应用小区域方差对比，程序简单，基于分段非线性权重值的Pso算法，车牌识别定位程序的部分功能，在MATLAB中求图像纹理特征，有信道编码，调制，信道估计等。- Application of small area variance comparison, simple procedures, Based on piecewise nonlinear weight value Pso algorithm, Part of the license plate recognition locator feature, In the MATLAB image texture feature, Channel coding, modulation, channel estimation.