通信信号的参数估计技术及其发展

摘要

The parameter estimation of communication signal is very important in non-cooperative communica tion.To explore the issues of parameter estimation appeared in the process of signal detection and recognition at present,the estimation methods of carrier frequency,symbol rate,SNR and numbers of source are discussed and analyzed from the points of noise environment,data type and algorithm implementation.The methods of parameter estimation under environments of Alpha stable distribution noise and the single channel are intraluced,the prospects are shown further,hoping to make some valuable contributions in this field.%通信信号的参数估计是非协作通信中的一个重要环节,针对目前非协作通信中信号检测与识别过程中所用到的参数估计问题,从噪声环境、数据类型和算法实现的角度,对载频、码元速率、信噪比和信源个数的估计方法进行了讨论和分析,重点介绍了Alpha稳定分布和单通道环境下的参数估计方法,并给出了进一步研究的问题,以期能对该方面的工作有所借鉴.