基于维特比算法的VMSK/2译码方式研究  

Research on VMSK/2 Decoding Mode Based on Viterbi Algorithm

作　　者：曹艳[1] 王红星[1] 

机构地区：[1]海军航空工程学院,山东烟台264001

出　　处：《遥测遥控》2010年第6期38-41,共4页Journal of Telemetry,Tracking and Command

摘　　要：随着无线通信技术的快速发展,提高频谱利用率已成为一项重要研究课题。介绍在超窄带可变相移键控(VPSK)和甚小频移键控(VMSK)调制方式的基础上提出的兼有两者优点的1/2甚小频移键控(VMSK/2)编码调制方式,并提出基于维特比算法的VMSK/2译码方法。仿真结果显示,所提译码方法能够有效地降低误码率,提高无线通信系统的性能。With the rapid development of wireless communication technology,the spectrum efficiency of wireless communication technology has become an important research topic.This paper describes the ultra narrow band Variable Phase Shift Keying(VPSK) and Very Minimum Shift Keying(VMSK),and introduces the VMSK/2 coded modulation,which has the advantages of both VPSK and VMSK.Then a VMSK/2 decoding mode based on the Viterbi algorithm is put forward.Simulation results show that the proposed method can effectively reduce the bit error rate,and improve the wireless communication system performance.

关 键 词：超窄带 1/2甚小频移键控 维特比算法 

分 类 号：TN911.3[电子电信—通信与信息系统]