摘要
针对传统数字调制信号频谱扩展问题,提出具有相位突变特性的时相调制(TPM)方式。基于循环谱理论对TPM已调信号的谱相关特性进行了详细的理论分析,计算机仿真实验验证了分析得到的结果,为TPM调制信号的干扰与噪声抑制提供了一种较好的非平稳信号处理方案。
Aiming at the spectrum spread problem of traditional digital modulation signals, a time-phase modulation （TPM） method with abrupt phase change characteristic is proposed. A detailed analysis of the cyclostationary properties is made for TPM signals in theory. The cyclostationary properties of TPM signals have been proved by computer simulations. It provides a good method to reject the noise and interference on the TPM non-stationary signals.
出处
《电讯技术》
北大核心
2009年第3期16-21,共6页
Telecommunication Engineering
基金
国家自然科学基金资助项目(60772056)
关键词
无线数字通信系统
循环谱
时相调制
相位突变
缩频调制
wireless digital communication system
cyclic spectrum
time-phase modulation
abrupt phase change
compressed spectrum modulation
