摘要
针对室内以及山区多径环境下MPSK信号的调制识别,提出一种基于高阶累积量的识别算法。该算法利用高阶累积量良好的抗噪性能,实现了多径信道下的有效识别。理论分析及仿真结果表明,采用本文所提出的识别算法,在中等信噪比条件的,对多径信道的MPSK信号的整体识别率在90%以上,能满足实际应用的需要。
An algorithm based on high-order cumulant is proposed for the modulation recognition of MPSK signals under the multi-path environment of in-door and mountainous area. The good de-noising performance of high-order eumulant is utilized to obtain effective recognition under the multi-path environment. Theoretical analysis and simulation resuls show that under the medium signal to noise ratio, the overall recognition rate is above 90% by the algorithm proposed in this paper, which can meet the requirement of practical application.
出处
《电子技术应用》
北大核心
2010年第2期103-105,110,共4页
Application of Electronic Technique
