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The Journal of The Korea Institute of Intelligent Transport Systems Vol.5 No.1 pp.45-54
주파수 선택적 채널에서의 TR, DTR과 PRM UWB 통신 시스템 성능분석
Performance analysis of TR, DTR and PRM UWB systems in frequency selective channel
Abstract
The UWB signal distortion in frequency selective channel has made it difficult to implement the channel estimator and the synchronizer of the UWB receiver. In this paper, we examine the performances of TR(Transmitted Reference) and DTR(Differential TR) UWB which use either reference pulse or differential method to estimate the channels. we also propose a FSK-based PRM(Pulse Repetition Modulation) UWB system as an another form of UWB system which is advantageous in frequency selective channel. Finally, resorting to statistical analysis, we examine the noise effect due to noisy reference at an auto-correlation(AcR) receiver. moreover, SNR dependance of the integration length in the AcR receiver is also investigated.
