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| SAR成像中采用FIR滤波器校正距离弯曲的方法 | |
| 引用本文： | 常文胜,蓝金巧,邢孟道,保铮. SAR成像中采用FIR滤波器校正距离弯曲的方法[J]. 遥测遥控, 2005, 0(6) |
| 作者姓名： | 常文胜 蓝金巧 邢孟道 保铮 |
| 作者单位： | 西安电子科技大学雷达信号处理国家重点实验室，航天科技集团公司第七○四研究所，西安电子科技大学雷达信号处理国家重点实验室，西安电子科技大学雷达信号处理国家重点实验室 西安 710071，北京 100076，西安 710071，西安 710071 |
| 摘 要： | 雷达成像中现有的各种校正距离弯曲的方法,其运算量都太大,不能满足实时成像的要求。然而在高分 辨,宽频带SAR中,距离弯曲现象比较严重,如果不校正距离弯曲,就不能得到清晰的高分辨图像。针对这个问题,提出 一种用FIR滤波器校正距离弯曲的方法,较好地校正了距离弯曲,并明显减少了运算量,能满足实时成像系统的要求。 仿真和实测数据的处理结果表明其有效性。 |
| 关 键 词： | FIR 距离弯曲 |
A Method for Range Cell Curve Correction with FIR Filters in SAR Imaging |
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| Chang Wensheng Lan Jinqiao Xing Mengdao Bao Zheng. A Method for Range Cell Curve Correction with FIR Filters in SAR Imaging[J]. Telemetry & Telecontrol, 2005, 0(6) | |
| Authors: | Chang Wensheng Lan Jinqiao Xing Mengdao Bao Zheng |
| Affiliation: | Chang Wensheng Lan Jinqiao Xing Mengdao Bao Zheng |
| Abstract: | Most of the radar imaging methods available that are used In correct the range cell curve can not satisfy the requirement of real time imaging because of their large amount of computation. But in the ease of high resolution and wideband SAR,the phenomenon of range cell curve is obvious ,therefore the high-resolution images can not be obtained without the correction of range cell curve.In order to solve this problem,an approach that is used In correct the range cell curve by FIR filter is presented in this paper.It can be used to correct the range cell curve well and requires less computation than other normal methods ,so this approach can satisfy the requirement of real time imaging.The experiment results of simulation and real data prove its effectiveness. |
| Keywords: | FIR Range cell curve Complex computation |
| 本文献已被 CNKI 等数据库收录！ | |