A novel TOA estimation algorithm for SAR/Galileo system

Liu, Gang; He, Bing; Hong, Feng; Zheng, Wandong

doi:10.1109/icsmc.2008.4811849

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…The multipath fading is usually not crucial, because we dispose with the space macrodiversity (only four satellites must receive the distress signal to localize the UE in distress). We choose spreading factor S F = 2 17 = 131072, hence the processing gain is G p = 10 log S F ≈ 51 dB, (5) which provides the power reserve (fade margin) of approximately 5,4 dB. This will be improved with other processing, first of all with the channel coding scheme, by other 5 dB.…”

Section: Radio Uplink Power Budgetmentioning

confidence: 98%

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A satellite based localisation service using a 3G mobile phone as an emergency terminal

Petrek

2015

2015 25th International Conference Radioelektronika (RADIOELEKTRONIKA)

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In this paper, a new satellite based search and rescue system is designed. The old one -the COSPAS-SARSAT distress alert detection and distribution system, has been working for 30 years and rescued about 40 thousands of lives world-wide, in spite of low precision of the distress localization and long localization time. In this paper, a new system is designed, whose user terminal can be implemented into a 3G mobile phone, without increasing its size and power, while using a Global Navigation Satellite Systems (GNSS) like GPS, GLONASS or Galileo. The system will offer an exact and quick location service also in areas without the terrestrial mobile network coverage for billions of 3G users.

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Section: Radio Uplink Power Budgetmentioning

confidence: 98%

“…The system is going to be integrated into the Galileo system; in spite it brings no additional value in comparison with the incoming DASS system. Some improvements are designed in [5]. The basic disadvantages of all mentioned systems are:…”

Section: Introductionmentioning

confidence: 98%

A satellite based localisation service using a 3G mobile phone as an emergency terminal

Petrek

2015

2015 25th International Conference Radioelektronika (RADIOELEKTRONIKA)

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“…TP (Tone and Preamble) based algorithm and TPD (Tone, Preamble and Data) based algorithms are researched respectively in [8] and [9], and the conclusion is that the performance of TPD based algorithm is better. By assuming the frequency error is 0.1Hz under the condition that the sample rate is 1MHz and CNR is 34.8dBHz, the accuracy of TPD based algorithm is 7us, which is shown in [10]. However, none of the algorithms consider the uncertainty of message bit width.…”

Section: Introductionmentioning

confidence: 99%

A New Parameter Estimation Algorithm for Actual COSPAS-SARSAT Beacons

Wang¹,

Tian²,

Wu³

2010

IJIEEB

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Research on FOA and TOA Estimation Algorithm of Galileo SAR Signal

Wang

Dong

2010

2010 2nd International Conference on Information Engineering and Computer Science

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In order to estimate FOA and TOA accurately in Galileo Search and Rescue system by considering that the message bit width and the phase edge time are unknown, we present a new FOA and TOA estimation algorithm which combines the algorithm based on Multiple dimensions Joint Maximum Likelihood Estimation criterion and Barycenter calculation algorithm. The FOA and TOA estimation errors of this algorithm can be limited within 0.03Hz and 12us in the condition that carry-to-noise rate (CNR) equals to CNR treatment threshold which is 34.8dBHz and phase edge time is 250us for received signals. Theoretical analysis and measurement results have proved the effectiveness of this algorithm. And the algorithm has been applied to the Galileo MEOLUT station.

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A novel TOA estimation algorithm for SAR/Galileo system

Cited by 3 publications

References 4 publications

A satellite based localisation service using a 3G mobile phone as an emergency terminal

A satellite based localisation service using a 3G mobile phone as an emergency terminal

A New Parameter Estimation Algorithm for Actual COSPAS-SARSAT Beacons

Research on FOA and TOA Estimation Algorithm of Galileo SAR Signal

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