摘要
建立了空基运动平台连续波照射条件下无源雷达地杂波空时二维模型,其中考虑了双基地雷达的几何配置、雷达的系统参数、各种误差等实际因素对杂波谱的影响。基于该模型分析了杂波特性,并计算了杂波的空时二维似然谱,分析了它与脉冲信号地杂波的差别及其对杂波抑制的影响,结果表明所建杂波模型是合理的。该模型是研究空基运动平台连续波照射条件下无源雷达杂波抑制与空时自适应处理技术的基础。
A two-dimensional space-time ground clutter model for the bistatic passive radar based on airborn continuous waveform illuminator is set up,taking into account of the effects on the clutter spectrum due to the configurations and parameters of the bistatic radar system,as well as the measurement errors.The clutter characteristics and difference between continuous waveform and pulse waveform are analyzed,and the validity of the clutter model is demonstrated by nimetical simulation of the two dimensional space-time likelihood spectra.This model can be served as a basis for the clutter suppression and STAP techniques in the bistatic passive radar system.
出处
《中国电子科学研究院学报》
2010年第5期486-492,共7页
Journal of China Academy of Electronics and Information Technology
关键词
非合作照射
连续波
地杂波
空时二维似然谱
non-cooperative illuminator
continuous waveform
ground clutter
two-dimensional space-time likelihood spectra
