A novel auto-reference ultra-wideband receiver scheme

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  • School of Electronics and Information Engineering, Xi′an Jiaotong University, Xi′an 710049, China;

Published date: 05 Sep 2007

Abstract

A new auto-reference (AR) transmit-receive scheme and a corresponding group decision algorithm on the generalized likelihood ratio testing (GLRT) principle is proposed in this paper to overcome the drawbacks of the power inefficiency and the high noise vulnerability in transmitted-reference (TR) ultra-wideband (UWB) systems. A partly overlapped detection window structure is introduced in which the decided data frames are regarded as the reference signal so that energy and time resources in the reference frame are saved and full-rate data transmission is achieved. Differential coding was utilized to solve the error propagation problem introduced by the overlapped detection windows. The group decision algorithm on the GLRT principle was utilized to estimate the correlation template through all data frames in detection windows and could offer better noise suppression. Simulation results reveal that the AR scheme with its decision algorithm outperforms the conventional and other modified TR schemes in generalized signal-to-noise ratio (SNR).

Cite this article

LIAO Xuewen, ZHU Shihua, ZENG Erlin . A novel auto-reference ultra-wideband receiver scheme[J]. Frontiers of Electrical and Electronic Engineering, 2007 , 2(3) : 307 -311 . DOI: 10.1007/s11460-007-0057-0

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