基于正交分解的正弦信号波形恢复  

Wave-recur of Sinusoidal Signal Based on Orthogonal Division

作　　者：冯维婷[1] 

机构地区：[1]西安邮电学院,陕西西安710121

出　　处：《现代电子技术》2009年第15期75-77,共3页Modern Electronics Technique

摘　　要：针对正弦信号的检测问题,提出了基于正交分解的一种正弦信号波形恢复方法。该方法对混有噪声的信号进行正交分解,正弦信号能量会集中在最大正交分量上,而噪声能量却被分散到各个正交分量上不会聚集于最大正交分量,提取最大正交分量将得到原正弦信号的无失真传输波形。该方法能改善信噪比,仿真结果验证了其有效性。A new method of sinusoidal signal detection based on orthogonal division is presented. Through orthogonal division, the signal is concentrated on a principal component, but the noise is equally distributed to several components. Thus, extracting the main component, it can replace the noised signal and that is the output wave of non - distortion transmission of the original wave. The signal to noise rate can be improved, and the effectiveness is shown by the simulated result.

关 键 词：信号检测 正交分解 正弦信号 自相关 

分 类 号：TN911.7[电子电信—通信与信息系统]