摘要
在Chirp-UWB时延估计中,针对多径导致伪尖峰会影响多径判别及时延估计的问题,文中提出了一种利用双阶段变换积累Chirp信号能量的时延估计方法。仿真实验表明,该方法可以消除伪尖峰的影响从而正确地估计时延,且在低信噪比的条件下仍能工作。
False peaks resulted from multi-path in the chirp-UWB time-delay estimation would influence estimation result. One method which can eliminate the influence is proposed in this paper. It eliminates the influence through accumulating the energy by transformation in two phase. Simulation results show that the method can eliminate the influence of false peaks and estimate the time delay of Chirp signal correctly and it still works with low SNR.
出处
《电子技术应用》
北大核心
2010年第6期130-133,共4页
Application of Electronic Technique
基金
国家863重点项目(2009AA011205)
