摘要
宽带雷达信号可以获得高距离分辨力,如何针对不同的应用场合选择合适的宽带信号就显得十分重要。本文对线性调频信号、步进频率信号和线性调频步进信号这三种高分辨信号作了逐一分析,利用模糊函数讨论了它们的分辨力、距离-多普勒耦合等性能,介绍了每种信号的高分辨处理方法,并且研究了ISAR成像处理时目标运动所产生的影响及其补偿方法。
Wide-band radar signal can obtain a high range resolution. It is very important to choose a proper wide-band waveform for a special application. This paper focuses on three kinds of high-range-resolution signals: stretch, stepped-frequency pulse and linearly modularized frequency stepped signals. Resolution ability and range-Doppler coupling are discussed separately by ambiguity functions. The high-range-resolution methods are introduced. The effects of motion and the methods of motion compensation in ISAR imaging are analyzed.
出处
《火控雷达技术》
2005年第2期67-72,共6页
Fire Control Radar Technology
关键词
步进频率
线性调频步进
逆合成孔径雷达
运动补偿
宽带信号
stretch
stepped-frequency
linearly modulated frequency stepped
high-resolution
ISAR
motion compensation
