Finite-Resolution Digital Receiver for UWB TOA Estimation

Author

Sun, Fei ; Yin, Huarui ; Wang, Weidong

Author_Institution

Dept. of Electr. Eng. & Inf. Sci., USTC, Hefei, China

Volume

16

Issue

1

fYear

2012

fDate

1/1/2012 12:00:00 AM

Firstpage

76

Lastpage

79

Abstract

In this paper, the effect of finite-resolution analog-to-digital converter (ADC) quantization on ultra-wideband (UWB) time of arrival (TOA) estimation is investigated. The deflection criterion is introduced for optimizing the nonuniform quantization. The training based TOA estimation algorithm using maximum likelihood (ML) rule is proposed. Compared with the full-resolution and energy-detection (ED) estimators via simulation, we demonstrate that our training based 3-level quantization scheme is satisfactory because it can approach a full-resolution estimator while decreasing the complexity greatly.

Keywords

analogue-digital conversion; maximum likelihood estimation; quantisation (signal); time-of-arrival estimation; ultra wideband communication; ADC; ML; UWB TOA estimation; energy-detection estimators; finite-resolution analog-to-digital converter quantization; finite-resolution digital receiver; full-resolution estimator; maximum likelihood; training based 3-level quantization scheme; ultra-wideband; Complexity theory; Maximum likelihood estimation; Quantization; Receivers; Signal to noise ratio; Time of arrival estimation; Training; IR-UWB; TOA; finite-resolution; quantization;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2011.111611.112074

Filename

6093918