基于决策论判决法的调制信号自动识别  

Automatic Recognition of Modulated Signals based on Decision Method

作　　者：何彬[1] 谷广宇 

机构地区：[1]装甲兵工程学院信息工程系,北京100072

出　　处：《通信技术》2014年第1期13-17,共5页Communications Technology

摘　　要：调制方式是通信过程中的重要参数,快速检测和识别通信信号的调制方式在通信领域,尤其是军事通信领域,有着极其广泛的应用。对判决法自动检测和识别信号调制方式的经典算法进行了改进,以提高对日常通信训练中常用的USB、LSB以及FM、2FSK、4FSK信号的识别速度及准确率,并给出了该算法的实现流程。经仿真验证,改进算法能在对其他8种常用调制方式识别效果影响不大的前提下,提高对SSB、FM、FSK信号的识别效果。Modulation is an important parameter in the process of communication. To rapidly detect and identify the modulation mode of communication signal plays a critical role in the fields of communication, particularly military communication, and this technology is thus widely applied in these fields. The classical decision-based algorithm for automatic detection and recognition of signal modulation mode is im- proved, thus to raise the recognition speed and accuracy of signals commonly used in daily communication training,such as USB, LSB and FM, 2FSK, 4FSK. The implementation process of this algorithm is given. Simulation indicates that, the improved algorithm could acquire a better recognition effect of SSB, FM, FSK, while having little influence on recognition effect of the other 8-signal modulation mode.

关 键 词：调制方式 自动识别 判决法 

分 类 号：TN911[电子电信—通信与信息系统]