A Dual Satellite Interferometric Precise Localization Method Based on Short Synthetic Aperture

Guangcai SUN; Yuqi WANG; Zhaozhao GAO; Fan JIANG; Mengdao XING; Zheng BAO

doi:10.11999/JEIT180940

Volume 42 Issue 2

Feb. 2020

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Article Navigation > Journal of Electronics & Information Technology > 2020 > 42(2): 472-479

Guangcai SUN, Yuqi WANG, Zhaozhao GAO, Fan JIANG, Mengdao XING, Zheng BAO. A Dual Satellite Interferometric Precise Localization Method Based on Short Synthetic Aperture[J]. Journal of Electronics & Information Technology, 2020, 42(2): 472-479. doi: 10.11999/JEIT180940

Citation:

Guangcai SUN, Yuqi WANG, Zhaozhao GAO, Fan JIANG, Mengdao XING, Zheng BAO. A Dual Satellite Interferometric Precise Localization Method Based on Short Synthetic Aperture[J]. Journal of Electronics & Information Technology, 2020, 42(2): 472-479. doi: 10.11999/JEIT180940

Citation:

Guangcai SUN, Yuqi WANG, Zhaozhao GAO, Fan JIANG, Mengdao XING, Zheng BAO. A Dual Satellite Interferometric Precise Localization Method Based on Short Synthetic Aperture[J]. Journal of Electronics & Information Technology, 2020, 42(2): 472-479. doi: 10.11999/JEIT180940

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A Dual Satellite Interferometric Precise Localization Method Based on Short Synthetic Aperture

doi: 10.11999/JEIT180940

1.
National Laboratary of Radar Signal Processing, Xidian University, Xi’an 710071, China
2.
Science and Technology on Electronic Information Control Laboratory, Chengdu 610036, China

Funds: The Foundation of Science and Technology on Electronic Information Control Laboratory (20170105)

Received Date: 2018-10-09
Rev Recd Date: 2019-07-18

Available Online: 2019-09-17

Publish Date: 2020-02-19

Abstract

Abstract

Dual satellite TDOA/FDOA localization is achieved by the TDOA hyperboloid and FDOA hyperboloid. The accuracy of localization is affected by TDOA/FDOA accuracy. In order to measure accurately the TDOA/FDOA, a method of TDOA/FDOA measurement based on short synthetic aperture is presented. This method improves the measurement accuracy by using a certain length of synthetic aperture. For narrowband signals, the method has the ability to estimate a single satellite Doppler frequency, and the frequency difference can be obtained from the results estimated by the two satellites. For wideband signals, high-precision estimates of frequency differences can be obtained by dual satellite data interference. For short-term stable radar signals, the processing results of STK simulation data confirm the effectiveness of the proposed method.
- Dual-satellite localization,
- Short synthetic aperture,
- Dual-satellite interferometry,
- TDOA,
- FDOA

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References(23)

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