岸-舰双基地SIAR雷达距离-速度分辨率分析  

Analysis of range-velocity resolution for coast-ship bistatic SIAR

作　　者：陈多芳[1] 陈伯孝[1] 刘春波[1] 张守宏[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《系统工程与电子技术》2008年第1期75-78,共4页Systems Engineering and Electronics

基　　金：国防预研基金(40106020203);教育部优秀人才支持计划(NCET-06-0856)资助课题

摘　　要：双基地脉冲综合孔径雷达SIAR在发射站采用多个天线同时辐射不同载频的调频中断连续波FMICW信号,在接收站用一个全向天线接收目标回波。推导了该雷达发射信号的模糊函数,分析了影响其距离和速度分辨率的因素以及波形参数选取原则,结合双基地雷达的特点,给出了模糊函数与目标位置的关系。分析表明,该信号形式具有较高的距离和速度分辨率。但由于是双基地雷达,分辨率比单基地雷达差,而且从距离维不能分辨基线的目标。The bistatic synthetic impulse and aperture radar （SIAR） adopts several antennas at the transmitter to emit frequency modulated interrupted continuous wave （FMICW） signals of different carrier frequencies and an omnitenna to receive the returns. An introduction is given to the ambiguity function of the transmitted waveform, based on which the resolution and the principles for waveform design are analyzed. Combined with bistatic radar, the velation between the resolution and the target positron is discussed. The results show that the resolution of this waveform is high. Compared with monostatic radar, the bistatic radar has a lower resolution and targets on the baseline can＇t be discriminated in range domain.

关 键 词：双基地SIAR FMICW信号 模糊函数 分辨率 

分 类 号：TN958.93[电子电信—信号与信息处理]