gps(available)\AcquireCACode.m ..............\AcquireCACode1.m ..............\CACode.m ..............\CACode2.m ..............\CAcorrelation.m ..............\getposition.m ..............\GPS.m ..............\modulation.m ..............\NavigationData.m ..............\SpreadSpectrum.m ..............\捕获信息.mat ..............\收到的射频信号.mat gps(available)