期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Generation of orthogonal UWB shaping pulses based on compressed chirp signal 被引量:5
1
作者 che shu-liang ZHANG Hong-xin +1 位作者 LU Ying-hua HE Peng-fei 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2007年第2期99-102,共4页
This study investigates a novel method to numerically generate orthogonal ultrawide band (UWB) shaping pulses based on compressed chirp signal. First, a pulse template with less than 1 ns duration time, which is use... This study investigates a novel method to numerically generate orthogonal ultrawide band (UWB) shaping pulses based on compressed chirp signal. First, a pulse template with less than 1 ns duration time, which is used to construct a Hermitian matrix, is produced with a compressed chirp pulse. Sub-nanosecond orthogonal pulses are then generated for UWB by using the Hermitian matrix eigenvectors. The simulation results show that the power spectral density distribution of the UWB shaping pulses met the constraint of Federal communications commissions (FCC) spectral mask. The shaping pulses not only have higher spectrum utilization ratio and very short time duration but also have excellent autocorrelation and cross-correlation properties, which is an advantage to reduce the interference between multiusers. Especially, a method to produce sub-nanosecond orthogonal UWB shaping pulses by using a relatively longer duration chirp signal is presented. 展开更多
关键词 UWB shaping pulse spectrum utilization ratio interference between multiusers
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部