基于双向同步技术的机载双站SAR同步研究  

Airborne bistatic SAR technique research based on two-way synchronization

作　　者：雷科[1] 汪学刚[1] 公岷[2] 

机构地区：[1]电子科技大学电子工程学院,四川成都610054 [2]四川九洲电器集团有限责任公司,四川绵阳621000

出　　处：《系统工程与电子技术》2008年第4期641-643,共3页Systems Engineering and Electronics

摘　　要：提出了一种结合双向时间传递和双向相位传递的同步方法。通过FFT谱分析法得到精确的相位差,采样不需要整周期采样,分析得到时间、相位差值,使其对成像进行补偿可使系统时间、相位达到同步。给出了基于该方法的系统同步框图,对时间、相位同步进行了精度分析和误差仿真实验,为时间、相位同步的工程实现提供了参考。To study time and phase synchronization technique of airborne bistatie SAR, a synchronization way which combines two way time transfer way and two-way phase transfer way is proposed. Time difference and phase difference are given out by analysis, which is used in the imaging compensation. The frame of the system based this synchronization way is given, the main factors which affect the prceision of the system are analyzed and the experimentation of errors simulation is given. These can be as references for synchronization system implementation.

关 键 词：机载双站合成孔径雷达 系统同步 双向时间传递 双向相位传递 

分 类 号：TN958[电子电信—信号与信息处理]