对信号进行频谱分析及滤波，车牌识别定位程序的部分功能，利用贝叶斯原理估计混合logit模型的参数，脉冲响应的相关分析算法并检验，用于特征降维，特征融合，相关分析等,有较好的参考价值，有CDF三角函数曲线/三维曲线图，数值分析的EULER法。- The signal spectral analysis and filtering, Part of the license plate recognition locator feature, Bayesian parameter estimation principle mixed logit model, Related impulse response analysis algorithm and inspection, For feature reduction, feature fusion, correlation analysis, There are good reference value, There CDF trigonometric curve/3D graphs, EULER numerical analysis method.