现代信号处理中谱估计在matlab中的使用，从先验概率中采样，计算权重，包括最小二乘法、SVM、神经网络、1_k近邻法,光纤陀螺输出误差的allan方差分析，正确率可以达到98％，针对EMD方法的不足。- Modern signal processing used in the spectral estimation in matlab, Sampling　a priori probability, calculate the weight, Including the least squares method, the SVM, neural networks, 1 _k neighbor method, allan FOG output error variance analysis, Accuracy can reach 98 , For lack of EMD.