摘要
针对星载双基地雷达系统,研究了基于旋转地球模型的杂波仿真方法。综合考虑平台运动以及地球自转效应,推导得到了该模型下地面杂波单元的多普勒频率表达式。根据系统分辨率特点,建立了基于单基地散射单元划分的星载双基地雷达杂波仿真模型。给出了仿真的具体流程,包括散射单元的划分、主辅星及天线之间的坐标转换、相关K分布随机序列的生成以及散射单元参数的确定。仿真结果及分析验证了本方法的有效性。
A clutter simulation method based on the rotational earth model is studied for space-borne bistatic radar （SBBR） configuration. Doppler frequency expression is derived under consideration of the platform motion and the earth rotation. According to the characteristics of system resolution, a clutter simulation model for SBBR is built based on the clutter cell division method commonly used in monostatic system. Realization procedure is given, along with the key steps including clutter cell division, coordinate transformation among main sat- ellite, concomitant satellite and antennas, generation of correlated-K distribution random sequence and parame- ter determination of clutter cells, The simulation results and corresponding analysis testify the efficiency of the method.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2008年第3期418-422,共5页
Systems Engineering and Electronics
关键词
星栽双基地雷达
地球自转
杂波仿真
主星
辅星
相关K分布
space-borne bistatic radar
earth rotation
clutter simulation
main satellite
concomitant satellite
correlated K-distribution-
