摘要
In synthetic aperture radar (SAR), low scene-contrast may invalidate most of existing autofocus methods, and the limited autofocus performance is also difficult to be verified. Based on a parametric statistical signal model in the coherent processing interval (CPI) of SAR, a novel SAR autofocus method is developed and it is especially applicable to extremely low-contrast scene. Furthermore, the limitation of CPI length and the Cramér-Rao low bound of autofocus parameter estimation are all analytically obtained. Finally, real measurement data is also exploited to validate the proposed model and the new method.
| 源语言 | 英语 |
|---|---|
| 页 | 50-52 |
| 页数 | 3 |
| 出版状态 | 已出版 - 2004 |
| 已对外发布 | 是 |
| 活动 | Proceedings of the IEEE Radar Conference - Philadelphia, PA, 美国 期限: 26 4月 2004 → 29 4月 2004 |
会议
| 会议 | Proceedings of the IEEE Radar Conference |
|---|---|
| 国家/地区 | 美国 |
| 市 | Philadelphia, PA |
| 时期 | 26/04/04 → 29/04/04 |
指纹
探究 'A novel parametric SAR autofocus method' 的科研主题。它们共同构成独一无二的指纹。引用此
Xu, J., Peng, Y., Zhang, L., Lin, Y., & Xia, X. (2004). A novel parametric SAR autofocus method. 50-52. 论文发表于 Proceedings of the IEEE Radar Conference, Philadelphia, PA, 美国.