提高超宽带冲激无线电信号抗单频干扰能力的参数选择方法

System parameters selection to improve the performance of ultra wideband impulse radio in presence of single-tone jamming

针对三种超宽带冲激无线电信号(TH-PPM、TH-PAM和DS-UWB)在强单频干扰下的存在误码率恶化的情况,通过理论分析和计算机仿真验证,分析了影响超宽带冲激无线信号抗单频干扰能力的主要系统参数,提出了提高三种超宽带无线电信号抗单频干扰能力的系统参数选择方法。采用这种参数选择方法,可主动降低甚至消除干扰信号对超宽带冲激无线电信号的干扰,降低超宽带冲激无线电接收机设计的复杂性。

Aiming at the performance deterioration of ultra wideband (UWB) impulse radio time-hopping pulse-position-modulation (TH-PPM), time-hopping pulse-amplitude-modulation (TH-PAM) and direct sequence ultra wideband (DS-UWB) in the presence of single-tone jamming, the UWB system parameters that influence the anti-jamming performance were investigated by both theoretical analysis and simulation. Several methods for ultra wideband system parameter selection were given in this paper to improve the anti-jamming performance of UWB radio. Using these parameters selections, the impact incurred by single-tone jamming can be decreased dramatically and even eliminated with reasonable system parameter selection, and the ultra wideband receiver complexity can be reduced.