摘要
设计有效的高速跳频检测接收方案是Link-16信号检测接收的基础,基于多通道辐射计架构给出了一种Link-16信号的跳频检测接收方法。通过详细分析Link-16的通信体制及其信号的高速跳频特性,针对直接将多通道辐射计引入Link-16信号检测存在的不足,设计了新的自适应门限算法和判决规则,提出了简单可行的通道检测结果修正准则,最终实现了基于多通道辐射计的Link-16信号检测接收。仿真结果表明:该检测方案的门限算法对信号幅度有较强的适应能力,使得通道判决结果不受背景噪声影响,在低信噪比条件下,可有效地解决Link-16信号检测问题,从而验证了本方案的有效性。
Design of an effective detection scheme for high-speed frequency-hopping signal is the groundwork for Link-16 signal detection.This paper presents a detection scheme based on multichannel radiometer structure.The communication mechanism and high-speed FH characteristic of Link-16 are analyzed in detail.Then,to surmount the deficiencies caused by directly applying multichannel radiometer in Link-16,this paper designs a new adaptive threshold algorithm and a new judicative rule,presents a feasible modification rule for the channel detection results and finally based on multichannel radiometer achieves the Link-16 signal detection.The simulation results of this scheme show that the threshold algorithm of this detection scheme has a good adaptability to the amplitude of input signal,which can be used to effectively solve the problem of Link-16 signal detection under low SNR and to make the channel detection results independent of the background noise.
出处
《空军工程大学学报（自然科学版）》
CSCD
北大核心
2012年第1期63-67,共5页
Journal of Air Force Engineering University(Natural Science Edition)
基金
国家自然科学基金资助项目(60971100)
陕西省自然科学基础研究计划资助项目(2010JM8037
2010JQ8003)
