| 基于常规多普勒滤波器组结构的合成宽带距离像性能分析 |
| |
| 引用本文： | 彭卫,汪学刚,赵建宏,吴宏刚.基于常规多普勒滤波器组结构的合成宽带距离像性能分析[J].航空学报,2009,30(6):1096-1102. |
| |
| 作者姓名： | 彭卫 汪学刚 赵建宏 吴宏刚 |
| |
| 作者单位： | 1. 电子科技大学电子工程学院,四川,成都,610054
2. 中国民航局第二研究所,四川,成都,610041 |
| |
| 基金项目： | 国家自然科学基金(60702070) |
| |
| 摘 要： | 为了消除散布效应对宽带信号的不利影响，可以利用多个窄带信号合成宽带信号；同时，通过在子带内处理相干脉冲串，可进行杂波抑制、目标速度估计和区分不同速度的目标。然而，在子带内分别使用常规多普勒滤波器组，会引进多普勒散布效应所造成的输出失配误差，从而造成合成距离像的失真。分析了多普勒散布效应与子带常规多普勒滤波器组输出失配之间的关系，推导了运动目标通过滤波器组后所成高分辨距离像的距离走动公式，给出了适合子带常规多普勒滤波器组的目标速度临界值。仿真实验验证了以上结论。
|
| 关 键 词： | 雷达成像 合成宽带波形 目标多普勒散布效应 子带 滤波器组 |
Analysis of Synthetic Wideband Range Profile Based on Conventional Doppler Filter Banks |
| |
| Peng Wei,Wang Xuegang,Zhao Jianhong,Wu Honggang.Analysis of Synthetic Wideband Range Profile Based on Conventional Doppler Filter Banks[J].Acta Aeronautica et Astronautica Sinica,2009,30(6):1096-1102. |
| |
| Authors: | Peng Wei Wang Xuegang Zhao Jianhong Wu Honggang |
| |
| Institution: | 1.School of Electronic Engineering;University of Electronic Science and Technology of China;Chengdu 610054;China;2.The Second Reseach Institude of Civil Aviation Administration of China;Chengdu 610041;China |
| |
| Abstract: | In order to prevent the deleterious effects of dispersion for wideband signals,a wideband signal can be synthesized by combining coherently several individual narrow band components; meanwhile,clutter mitigation as well as estimation and discrimination of target velocity is enabled by processing the coherent pulse trains in each subband. However,the separate and independent processing using conventional Doppler filter banks in a subband can introduce deleterious effects of target Doppler dispersion among su... |
| |
| Keywords: | radar imaging synthetic wideband waveform target Doppler dispersion effects subband filter banks |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空学报》浏览原始摘要信息 |
| 点击此处可从《航空学报》下载免费的PDF全文 |
