中文说明：数据通道剥离伪码后的载波估计问题。对直接序列扩频系统的数据通道，假定接收设备已“完美”地锁定接收信号伪码，并实现了伪码剥离其中，信号幅度、电文、载波多普勒和载波相位均未知。电文的速率为10Hz。由于信源与接收端信号传输时延的不确定性，收到的信号电文是从某个未知时刻开始的。
English Description：
Data channels split pseudo code after the carrier estimation problem. Data channel for direct-sequence spread-spectrum systems, assumes that the receiving device is "perfect" to lock the pseudo code of the received signal, and implemented PN-split, signals, messages, containing boduopule and carrier phase are unknown. The rate at which message is 10Hz. Due to uncertainty of the information source and the receiver signal transmission delay, signal message is received from an unknown moment.