise Health (“Turquoise”), a multi-sided healthcare pricing and payment platform, today announced it has raised $40 million in Series C funding. The round was led by Oak HC/FT, with participation from existing investors including Andreessen Horowitz, Adams Street Partners, and Yosemite.
Healthcare’s financial infrastructure is broken in a way that costs the industry nearly $1 trillion in administrative spend annually. The core problem is structural, with the contracts underlying every payment decision stored in disparate systems, inconsistently interpreted, and effectively invisible to the parties bound by them. The result is a world where it’s difficult for anyone to translate those rates into accurate payment amounts. The current system results in both sides losing money due to denials and administrative overhead, or needing to maintain teams of analysts to manage complex reimbursement scenarios and reviews of documentation. This also leads to the poor experience that most patients have with medical bills and the financial infrastructure supporting care. By centralizing data, contract information, and clinical coverage rules, Turquoise addresses the industry’s pricing opacity and revenue leakage, transforming the cost of care from a source of conflict and confusion into a clear, actionable source of truth.
Turquoise’s platform creates a new way to price, contract and transact in healthcare. Clear Rates synthesizes machine-readable files, claims data, Medicare benchmarks and all other relevant pricing signals into a single, auditable rate for every payer-provider combination. Contracts leverages AI to tag every rate and provision across a customers’ contract portfolio, turning static documents into a dynamic operating system so teams can find contract details, compare performance and model negotiation scenarios in a few clicks. Together, they lay the foundation for a fundamentally different healthcare transaction, one where standardized pricing and aligned contracts dissolve administrative waste and improve the patient experience by making same-day, transparent transactions the norm. Woven across the platform is AskTQ, the AI-powered pricing and contracting layer that cuts weeks of manual research down to seconds.
“Our goal has always been to move the industry toward clear, accurate, and actionable healthcare pricing,” said Chris Severn, CEO and Co-Founder of Turquoise. “By evolving from a data vendor to a full workflow and transaction platform, we are building the infrastructure for transparent, real-time payments. This round allows us to ensure that this model becomes the industry standard.”
Turquoise has demonstrated significant market momentum, with 35% of monthly active users now leveraging multiple products on the platform. The company’s platform is now utilized by more than 280 customers, including 10 of the top 25 health systems, 4 of the 5 national payers, 9 of the top 10 pharmaceutical companies, and 6 of the top 10 insurance brokers. The new capital will be used to assist with additional go-to-market efforts, accelerate the buildout of the product roadmap, and increase headcount. Turquoise has grown its team to nearly 200 employees since its founding 5 years ago and looks to add more talented, motivated people to the team.
“Turquoise is uniquely positioned at the center of the healthcare economy, leveraging a data moat bolstered by their subject matter expertise, extensive library of over 65,000 contracts and best-in-class user interface,” said Vig Chandramouli, Partner at Oak HC/FT. “We have tracked Chris and the team since 2021 and are impressed by their ability to expand adoption simultaneously across providers, payers, employers, and life sciences. Their platform doesn’t just provide data; it embeds transparency directly into the negotiation and payment workflows of the industry’s largest stakeholders.”
17, Mar 2026
IHCL Announces a SeleQtions Hotel in Digha, West Bengal
Chandigarh, March 17: Indian Hotels Company (IHCL), India’s largest hospitality company, today announced the signing of a SeleQtions hotel in Digha, West Bengal. The upcoming property will be developed as a greenfield project.
Commenting on the development, Suma Venkatesh, Executive Vice President – Real Estate & Development, IHCL, said:
“Digha is one of Eastern India’s most frequented beach destinations, and its growing relevance in spiritual tourism is widening its visitor base beyond the traditional leisure segment. This combination of coastal and cultural appeal is strengthening demand throughout the year and enhancing the destination’s hospitality potential. The signing aligns with our strategy of expanding in emerging tourism hubs. We are delighted to continue our longstanding partnership with the Ambuja Neotia Group for this project.”
Giriraj Damani, Whole-Time Director, CEO and CFO – Ambuja Neotia Hospitality, added:
“We are pleased to collaborate with IHCL to bring the SeleQtions experience to Digha. This project will play an important role in elevating the region’s hospitality infrastructure.”
The 56-key IHCL SeleQtions Digha will feature an all-day dining restaurant and a bar, along with spacious meeting and event venues designed for social gatherings and corporate events. Recreational amenities at the hotel will include a swimming pool, fitness centre, and spa, offering guests a comprehensive hospitality experience.
