公开(公告)号：US4962508A

公开(公告)日：1990-10-09

申请号：US908831

申请日：1986-09-18

申请人： Samuel C. Kingston

发明人： Samuel C. Kingston

IPC分类号： H04K3/00

CPC分类号： H04K3/228

摘要： In a receiving apparatus for detecting the presence or absence of periodically keyed random modulated signals, there are provided a pair of separate and distinct detection channels. One channel produces a real signal having clock line components and the other channel produces a decorrelated imaginary signal having no clock line components. The real and imaginary signals having carrier wave interference signals are processed in a Fourier transform device and a post processor to cancel out the carrier wave interference signals and to provide only a clock signal output when periodically keyed random modulated signals are being received.

摘要翻译： 在用于检测周期性键控随机调制信号的存在或不存在的接收装置中，提供了一对单独且不同的检测通道。 一个通道产生具有时钟线分量的实际信号，另一个通道产生没有时钟线分量的去相关虚拟信号。 具有载波干扰信号的实信号和虚信号在傅立叶变换装置和后处理器中被处理以抵消载波干扰信号，并且当正在接收周期性键控随机调制信号时仅提供时钟信号输出。