Because the cross correlation between auxiliary sequence and spread sequence is linear, some search algorism can be used to estimate the phase of incoming signal quickly without increasing the complexity of system.

• 因为辅助序列与扩频序列的相关函数近似满足线性单调性，可以利用快速搜索算法，如：二分法，对接收信号中扩频序列的相位进行快速搜索，在保证系统复杂度不变的前提下，降低序列捕获的时间。