在MATLAB中求图像纹理特征，通过虚拟阵元进行DOA估计，车牌识别定位程序的部分功能，包括调制，解调，信噪比计算，用于建立主成分分析模型，直线阵采用切比学夫加权控制主旁瓣比。- In the MATLAB image texture feature, Conducted through virtual array DOA estimation, Part of the license plate recognition locator feature, Includes the modulation, demodulation, signal to noise ratio calculation, Principal component analysis model for establishing, Linear array using cut than learning laid upon the right control of the main sidelobe ratio.