基于谱估计的噪声调频信号检测方法研究  

Study on the detection of noise frequency modulation signal based on spectrum estimation

作　　者：吴初辉[1] 臧小刚[1] 凌小峰[1] 常成[1] 宫新保[1] 

机构地区：[1]上海交通大学电子工程系,上海200240

出　　处：《信息技术》2008年第5期87-89,共3页Information Technology

摘　　要：对干扰信号的频谱特征进行精确测量和分析是实施有效的电子反干扰(ECCM)的重要步骤。通过对噪声调频干扰信号的频谱特征分析,提出采用合适的功率谱估计方法来检测噪声调频信号的主要频谱特征参数。利用MATLAB/Simulink仿真软件分别建立了噪声调频信号源和谱估计方法的系统模型,研究了系统采用不同的谱估计方法和参数设置的情况下所能够达到的检测精度,并根据仿真结果分析比较了不同谱估计方法的性能。The precise measurement and analysis of the spectrum characteristic of interference signal are an important step in electronic counter-countermeasures （ECCM）. Through the spectrum analysis of noise frequency modulation interference signal, the proper estimation method of power spectrum is proposed to detect the main spectrum characteristic of noise frequency modulation signal. Noise frequency modulation signal generator and spectrum estimation system are constructed with MATLAB/Simulink simulations, respectively. Detection precision with different spectrum estimation methods and parameter settings are studied. The performance comparison of different spectrum estimation methods is also analyzed based on the simulation results.

关 键 词：电子反干扰 噪声调频信号 信号谱估计 

分 类 号：TN973[电子电信—信号与信息处理]