Situated along the Bay of Bengal, Digha is known for its wide beaches, tranquil shoreline, and scenic beauty. The destination offers a range of attractions, including New Digha Beach, Old Digha Beach, Talsari Beach, Digha Science Centre, Marine Aquarium & Regional Centre, and Amarabati Park.
With the addition of this property, IHCL will have 17 hotels in West Bengal, including 9 under development, further strengthening its presence in the region.
17, Mar 2026
Pine Launches Message Gateway, Turns Everyday Messages Into AI-Powered Tasks
PALO ALTO, Calif. – March 17, 2026 – Pine, the trusted AI agent for consumers’ digital chores that delivers results, today announced Message Gateway, a new communication layer that allows users to interact with Pine’s AI assistant from anywhere, including messaging platforms, voice notes and phone calls, while Pine executes tasks in the background through AI agents.
By turning everyday messages into real-world actions, Message Gateway transforms Pine into an always-available assistant that operates across a user’s digital life. Message Gateway enables Pine to operate across time and channels, managing tasks that may run for minutes, hours or even weeks.
It transforms messaging from simple conversations into a control interface for AI agents that can perform real-world work.
“Most AI assistants today still live inside a single app,” said Pine CEO Stanley Wei. “But real life doesn’t happen inside one interface. With Message Gateway, Pine can meet users wherever they already communicate, whether that’s messaging, voice or mobile. Our goal is simple: You talk to Pine naturally, and Pine takes care of the work.”
Instead of having to open a specific application or interface to interact with an AI assistant, Message Gateway users simply send a message or speak naturally via channels like Telegram, WhatsApp, Slack or the Pine mobile app. Pine will understand the request, launch the appropriate AI agents and manage the task over time. The AI assistant tracks progress and keeps the user updated while tasks are completed.
Unlike most voice assistants designed for quick commands or chatbots built primarily to answer questions, Pine is designed to manage long-running tasks that require coordination, follow-up and execution across multiple systems. Instead of returning a single response, Pine can start tasks that unfold over time, interacting with services, making calls, researching information and keeping users informed as progress is made.
Key capabilities of Message Gateway include:
· Multi-channel access: Users can interact with Pine through messaging platforms such as Telegram, WhatsApp, Slack and the Pine mobile app.
· Voice and audio support: Voice notes and audio messages are automatically transcribed and processed, allowing users to speak naturally instead of typing.
· Persistent task management: Tasks can run asynchronously for minutes, hours or days, while Pine tracks progress and provides updates.
· Single assistant experience: Users interact with one assistant, while multiple AI agents work behind the scenes to complete tasks.
· Real-world execution: Pine can perform actions such as negotiating bills, making calls, booking appointments, researching information or generating documents.
· Context and memory: Pine remembers important details from conversations so users do not need to repeat themselves.
“What makes Pine different is that it doesn’t just answer questions; it actually handles things for you,” said a Pine user. “Being able to send a message and have Pine take care of a task in the background feels like having a real assistant.”
Message Gateway is part of the Pine AI assistant platform, a subscription-based service designed to help consumers delegate everyday digital tasks through natural conversation. Users can interact with Pine through messaging channels, voice or the Pine mobile app, while Pine manages the work through AI agents operating in the background.
Message Gateway represents a key step toward Pine’s broader vision of building an AI assistant that operates across a user’s entire digital life. Rather than requiring people to adopt another standalone app, Pine aims to create an AI operating layer for everyday tasks, where simple conversations become the interface for getting things done.
17, Mar 2026
Kumar Corp Unveils ‘Kumar Plumeria’ – A Premium Luxury Residential Development near KIADB Aerospace Park, Bengaluru
Bengaluru, March 17: Kumar Corp has announced the launch of its new residential project, Kumar Plumeria, located near the KIADB Aerospace Park in Bengaluru. The premium residential development is thoughtfully designed to blend contemporary architecture with expansive landscaped living spaces, offering residents a harmonious balance of open green environments, recreation, and refined urban comfort.
Each residence at Kumar Plumeria is designed to maximise natural light and ventilation, complemented by expansive balconies that enhance the sense of openness and comfort. The development comprises six residential towers (A to F), offering spacious 3.5 BHK, 3.5 BHK + Staff, and 4.5 BHK + Staff residences.
Project Highlights
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3.5 BHK residences: Saleable area ranging from 2,680 sq. ft. to 2,710 sq. ft.
