自适应OFDM中信号的调制识别算法研究  

Research on the Modulation Classification for Adaptive OFDM

作　　者：田绪安[1] 徐一兵[1] 王萌[2] 

机构地区：[1]西安通信学院,陕西西安710106 [2]西安电子科技大学,陕西西安710071

出　　处：《现代电子技术》2006年第18期57-59,共3页Modern Electronics Technique

摘　　要：针对通信信号种类和调制方式的多样性、以及无线信道环境的复杂性,研究了自适应OFDM系统中信号调制方式的识别。在自适应OFDM(正交频分复用)信号产生的基础上,提出了一种新型调制识别算法,并分析了仿真参数对算法性能的影响。研究和仿真结果表明:该算法不仅性能稳定,而且可以有效地识别自适应OFDM信号的调制方式。该算法复杂度低,适合于实时处理。The author studies recognition of signal modulation mode in OFDM system according to the diversity of communication signal types and modulation modes and the complexity of wireless signal channel environment. Based on producing OFDM signals,the author puts forward a new kind of modulation recognition algorithm and analyzes the influence of simulation parameter over this algorithm function. Research and result of simulation show that this functionally stable algorithm can be used to recognize modulation modes of the OFEM signals, and it is suitable for real - time processing because of its low complexity.

关 键 词：自适应OFDM 调制识别 欧氏距离 算法仿真 

分 类 号：TN911.1[电子电信—通信与信息系统]