摘要
为提高跳频组网效率,提出一种基于碰撞跳频码已知的同频干扰消除方案。在分析跳频组网同频干扰对跳频通信影响的基础上,采用在碰撞跳频码调制空码元的方式,避免频点碰撞,消除同频干扰,并对该方案应用于快跳系统时,进行优化以降低信息传输时延。结果表明:该方案能够有效消除跳频码碰撞引起的同频干扰,降低信息误码率,并通过合理的参数设置,可以较好地平衡快跳系统信息传输的有效性和可靠性。
To improve the efficiency of frequency-hopping(FH) in the communication network,a scheme for eliminating co-channel interference was proposed based on the known hitting of FH codes. The impact of co-channel interference to FH communication network was analyzed,then frequency hit was avoided and co-channel interference was eliminated by way of modulating empty code on hitting FH codes. The scheme was optimized to reduce transmission delay when it was used in fast FH system. The results show that the scheme can eliminate co-channel interference caused by the hit of FH codes with a lower error rate. Validity and reliability of information transmission are balanced effectively through setting the appropriate parameters in fast FH system.
出处
《中国测试》
CAS
北大核心
2014年第5期115-118,共4页
China Measurement & Test
关键词
跳频组网
频率碰撞
同频干扰
快跳系统
FH communication networking
frequency hit
co-channel interference
fast FH system
