Micro-strip resonance coherent demodulator for AMPSK modulating signals

Ampsk调制信号的微带谐振相干解调器

Abstract

本发明公开了一种AMPSK调制信号的微带谐振相干解调器,解调器直接从天线接收到的模拟信号中提取出与接收信号载波同频且严格反相的相干载波后,再与接收到的AMPSK调制信号相叠加,从而抑制AMPSK调制信号载波并放大AMPSK相位调制时段,实现对信号的解调,不需要对接收信号进行模数转换或下变频,而且解调器仅用一段微带开路线便同时完成相干载波的提取和AMPSK调制信号的相干解调。本发明在维持不对称多元相移键控(AMPSK)调制信号频谱利用率高、信息传输速率快等优势的前提下,解决了传统基于数字冲击滤波器的解调方法受限于模数转换和处理速率、难以胜任对微波频段调制信号的解调的不足。
The invention discloses a micro-strip resonance coherent demodulator for AMPSK modulating signals. After the demodulator directly extracts a coherent carrier from analog signals received through an antenna, the coherent carrier and the received AMPSK modulating signals are superposed, wherein the coherent carrier and a received signal carrier are the same in frequency and strictly opposite in phase. Therefore, an AMPSK modulating signal carrier is restrained, an AMPSK phase modulation time interval is expanded, the signals are demodulated, no analog-digital conversion or down-conversion needs to be carried out on the received signals, and the demodulator can complete coherent carrier extraction and AMPSK modulating signal coherent demodulation only through a micro-strip open-circuit line. According to the micro-strip resonance coherent demodulator for the AMPSK modulating signals, on the premise that the advantages of being high in the spectrum utilization rate of the AMPSK modulating signals and high in information transmission rate are kept, the problems that a traditional demodulation method based on a digital shock filter is limited by analog-digital conversion and the processing rate, and the microwave frequency band modulation signals are hard to demodulate are solved.

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    CN-104135454-ANovember 05, 2014东南大学Ampsk无线携能通信系统的频域功率分配器
    CN-104135454-BMay 31, 2017东南大学Ampsk无线携能通信系统的频域功率分配器