摘要
为了提高在脉冲组非严格正交情况下系统的解调性能,提出了采用基于白化变换的检测法进行多脉冲联合解调的思路。仿真结果表明:该方法的性能优于匹配滤波法。与传统解相关法相比,该方法在小信噪比时性能较好,而在大信噪比时则性能较差。根据以上特点,将基于白化变换的检测法与传统解相关法相结合,提出了一种联合检测法。仿真结果表明:该联合检测法的性能优于以上两种方法。
Decorrelation method based on whiting transformation is proposed to improve the system demodulation performance with nonorthogonal pulse group.Simulation results demonstrate that the performance of the proposed method is better than that of matching filter.Comparison with traditional decorrelation method,the proposed method is better when Signal to Noise Ratio（PNR） is low,while it is worse when SNR is high.Based on the above properties,a new decorrelation method integrating the whiting transformation based method and traditional method is proposed.The performance of this new method is better than either of the two methods.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2013年第3期819-823,共5页
Journal of Jilin University:Engineering and Technology Edition
基金
国家自然科学基金项目(60772056)
山东省'泰山学者'建设工程专项项目
关键词
通信技术
非正弦波
时域正交
解相关
白化变换
communication
non-sinusoidal wave
orthogonal in time domain
decor relation
whiting transform
作者简介
张磊（1979～），男，工程师，博士．研究方向：非正弦通信技术．E—mail：win_romance@163．com
