NavIC performance over the service region: availability and solution quality

Dan, Sukabya; Santra, Atanu; Mahato, Somnath; Bose, Anindya

doi:10.1007/s12046-020-01375-5

Cited by 14 publications

(13 citation statements)

References 9 publications

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“…NavIC, the Indian regional indigenous navigation system provides extra advantages over the Indian region specifically from self-reliance in strategic applications. Operating from GEO and IGSO, the NavIC constellation provides satellite visibility from high elevation angles to counter the time and locationspecific GNSS visibility problem during some parts of the day towards seamless and enhanced accuracy positioning [68][69] . Standalone NavIC SPP provides <5 m position solution accuracy as obtained from GlB under stand-alone, open sky operation of the ISRO-developed IRNSS-GPS-SBAS (IGS) receiver [69][70] and in future, differential NavIC (dNavIC) operation is expected to enhance the solution capability of NavIC.…”

Section: Multi-gnss and The Indian Advantagementioning

confidence: 99%

“…Operating from GEO and IGSO, the NavIC constellation provides satellite visibility from high elevation angles to counter the time and locationspecific GNSS visibility problem during some parts of the day towards seamless and enhanced accuracy positioning [68][69] . Standalone NavIC SPP provides <5 m position solution accuracy as obtained from GlB under stand-alone, open sky operation of the ISRO-developed IRNSS-GPS-SBAS (IGS) receiver [69][70] and in future, differential NavIC (dNavIC) operation is expected to enhance the solution capability of NavIC. Similar to the DGPS base stations 71 , NavIC Range and Integrity monitoring stations and properly designed permanent NavIC Base stations may be established at suitable locations near the test ranges to the dNavIC operation.…”

Section: Multi-gnss and The Indian Advantagementioning

confidence: 99%

“…The other associated differentiator in the case of NavIC is the provision of the S-band signal. S-band signals provide better 2dimensional (2d) solution precision in comparison to the l band operation 69 and this would enhance the resilience of the navigation system against the threats of jamming and spoofing, an important attribute for strategic applications including the test-range requirements. The illegal, cheap, commercial GPS jammers and spoofers are found to operate over the l band; as of now, NavIC being the only system using S-band, and in-band jammer and spoofers are not commercially available protecting the operation in this band.…”

Section: Multi-gnss and The Indian Advantagementioning

confidence: 99%

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Potential of Multi constellation Global Navigation Satellite System in Indian Missile Test Range Applications

et al. 2020

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In this paper, the potentials of using Global Navigation Satellite System (GNSS) techniques in the complex calibration procedure of the tracking sensors for missile test range applications have been presented. The frequently used tracking sensors in test range applications are- electro-optical tracking stations (EOTS) and tracking radars. Over the years, the EOTS are used as the reference for bias estimation of the radars. With the introduction of GPS in test range applications, especially the DGPS, the reference for bias estimation got shifted to DGPS from the EOTS. However, the achievable position solution accuracy is limited to the order of a few meters for DGPS, EOTS, and Radars. With the evolution of Multi-constellation GNSS and carrier-phase based measurement techniques in satellite navigation, achievable position solution accuracies may be improved to sub-meter level. New navigation techniques like real time kinematic (RTK) and precise point positioning have the potentials for use in the calibration procedures of the missile test ranges to the accuracies of centimeter-level. Moreover, because of the availability of a large number of navigation signals over the Indian region, multi-constellation GNSS receivers can enhance signal availability, reliability, and accuracies during the calibration of missile test ranges. Currently available compact, low-cost GNSS modules also offer the possibilities of using these for cost-effective, networked RTK for dynamic calibration of test ranges reducing cost and resource requirements.

