脉冲超宽带在AWGN中的误码率性能分析

Performance Analysis of Bit Error Rate for Impulse Ultra Wideband in the AWNG

针对跳时超宽带(TH-UWB)和直接序列超宽带(DS-UWB)在加性高斯白噪声干扰下(AWGN)的误码率性能进行了分析,并对超宽带信号脉冲位置调制(PPM)和脉冲幅度调制(PAM)的误码率做了比较。通过理论分析和软件仿真,结果说明在加性高斯白噪声干扰下,对于TH-UWB调制和DS-UWB调制,PAM的误码率性能都优于PPM,并在此基础上给出了几种方法来提高超宽带脉冲信号抗加性高斯白噪声的能力。

Aiming at Time- Hopping Ultra Wideband（TH -UWB） and Driect- Sequence Ultra Wideband （DS- UWB） in the Additive White Gaussian- Noise （AWGN） jamming,an analysis is processed for the Bit Error Rate （BER） performance. and then the bit error rate between Pulse Position Modulation（PPM） and Pulse Amplitude Modulation（PAM） in the ultra wideband singal is compared. Bying both theoretical analysis and software simulaton,the result explains that the bit error rate performanece of pulse amplitude modulation is superior to the pulse position modulation＇ s for both the time - hopping ultra wideband and the direct- sequence ultra wideband. On the basis of it,some methods are given for the ultra wideband impulse signal to improve the ability of resisting to the additive white gaussian - noise.