摘要
阐述了在雷达多目标仿真系统中杂波相干视频信号模型的建立过程和实时仿真系统的设计及实现。针对仿真过程中非正态随机序列的产生,提出用随机向量法和查表法进行零记忆非线性变换。随机向量法完成线性变换,查表法完成非线性变换,以产生具有指定概率分布和功率谱的非正态相干随机序列,复现与雷达信号具有相参性的杂波相干视频信号。仿真结果证明这些方法的正确性和实用性。
This paper describes the process that establishes the coherent clutter video signal module and the design and realization of real-time simulation system in radar multi-target simulation system. Aiming at the generation of abnormality random sequence in simulating process, this paper presents the random vector method and table lookup method to make the zero-memory nonlinear transform. The random vector method is used to finish the linear transform and the table lookup method is used to finish non-linear transform, in order to generate the abnormality coherent random sequence with desired probability distribution and power spectrum covariance functions, and the clutter coherent video signal that correlates with the radar signal occurs again. The correctness and practicality of the methods are certified by simulation results.
出处
《舰船电子对抗》
2007年第6期56-60,共5页
Shipboard Electronic Countermeasure
关键词
计算机仿真
杂波相干视频信号
零记忆非线性变换
随机向量法
查表法
computer simulation
coherent clutter video signal
zero-memory nonlinear transform
random vector method
table lookup method
