A Random Pulse Phase Jitter Technique for Suppression of Frequency Spikes Associated with UWB Pulse Position Modulation
The power spectral densities of UWB impulse radio systems with pulse position modulation (PPM) consist of both continuous spectra and discrete frequency spikes. These discrete spikes cause interferences to narrowband systems and deny the harmless coexistence of PPM UWB systems and narrowband systems. To suppress these discrete spikes, in this paper, a random pulse carrier phase jitter (PCPJ) technique is presented and applied to PPM UWB signals. Both theoretical analyses and simulations are carried out and the obtained results show that the proposed technique can effectively suppress the frequency spikes, increase the transmitted power, and thus improve the performance of PPM UWB systems.
Aidong Yang Hui Qian Hong Nie Zhizhang (David) Chen Lun Yu
College of Physics & Information Engineering, Fuzhou University, Fuzhou, 350002, China Department of Industrial Technology, University of Northern Iowa, Cedar Falls, Iowa, USA 50614-0178 Department of Electrical and Computer Engineering, Dalhousie University, Halifax, Nova Scotia, Canad
国际会议
南京
英文
1-4
2010-09-20(万方平台首次上网日期,不代表论文的发表时间)