摘要
为了解决杂波仿真中长期存在的精度和实时性之间的矛盾 ,提出了一种新的杂波仿真模型 ,即将杂波计算公式中的参数分类 ,把计算量较大的面积单元事先存储 ,实时构造最大飞行速度下的杂波功率谱 ,然后采用数据抽取技术 ,得到当前速度下的杂波功率谱 ,用这种方法实现了高精度下的实时性 (不考虑反射系数带来的误差 ) .此方法适合于主动雷达导引头及全弹的闭环实时仿真实验 ,也可推广到多距离门的机载脉冲多普勒雷达仿真 .
The contradiction between precision and rapidity can be resolved by making use of the clutter calculation where the area units are pre stored. The clutter power spectrum density (PSD) corresponding to maximum velocity is reconstructed in real time, and then the clutter PSD of the present velocity is obtained using the decimation technology. High speed and resolution are achieved regardless of the error resulted from terrain reflectivity. The method applies to the closed loop clutter simulation for active radar seekers and entire missiles. It can also be expanded to the clutter simulation for multi range gates airborne pulse Doppler radar.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2000年第11期65-69,共5页
Journal of Xi'an Jiaotong University
关键词
脉冲多普勒
杂波
实时仿真
雷达
pulse Doppler
clutter
real time simulation
closed form solution
decimation
