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| Content Provider | IET Digital Library |
|---|---|
| Author | Hu, Xueyao Zhang, Xinyu Li, Yang Wang, Hongyu Wang, Yanhua |
| Abstract | Clutter presents considerable heterogeneity in forward-looking airborne radar (FLAR) applications and conventional space-time adaptive processing (STAP) methods are sensitive to model mismatch. As a result, when a strong target signal contaminates the training samples, despite the use of guard cells, the performance of conventional STAP methods degrades significantly. In this study, a robust method, which involves reconstructing a target-free covariance matrix and correcting the presumed steering vector to prevent target cancellation in FLAR, is proposed. First, the target-free covariance matrix is reconstructed through integrating the spatial–temporal spectrum over a sector separated from the desired frequency and direction of targets. Subsequently, the mismatch between presumed steering vector and actual steering vector is corrected via quadratic optimisation. In addition, the processing scheme is applied to real-measured clutter data, and the experimental results validate the effectiveness of the proposed method. |
| Starting Page | 7932 |
| Ending Page | 7935 |
| Page Count | 4 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 21, Nov (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/21 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0708 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2019-08-13 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Actual Steering Vector Airborne Radar Airborne Radar Application Algebra Array Signal Processing Considerable Heterogeneity Conventional Space-time Adaptive Processing Method Conventional STAP Method Degrades Covariance Matrices Covariance Matrix Reconstruction FLAR Presumed Steering Vector Processing Scheme Radar Clutter Radar Detection Radar Equipment Radar Signal Processing Radar Theory Robust Method Robust Space-time Adaptive Processing Signal Processing And Detection Space-time Adaptive Processing Statistics Steering Vector Correction Strong Target Signal System And Application Target Cancellation Target-free Covariance Matrix |
| Content Type | Text |
| Resource Type | Article |
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