文件名称:xcorr
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原信号s1为正弦信号，原信号s2为频率相同的另一正弦信号；
对s1、s2分别加噪声n1、n2得到信号x、y；
对加有噪声的x做自相关函数估计原信号；
对加有噪声的x、y做互相关函数估计原叠加信号。-The original signal s1 is a sinusoidal signal, the original signal s2 is another sinusoidal signal with the same frequency
On s1, s2 were added noise n1, n2 get the signal x, y
Adding the noise to the x to do the autocorrelation function to estimate the original signal
For the addition of noise x, y do cross-correlation function to estimate the original superposition signal.
对s1、s2分别加噪声n1、n2得到信号x、y；
对加有噪声的x做自相关函数估计原信号；
对加有噪声的x、y做互相关函数估计原叠加信号。-The original signal s1 is a sinusoidal signal, the original signal s2 is another sinusoidal signal with the same frequency
On s1, s2 were added noise n1, n2 get the signal x, y
Adding the noise to the x to do the autocorrelation function to estimate the original signal
For the addition of noise x, y do cross-correlation function to estimate the original superposition signal.
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homework_1.m