Potential Accuracy of Joint Parameter Estimate by Space-Based Radar Altimeter
The subject of research is a space-based radar altimeter. Modern satellite altimeters along with the instant distance to an earth surface are to measure the sea wave height and scattering cross section per unit of a probed spot. Ranking of specific measuring algorithms for the quantities mentioned i...
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| Format: | Article |
| Language: | Russian |
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Saint Petersburg Electrotechnical University "LETI"
2017-08-01
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| Series: | Известия высших учебных заведений России: Радиоэлектроника |
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| Online Access: | https://re.eltech.ru/jour/article/view/182 |
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| author | D. S. Borovitsky A. E. Zhesterev V. P. Ipatov R. M. Mamchur |
| author_facet | D. S. Borovitsky A. E. Zhesterev V. P. Ipatov R. M. Mamchur |
| author_sort | D. S. Borovitsky |
| collection | DOAJ |
| description | The subject of research is a space-based radar altimeter. Modern satellite altimeters along with the instant distance to an earth surface are to measure the sea wave height and scattering cross section per unit of a probed spot. Ranking of specific measuring algorithms for the quantities mentioned is carried out by comparison of their accuracy indicators with the reference which is minimum theoretical estimate variance established by the Cramer-Rao bound. Calculation of such bounds in case of joint estimate comes down to inversion of the Fisher information matrix. In the paper, this task is solved within the framework of Gaussian approximation of both compressed ranging pulse and antenna pattern. As a result, expressions for noise variances of joint estimates of satellite height, significant wave height and power SNR are obtained. Quantifying the received equations into figures is implemented by numerical integration. |
| format | Article |
| id | doaj-art-c0e156293ff449618cc26018f899c35d |
| institution | Kabale University |
| issn | 1993-8985 2658-4794 |
| language | Russian |
| publishDate | 2017-08-01 |
| publisher | Saint Petersburg Electrotechnical University "LETI" |
| record_format | Article |
| series | Известия высших учебных заведений России: Радиоэлектроника |
| spelling | doaj-art-c0e156293ff449618cc26018f899c35d2025-08-20T03:39:52ZrusSaint Petersburg Electrotechnical University "LETI"Известия высших учебных заведений России: Радиоэлектроника1993-89852658-47942017-08-01043341182Potential Accuracy of Joint Parameter Estimate by Space-Based Radar AltimeterD. S. Borovitsky0A. E. Zhesterev1V. P. Ipatov2R. M. Mamchur3JSC "Russian Institute of Radionavigation and Time" (Saint Petersburg)JSC "Russian Institute of Radionavigation and Time" (Saint Petersburg)Saint Petersburg Electrotechnical University "LETI"Saint Petersburg Electrotechnical University "LETI"The subject of research is a space-based radar altimeter. Modern satellite altimeters along with the instant distance to an earth surface are to measure the sea wave height and scattering cross section per unit of a probed spot. Ranking of specific measuring algorithms for the quantities mentioned is carried out by comparison of their accuracy indicators with the reference which is minimum theoretical estimate variance established by the Cramer-Rao bound. Calculation of such bounds in case of joint estimate comes down to inversion of the Fisher information matrix. In the paper, this task is solved within the framework of Gaussian approximation of both compressed ranging pulse and antenna pattern. As a result, expressions for noise variances of joint estimates of satellite height, significant wave height and power SNR are obtained. Quantifying the received equations into figures is implemented by numerical integration.https://re.eltech.ru/jour/article/view/182satellite altimeterjoint estimationmaximum likelihood estimatecramer-rao boundfisher matrix |
| spellingShingle | D. S. Borovitsky A. E. Zhesterev V. P. Ipatov R. M. Mamchur Potential Accuracy of Joint Parameter Estimate by Space-Based Radar Altimeter Известия высших учебных заведений России: Радиоэлектроника satellite altimeter joint estimation maximum likelihood estimate cramer-rao bound fisher matrix |
| title | Potential Accuracy of Joint Parameter Estimate by Space-Based Radar Altimeter |
| title_full | Potential Accuracy of Joint Parameter Estimate by Space-Based Radar Altimeter |
| title_fullStr | Potential Accuracy of Joint Parameter Estimate by Space-Based Radar Altimeter |
| title_full_unstemmed | Potential Accuracy of Joint Parameter Estimate by Space-Based Radar Altimeter |
| title_short | Potential Accuracy of Joint Parameter Estimate by Space-Based Radar Altimeter |
| title_sort | potential accuracy of joint parameter estimate by space based radar altimeter |
| topic | satellite altimeter joint estimation maximum likelihood estimate cramer-rao bound fisher matrix |
| url | https://re.eltech.ru/jour/article/view/182 |
| work_keys_str_mv | AT dsborovitsky potentialaccuracyofjointparameterestimatebyspacebasedradaraltimeter AT aezhesterev potentialaccuracyofjointparameterestimatebyspacebasedradaraltimeter AT vpipatov potentialaccuracyofjointparameterestimatebyspacebasedradaraltimeter AT rmmamchur potentialaccuracyofjointparameterestimatebyspacebasedradaraltimeter |