一、引言现代战争中,威胁目标(飞机、导弹)朝着低飞和小雷达截面(隐身技术)的方向发展。为了使地面雷达能尽可能地探测到这类威胁目标,在现代雷达系统设计中,采用了各种各样信号处理技术,并且在不断开拓信号处理的新领域,以便更好地对付低飞和小雷达截面的威胁目标。在众多的信号处理技术领域中,研究一下雷达发射调制信号的 I. INTRODUCTION In modern warfare, the threat targets (aircraft and missiles) are moving in the direction of low-flying and small radar cross-sections (stealth techniques). In order to enable ground-based radars to detect such threat targets as much as possible, a variety of signal processing techniques are used in the design of modern radar systems and new areas of signal processing are constantly being developed to better deal with low-flying and Small radar cross-section of the threat target. In many areas of signal processing technology, research radar transmission modulated signal