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Content Provider | IET Digital Library |
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Author | Liu, Yin |
Abstract | In a distributed coherent aperture radar, the time delay differences and the phase differences among received echoes from each pair of transmitter–receiver should be estimated and then can be compensated to realise coherent processing. Most of the existing algorithms improve the outputs of the matched filtered signals of each transmitter–receiver pair separately. In this study, a structure of equal time delay differences existing in the signal model can be exploited to jointly perform coherence parameter estimation. With this idea, a structure-based joint estimation algorithm is presented to enhance the performance of the coherence parameter estimation. Simulation results verify that this algorithm can have better estimation performance compared with some existing algorithms in the case of low signal-to-noise ratios. Especially, its performance advantage is more significant in the multiple nearfield target scenarios. |
Starting Page | 1123 |
Ending Page | 1130 |
Page Count | 8 |
Volume Number | 2020 |
e-ISSN | 20513305 |
Issue Number | Issue 11, Nov (2020) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2020/11 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0907 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2020-09-07 |
Access Restriction | Open |
Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
Subject Keyword | Coherence Parameter Estimation Coherent Processing Delay Distributed Coherent Aperture Radar Echo Equal Time Delay Differences Estimation Performance Filtering Method in Signal Processing Filtering Theory Matched Filter Matched Filtered Signal Parameter Estimation Phase Differences Radar Detection Radar Equipment Radar Imaging Radar Resolution Radar Signal Processing Received Echoes Signal Processing And Detection Structure-based Joint Estimation Algorithm Synthetic Aperture Radar System And Application Transmitter–receiver Pair |
Content Type | Text |
Resource Type | Article |
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