运动平台上多基地雷达时间同步技术  

Time synchronization technique of multi-station radar on moving flat

作　　者：陈伯孝[1] 朱旭花[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》2005年第10期1734-1737,共4页Systems Engineering and Electronics

摘　　要：常规双/多基地雷达在收站和发站之间采用一定的物理链路进行同步,但如果收站或发站在运动平台上,就不能建立这样的通信链路。为此,研究了在运动平台上的双/多基地雷达的时间同步方法。该雷达采用调频中断连续波(FMICW)信号,时间同步包括调制脉冲的同步和调制频率的同步。在接收站对直达波进行检测和跟踪,再经非相干积累、滤波、谱分析等处理来提取同步信号,分析其性能。计算机仿真结果验证了这种方法的可行性。In conventional bi-station/multi-station radar, the synchronization can be implemented through a physical link between the receiver and the transmitter. This kind of communication link can＇ t be spanned if either transmitter or receiver is located on a moving flat. A method of time synchronization in the mobile bi-station/multistation radar system is studied. This radar use FMICW signals, time synchronization consists of pulse synchronization and frequency-modulation synchronization. This method is to detect and track direct wave at receiving station. Received direct signals are integrated incoherently, filtered, made analysis of spectrum and then time synchronous signals are got. Its performance is analyzed and simulative results are given, which show the proposed method is practical.

关 键 词：多基地雷达 时间同步 直达波 运动平台 

分 类 号：TN958[电子电信—信号与信息处理]