高频信号一致性比较方法研究

摘要

In the model validation process of anti-jamming simulation system, we developed the standardized model validation process and designed the required data collection model validation experimental program for data acquisition and data processing.During model validation of anti-jamming simulation system, the consistency check of high frequency signal was first found.For random high frequency target echo signal, the traditional ways of error analysis, spectral analysis and wavelet transform can not solve the consistency problem of contrast.On the base of theory and data analysis, the methods for extracting character attribute of signal by physics attribute of signal were proposed innovatively, and the consistency check about high frequency signal was developed.The result shows that the method can not only solve the above-mentioned problem effectively, but also possess better creditability.So the method will provide technique support for model reliability of anti-jamming simulation system.%在抗干扰仿真系统的模型验证过程中,制定了规范的模型验证流程,设计了采集模型验证所需数据的试验方案,完成数据采集与数据处理工作.为了验证目标模型和导引头模型的正确性,提出了半实物仿真试验与信号级数学仿真试验导引头输出的目标回波信号一致性的验模比较方案,由于目标回波信号是随机高频信号,利用传统的误差分析、频谱分析、小波变换等方法无法解决其一致性对比的问题.为此,进行了大量的理论分析与数据分析的工作,提出了根据信号的物理特性提取信号特征方法,开展高频信号的一致性比较研究,结果表明不仅有效解决了高频信号的一致性比较问题,而且具有很好的可信性.为有效的解决抗干扰仿真系统的模型可信性提供了技术支撑.