公开(公告)号：US5533060A

公开(公告)日：1996-07-02

申请号：US358107

申请日：1994-12-16

申请人： Yohdoh Kameo ,  Kazuo Matsumoto ,  Jun Suzuki

发明人： Yohdoh Kameo ,  Kazuo Matsumoto ,  Jun Suzuki

IPC分类号： H04L27/00 ,  H04L27/233 ,  H03D3/22

CPC分类号： H04L27/2332 ,  H04L2027/003 ,  H04L2027/0057

摘要： A digitized quasi-phase synchronous phase detecting signal of the PSK signal is used to generate digitized quasi-synchronous phase detecting signal phase-corrected by phase correcting data and a first phase display data indicating the phase of the carrier of the PSK signal is generated from the phase-corrected digitized quasi-synchronous phase detecting signal. Alternatively, the digitized quasi-synchronous phase detecting signal of the PSK signal is used to generate second phase display data indicating the phase of the carrier of the PSK signal and third phase-corrected phase display data is generated from the second phase display data. The first or third phase display data is used to generate fourth phase display data indicating the phase assigned to the code of the PSK signal and a decoded digitized code is generated from the fourth phase display data. When signal presence display information is in its state to indicate the amplitude of the PSK signal is larger than a predetermined threshold, the frequency and phase of the carrier of the PSK signal are predicted using their estimated frequency and phase based on the first or second and fourth phase display data. When the signal presence display information transitions to its state to indicate that the amplitude of the PSK signal is smaller than the predetermined threshold, the frequency and phase estimated until then are used to predict the frequency and phase of the carrier of the PSK signal and phase data in the predicted frequency and phase data is generated as the phase correcting data.

摘要翻译： 使用PSK信号的数字化准相位同步相位检测信号，生成通过相位校正数据相位校正的数字化的准同步相位检测信号，并且生成表示PSK信号的载波相位的第一相位显示数据 相位校正的数字化准同步相位检测信号。 或者，PSK信号的数字化准同步相位检测信号用于产生指示PSK信号的载波相位的第二相位显示数据，并且从第二相位显示数据产生第三相位校正相位显示数据。 第一或第三相位显示数据用于产生指示分配给PSK信号的代码的相位的第四相位显示数据，并且从第四相位显示数据生成解码的数字化代码。 当信号存在显示信息处于其状态以指示PSK信号的幅度大于预定阈值时，PSK信号的载波的频率和相位是使用它们基于第一或第二的估计的频率和相位来预测的，并且 第四相显示数据。 当信号存在显示信息转变到其状态以指示PSK信号的幅度小于预定阈值时，估计直到那时的频率和相位用于预测PSK信号和相位的载波的频率和相位 产生预测频率和相位数据中的数据作为相位校正数据。