公开(公告)号：US20120027129A1

公开(公告)日：2012-02-02

申请号：US13270108

申请日：2011-10-10

申请人： Guixue ZHAO ,  Tianxiang WANG

发明人： Guixue ZHAO ,  Tianxiang WANG

IPC分类号： H04B1/10 ,  H03D1/24 ,  H03K9/06 ,  H04L27/14 ,  H03K9/00 ,  H03K9/02 ,  H04L27/06 ,  H03D3/00

CPC分类号： H04L27/06 ,  H04L25/069 ,  H04L27/1563

摘要： A demodulation circuit, a digital microwave system including the demodulation circuit, and a signal demodulation method are provided. The demodulation circuit includes a first circuit, a second circuit, a third circuit, and a fourth circuit connected in turn. The fourth circuit includes a pulse counting unit and a data decision unit connected in turn. The signal demodulation method includes: performing bandpass filtering on input signals; increasing gains of the bandpass filtered signals; extracting pulse signals are extracted from the gain-increased signals; counting the extracted pulse signals; filtering the pulse signals having counting values falling outside of a predetermined range, and outputting the filtered pulse signals.

摘要翻译： 提供了解调电路，包括解调电路的数字微波系统和信号解调方法。 解调电路包括依次连接的第一电路，第二电路，第三电路和第四电路。 第四电路包括依次连接的脉冲计数单元和数据判定单元。 信号解调方法包括：对输入信号进行带通滤波; 增加带通滤波信号的增益; 从增益增益信号中提取提取脉冲信号; 对所提取的脉冲信号进行计数; 对具有落在预定范围之外的计数值的脉冲信号进行滤波，并输出经滤波的脉冲信号。