随机过程： ，其中 是均值为零、方差为1的白噪声， 、 是相互独立并在 上服从均匀分布的随机相位。采用AIC和MDL准则估计信号源个数，并且画出相应的MUSIC频率估计谱线。

要求：信号样本数为1000，估计的自相关矩阵为8阶。

-Stochastic process: where is zero mean and variance 1 white noise, are independent and uniformly distributed on a random phase. Estimated using the AIC and MDL principle source number, and draw lines corresponding MUSIC frequency estimation. Requirement: the signal samples is 1000, the estimated autocorrelation matrix of order 8.