摘要
形态滤波在软件无线电中用于解调AM信号,效果显著。文章针对形态算法解调AM信号,提出了新的"增量"开、闭快速形态算法,推导出新算法的实时表达式,论述了新算法在AM解调中结构元素的选取规则。通过与传统形态滤波算法比较,显示出新算法在AM类信号软件解调应用中的效率提高极大。实验仿真,验证了该方法对AM类信号的解调具有与传统算法同样良好效果,抗干扰性强,适合现有软件无线电的应用。
The paper proposes the rapid switch of incremental morphological filtering algorithm applied in AM signal demodulation with high efficiency, deduces its realtime expression, and tells of the rules of how to choice structural elements. The algorithm acquires much gain in efficiency as compared with the earlier Morphological Filtering algorithms. The computer simulation experiment results indicate that the algorithm has same strong anti-interference ability as the earlier morphological filtering algorithms, thus is applicable to AM signal demodulation in software radio.
出处
《通信技术》
2009年第6期39-40,43,共3页
Communications Technology
关键词
软件无线电
形态滤波
调幅解调
结构元素
software radio
morphological filtering
AM demodulation
structural element
作者简介
张建成（1972-），男，实验师，主要研究方向为电子技术应用和数字信号处理。
