Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2010, Vol. 33 ›› Issue (6): 107-111.doi: 10.13190/jbupt.201006.107.zhangj

• Reports • Previous Articles     Next Articles

CodeOrthogonalized TransmittedReference Chirp UltraWideband  System with Active Spectrum Compressed Structure

  

  • Received:2009-11-04 Revised:2010-05-20 Online:2010-12-28 Published:2011-01-07

Abstract:

Based on the transmittedreference impulse radio ultrawideband (IRUWB) system, a new codeorthogonalized transmittedreference chirp UWB system is proposed to meet the needs of UWB application with increasing transmission distance. Referring to the dechirp methods in radar system, it designs an active spectrum compressed structure for the receiver. Analysis and simulation show that this system has both the advantages of transmittedreference IRUWB systems and chirpUWB systems. Furthermore, the analog matched filter and highspeed analogtodigital converter are not required, but facilitate system miniaturization, low powerconsumption and integration design.

Key words: ultrawideband, chirp, transmittedreference, orthogonal code, active spectrum compression