摘要
研究了球载发射源、地面接收站条件下的双基地雷达地杂波问题。首先在给出空地双基地雷达的空间几何模型基础上,研究了空地双基地雷达杂波建模方法,导出了空地双基地雷达在指定距离门内地杂波模型的表达式。对空地双基地雷达地杂波的距离-多普勒二维分布特性进行了仿真分析,并讨论了收发波束照射同步对地杂波多普勒谱特性的影响,得出了收发波束的精确照射同步可以提高系统改善因子的结论。
Ground clutter modeling and the characteristic of the bistatic radar are studied,and the radar is composed of a transmitter on a tethered aerostat and a receiver on the ground.The geometry model of the ground clutter is presented and some factors of the clutter are analyzed,including the ground reflectivity characteristics and radar system parameters.The expression of the certain range gate of the clutter is derived.The range-doppler spectrum of the clutter is simulated and the effect of the space synchronization on the doppler spectrum of the clutter is analyzed.The result shows that a precise synchronization can obtain a good improvement factor.
出处
《数据采集与处理》
CSCD
北大核心
2010年第6期777-782,共6页
Journal of Data Acquisition and Processing
关键词
系留气球
双基地雷达
地杂波
距离-多普勒谱
tethered aerostat
bistatic radar
ground clutter
range-Doppler spectrum
