摘要
In this paper, a motion compensation method based on Keystone transform is introduced to deal with the issue of multi-frame stepped Doppler frequency signal shift caused by mobile target. The stretching-drawing transform in time domain was employed to compensate the Doppler frequency shift. Moreover, two methods of parsing velocity ambiguity were studied: one is based on multi-channel Keystone transform and the other is based on binding information. Theoretical analysis and simulation results demonstrate that the compensation method could improve the velocity resolution and signal-to-noise efficiently. Also, the issues from target motion could be solved such as peak decrease, waveform divergence, etc.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 625-630 |
| 页数 | 6 |
| 期刊 | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| 卷 | 32 |
| 期 | 6 |
| 出版状态 | 已出版 - 6月 2012 |