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| Content Provider | IET Digital Library |
|---|---|
| Author | Huo, Ruiguo Tian, Weiming Mei, Hongyan Wang, Jingyang |
| Abstract | Multiple-input multiple-output (MIMO) radar plays a more and more important role in radar imaging, target detection, and other fields owing to its unique array structure. Transmitting orthogonal signals by different transmitters, a MIMO radar can significantly enhance the azimuth resolution. It forms multiple observation channels from different transmit and receive array elements, achieving an equivalent large aperture in azimuth direction. However, the amplitude and phase errors in each channel are introduced, which will lead to inferior imaging performance of the system, especially in azimuth direction. To solve this problem, a method to estimate the amplitude and phase errors of each channel based on a strong scatterer is proposed here. Peak amplitude of one-dimensional range between channel is estimated using constrained least square (CLS) based on ideal point target characteristics. It proved to be valid by a simulation and an imaging experiment. |
| Starting Page | 5901 |
| Ending Page | 5904 |
| Page Count | 4 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 19, Oct (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/19 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0056 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2019-05-30 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Azimuth Resolution Enhancement Channel Estimation CLS Method Communication Channel Equalisation And Identification Compensation Compensation Method Constrained Least Square Method Inferior Imaging Performance Interpolation And Function Approximation Least Squares Approximation MIMO Imaging Radar MIMO Radar Multiple Observation Channel Multiple-channel Amplitude Error Estimation Multiple-channel Phase Error Estimation Multiple-input Multiple-output Radar Numerical Analysis Optical, Image And Video Signal Processing Orthogonal Signal Transmission Point Target Characteristic Radar Equipment Radar Imaging Radar Receiver Radar Resolution Radar Transmitters Receive Array Element Structure Statistics System And Application Target Detection Transmit Array Element Structure Transmitter |
| Content Type | Text |
| Resource Type | Article |
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