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3.5 BHK + Staff residences: Saleable area ranging from 2,860 sq. ft. to 2,890 sq. ft.
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4.5 BHK + Staff residences: Approximately 3,070 sq. ft. saleable area
Kumar Plumeria is anchored by a comprehensive Landscape Master Plan that integrates open green spaces and community zones throughout the development. Key features include a grand entry and exit with a security cabin, clubhouse drop-off zone, and a Central Celebration Plaza equipped with a stage and seating area for events.
The project also features landscaped terraces, a swimming pool with a shaded lounge deck, yoga and meditation deck, children’s play area with an outdoor gym, mini soccer and box cricket court, basketball practice court, and an amphitheatre designed for community gatherings.
Residents will also have access to a wide range of indoor and outdoor amenities, including a badminton court, gymnasium, indoor games facilities, multi-sport courts, landscaped terraces, and dedicated wellness and children’s zones.
Each residence will include two car parking slots, with one slot equipped with a dedicated EV charging point, reinforcing the project’s focus on modern and sustainable living. Kumar Plumeria aims to set a new benchmark in boutique luxury living.
Commenting on the launch, Umang Badjatya, CEO, Kumar Corp, said:
“Kumar Plumeria reflects our commitment to creating thoughtfully designed, spacious homes in emerging growth corridors. With only 100 residences, the project offers exclusivity, privacy, and connectivity in equal measure. This development aligns with our long-term vision of delivering premium, low-density communities that prioritise space and sustainable urban growth. Our aim is to provide not just a home, but an elevated lifestyle experience that blends comfort, elegance, and community.”
17, Mar 2026
Sharper LEO navigation through outer-loop framework
Positioning, navigation, and timing services are now essential for autonomous systems, logistics, and mass-market electronics, yet conventional GNSS remains vulnerable in urban canyons, tunnels, and other obstructed environments. LEO constellations such as Starlink, OneWeb, and Iridium have drawn growing interest because their signals are strong, plentiful, and fast-moving, making them attractive as backup or complementary navigation sources. But unlike GNSS satellites, many LEO platforms do not provide transmission timestamps or pseudorange-style observables, leaving signal propagation time uncertain. Previous studies have focused heavily on orbit-related errors, while the role of propagation time in state estimation has received far less attention. Based on these challenges, deeper research into propagation-time-aware LEO positioning is needed.
In 2026, researchers from the Universitat Autònoma de Barcelonareported (DOI: 10.1186/s43020-026-00189-w) in Satellite Navigation a new outer-loop positioning framework for LEO Doppler observations that explicitly accounts for signal propagation time, demonstrating improved accuracy and stability in both simulations and real Iridium measurements.
The proposed method combines an outer loop and an inner loop to better reconstruct the true geometry of LEO signal transmission. In the outer loop, satellite states are updated with TLE+SGP4, predicted Doppler observations are generated, and residuals are estimated through weighted least squares. In the inner loop, intermediate quantities—especially signal propagation time—are iteratively refined. The framework also introduces a finite-difference Doppler observation model that reduces the influence of atmospheric delay and better links Doppler drift to receiver position, velocity, and clock states. Experiments showed that the algorithm improved three-dimensional position accuracy by more than 15% and velocity accuracy by more than 25%, while significantly improving clock-related error estimation. In measured Iridium observations, point-positioning error fell by 13.4% compared with an existing coarse-time approach, and solution stability also improved. The study further identified a practical convergence limit: when the initial position error reaches 200 km, the tolerable receiver clock error drops below 50 ms, underscoring the importance of good initialization in real deployments.
The findings suggest that propagation time is not merely a secondary correction in LEO navigation, but a central factor that shapes the quality of the final solution. By treating it explicitly rather than absorbing it into a rough coarse-time estimate, the researchers showed that Doppler-based positioning can become both more accurate and more robust. The work also provides a clearer understanding of how spatial and timing uncertainties interact, offering valuable guidance for future receiver design and algorithm development.
The broader implications are considerable. As LEO constellations continue to expand, propagation-time-aware positioning could help build resilient navigation services for GNSS-challenged or GNSS-denied environments. The approach may prove especially useful for low-cost devices, mobile platforms, and Internet-of-Things applications that cannot rely on high-end atomic timing hardware. While further validation under more diverse real-world conditions will still be needed, this study establishes a practical and theoretically grounded route toward more accurate, stable, and scalable LEO-based navigation services in the years ahead.
