【摘要】 提出了一种通过拟合自相关函数估计1/f类分形信号信噪比的新方法。其总的延迟可以由带噪分形信号的互信息曲线在第一区域内达到极小值的时间来确定。仿真实验结果表明,该方法简单可靠,有效可行,且事先不需要知道分形信号参数及加性白噪声的先验知识,因此具有很好的适应性。更多还原

【Abstract】 On the basis of the fit for autocorrelation function,a new SNR estimation approach for 1/f fractal signal was proposed.The total delay time could be determined through the time of mutual information curve of the signal with noise getting to the maximum in the first quadrant.Simulation results show that this method is simple,reliable,practicable,and effective without awareness of fractal signal parameters and a priori knowledge of added white noise,which means it is suitable in most situations.更多还原