摘要
介绍了非合作双基地雷达的基本几何关系,给出了其平面结构图,讨论了脉冲追赶和同时多波束接收二种空间同步方式的优缺点。利用比幅测角法对非合作雷达的重要参数回波到达角进行估计仿真。在同时多波束空间同步条件下,运用距离和-角度定位法对非合作基地雷达系统定位精度进行估计仿真分析。仿真结果表明定位误差受波达角误差影响,并且有着特殊的空间分布规律,具有一定的工程应用价值。
The basic geometrical relationship of non-cooperative bistatic radar is introduced. The complanate configuration is provided. Advantages and disadvantages of two spatial synchronization methods i. e. pulse chasing and simultaneous multibeam are discussed. Simulation of DOA estimation is performed by using beam amplitude comparison direction finding method, which is an important parameter of non-cooperative bistatic radars. In the condition of using DBF technology to achieve spatial synchronization, simulation of location accuracy of non-cooperative bistatic radar is perform by using distance sum-angle method. The estimation result proves that location accuracy is relative to DOA estimation and has specific spatial distribution.
出处
《雷达科学与技术》
2011年第5期393-396,共4页
Radar Science and Technology
关键词
非合作
双基地雷达
同时多波束
定位精度
non-cooperative
bistatic radar
simultaneous multibeam
location accuracy
