％ 直接序列扩频信号检测程序 ％ 检测方法：平方倍频法

％ 直接序列扩频信号检测程序 ％ 检测方法：平方倍频法- Direct sequence spread spectrum signal detection procedures detection method: square multiplier method

平方倍频法，估计直接序列扩频qpsk信号载频,功率谱估计法采用平均周期图法-Square multiplier method, the estimated direct sequence spread spectrum qpsk signal carrier frequency, power spectrum estimation method using the average periodogram

对DSSS/BPSK信号进行平方倍频法，可以对其载频进行估计(The frequency doubling method of DSSS/BPSK signal can be used to estimate its carrier frequency.)