是国外的成品模型，外文资料里面的源代码，包括调制，解调，信噪比计算，车牌识别定位程序的部分功能，有较好的参考价值，数学方法是部分子空间法，验证可用。- Foreign model is finished, Foreign materials inside the source code, Includes the modulation, demodulation, signal to noise ratio calculation, Part of the license plate recognition locator feature, There are good reference value, Mathematics is part of the subspace, Verification is available.