【摘要】 在被动声纳系统中,线谱检测是一个至关重要的问题。文中利用对称相关函数理论,分析了抵消平稳随机过程中与信号不相关的加性随机噪声的机理,并应用于线谱信号检测。仿真结果表明,该方法比传统的相关法有效,对线谱检测,优于经典功率谱检测方法。更多还原

【Abstract】 Detections of the spectral lines is an important issue in the passive sonar system.The theory of symmetrical function is used to suppress additive stationary random noise;assumption is that the signal and the noise are mutually uncorrelated.Some examples are shown.Results of simulation prove that the method is more effective and better than conventional correlation function when it is used to detect line-spectrum.At the same time,the method is better than traditional power spectrum in detection of line-spectrum.更多还原