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Section: Multi-gnss and The Indian Advantagementioning

confidence: 99%

Section: Multi-gnss and The Indian Advantagementioning

confidence: 99%

Section: Multi-gnss and The Indian Advantagementioning

confidence: 99%

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Potential of Multi constellation Global Navigation Satellite System in Indian Missile Test Range Applications

et al. 2020

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“…India will be able to track the NavIC/IRNSS satellites with a precision of 10 meters as it combines three geostationary satellites (GEO) and four geosynchronous satellites (GSO). IRNSS satellites broadcast the signals in carrier frequencies of 1176.45 MHz (F1) and 2492.08 MHz (F2), respectively, in the L5 band (1164.45-1188.45 MHz) and S band (2483.5-2500 MHz) [2]. A system such as the IRNSS has been proposed by the Indian government to provide positioning services for disaster management, navigation services for aircraft landing in CAT-1 cases, and precision surveying over the subcontinent and 1500 km in the surrounding area [1].…”

Section: Introductionmentioning

confidence: 99%

Performance Observation of IRNSS in Terms of Receiver Geometry and Position Accuracy Over Hyderabad Region

2023

5th ISSE National Conference (INAC-05) on Systems Approach for Self-Reliance in Advanced Technologies

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The Indian Regional Navigation Satellite System (IRNSS) is a satellite navigation system developed by the Indian Space Research Organization (ISRO), using the frequencies of the L5 and S1 bands. The IRNSS system is independent of GPS. It is used for position, velocity and timing (PVT) services over the Indian region and surrounding coverage area of 1500 km. The positional accuracy of IRNSS system suffers from many sources of errors. To achieve better accuracy, combination of different navigation systems is required. This paper presents the detailed analysis of IRNSS satellite visibility, dilution of precision (DOP) and signal strength under open sky. The effect of satellite geometry on position accuracy and performance of IRNSS is presented. From the results, it is observed that the combined IRNSS/GPS hybrid mode of operation of dual frequency receiver measurements gives better accuracy compare to hybrid mode of operation using single frequency measurements.

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“…However, to the best of the authors’ knowledge, no such research is available in the open literature in relation to the Indian GNSS, Navigation with Indian Constellation (NavIC). This navigation satellite constellation provides coverage to the Indian sub-continent and areas extending about 1500 km around it [ 40 , 41 ]. NavIC is intended to support aviation users among others over its coverage area.…”

Section: Introductionmentioning

confidence: 99%

Kalman Filter-Based RAIM for Reliable Aircraft Positioning with GPS and NavIC Constellations

Bhattacharyya

Mute

2020

Sensors

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This paper presents a novel Kalman filter (KF)-based receiver autonomous integrity monitoring (RAIM) algorithm for reliable aircraft positioning with global navigation satellite systems (GNSS). The presented method overcomes major limitations of the authors’ previous work, and uses two GNSS, namely, Navigation with Indian Constellation (NavIC) of India and the Global Positioning System (GPS). The algorithm is developed in the range domain and compared with two existing approaches—one each for the weighted least squares navigation filter and KF. Extensive simulations were carried out for an unmanned aircraft flight path over the Indian sub-continent for validation of the new approach. Although both existing methods outperform the new one, the work is significant for the following reasons. KF is an integral part of advanced navigation systems that can address frequent loss of GNSS signals (e.g., vector tracking and multi-sensor integration). Developing KF RAIM algorithms is essential to ensuring their reliability. KF solution separation (or position domain) RAIM offers good performance at the cost of high computational load. Presented range domain KF RAIM, on the other hand, offers satisfactory performance to a certain extent, eliminating a major issue of growing position error bounds over time. It requires moderate computational resources, and hence, shows promise for real-time implementations in avionics. Simulation results also indicate that addition of NavIC alongside GPS can substantially improve RAIM performance, particularly in poor geometries.

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NavIC performance over the service region: availability and solution quality

Cited by 14 publications

References 9 publications

Potential of Multi constellation Global Navigation Satellite System in Indian Missile Test Range Applications

Potential of Multi constellation Global Navigation Satellite System in Indian Missile Test Range Applications

Performance Observation of IRNSS in Terms of Receiver Geometry and Position Accuracy Over Hyderabad Region

Kalman Filter-Based RAIM for Reliable Aircraft Positioning with GPS and NavIC Constellations

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