| 摘要: |
| 对FH-GMSK（Frequency Hopping-Gaussian Filtered Minimum Shift Keying）通信
系统进行了研究，分析了GMSK调制的基本原理，给出了该跳频通信系统的模型。分析了对FH
-GMSK通信系统实施跟踪干扰采用的调制方式，在Simulink平台下搭建了FH-GMSK通信系统和
各种调制模式下跟踪干扰模块。分析了不同BT值下该系统的误码率性能。仿真结果表明，随
着信噪比的增加，未受跟踪干扰时，误码率逐渐降低，在跟踪干扰下误码率有一定的下降，
但始终保持在0.3以上；采用不同调制的跟踪干扰中，2FSK调制干扰效果最佳，MSK和GMSK调
制次之，FM调制效果最差。 |
| 关键词: 跳频通信 高斯滤波最小频移键控 跟踪干扰 调制方式 |
| DOI： |
|
| 基金项目: |
|
| Follower Jamming Performance Analysis of Different Modulation Modes in a GMSK Frequency-hopping Communication System |
| YAN Yun-bin,QUAN Hou-de,CUI Pei-zhang |
| () |
| Abstract: |
| The FH-GMSK communication system is researched, the bas
ic principle of GMSK modulation is analysed and the model of the FH-GMSK communi
cation system is given.The modulation mode of follower jamming to t
he FH-GMSK communication system is analysed,and the FH-GMSK communication system
an
d follower jamming module in different modulations are simulated by Simulink.
The bit error rate(BER) under the different BT is given.The simulation results
show
that, with the increase of SNR, the BER is gradually decreased w
hen the follower jamming does not exist. On the contrary, when the follower jamm
in
g is completed, the BER is decreased but kept above 0.3.W
hen the follower jamming adopts different modulations，the 2FSK modulation p
rovides the most effective hedge, the MSK and GMSK modulation are placed in the
middle, the FM modulation performs worse. |
| Key words: frequency-hopping communication GMSK follower jamming mod
ulation mode |
《电讯技术》编辑部 