摘要
跳频通信体制以其较好的抗干扰和低截获性能,在军事通信中有着广泛的应用,其中跳频同步是该体制的关键技术之一。为提高跳频通信系统抗干扰性能,提出了一种具有自适应抗干扰能力的跳频同步方案,并给出了系统框图及关键算法分析及性能讨论。最后仿真结果表明,该同步方案具有抗干扰能力强,捕获概率高,虚警概率低的特点,而且在保证同步时间要求的前提下,具有根据信道特性,自适应地调整抗干扰门限的能力。
Frequency Hopping（FH） system is very popular in the military communication because of its high anti-jamming and low detective probability performance.Synchronization is one of the key technologies for FH communication system.Based on the main requirement of abrupt FH system,a synchronization scheme with adaptive anti-jamming ability is presented.The key algorithm and performance are analyzed.Finally,the simulation result shows that the discussed synchronization method not only has the feature of high anti-jamming,high capture probability and low detective probability,but also can adjust the anti-jamming threshold as the changes of the channel with the satisfaction of synchronization catching time.
出处
《现代电子技术》
2011年第15期19-22,共4页
Modern Electronics Technique
关键词
跳频同步
捕获概率
虚警概率
抗干扰
自适应
frequency hopping synchronization
capture probability
detective probability
anti-jamming
self-adaptive
