摘要
为了解决探测距离与分辨率的矛盾,并在后续信号处理中避开直达波的影响,岸-舰双/多基地地波超视距雷达适合采用线性调频中断连续波(FMICW)信号。文中结合该雷达的发射信号模型,分析了回波信号所包含的目标距离信息和多普勒信息,介绍了对接收信号的处理方法,对回波信号进行数字解调等处理后,得出了目标的距离信息和多普勒信息。实测数据的处理结果证明,用FMICW信号作为该雷达的发射信号可以有效地检测出运动目标。
In order to solve the contradiction between the detection range and range resolution and to avoid the effect of direct wave, the coast-ship bistatic ground wave over-the-horizon radar（OTHR） always utilizes the frequency modulated interruptive continuous wave（FMICW） signal. Based on the transmitted signal model of this kind of radar, the range and Doppler frequency of target are analyzed. The process method for transmitted signal is obtained. After demodulation of target echo signal, the range and Doppler frequency of the target can be obtained. The experimental results prove that the scheme is feasible and effective.
出处
《雷达科学与技术》
2007年第3期175-178,219,共5页
Radar Science and Technology
