在本 GPS 软件接收机的实现中，主要针对C/A 码的捕获和跟踪算

法进行了C++代码的优化和改进，并在C++环境中调用Matlab 来实现

傅立叶变换的快速计算，将C++和Matlab 有机地结合在一起，提高了软件接收机的处理速度；使用类函数来实现大量的数组和矩阵运算，简化了程序的复杂性，提高了程序的可读性；分析所得到的卫星并从中筛选出四颗卫星来计算用户位置，提高了用户位置的精度。-In the GPS software receiver implementation, mainly for C/A code acquisition and tracking algorithm C++ code optimization and improvement, and in the C++ environment, called Matlab to implement the Fourier transform of the fast calculation, the C++ and Matlab organic together, improve the processing speed of the software receiver　use the class function to implement a large number of array and matrix operations, simplify the complexity of the program to improve the readability of the program　analysis of satellite and obtained from selected four satellites to calculate the location of the user to improve the accuracy of user location.