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Analysis of Ranging Performance According to Analog Front End Characteristics in a Noncoherent UWB System  

Kim, Jae-Woon (숭실대학교 정보통신전자공학부 통신 및 정보처리 연구실)
Park, Young-Jin (한국전기연구원 전기정보망연구센터)
Lee, Soon-Woo (한국전기연구원 전기정보망연구센터)
Shin, Yo-An (숭실대학교 정보통신전자공학부 통신 및 정보처리 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.35, no.1C, 2010 , pp. 77-86 More about this Journal
Abstract
In this paper, we present a noncoherent IR-UWB (Impulse Radio-Ultra Wide Band) ranging system with an AFE (Analog Front End) composed of a simple integrator and an 1-bit ADC (Analog-to-Digital Converter), and define AFE characteristics affecting the ranging performance. This system is realistic and easy to implement, since the integrator simply accumulates signal energies and the simple 1-bit ADC is applied instead of the multi-bit ADCs for coherent IR-UWB systems. On the other hand, its ranging accuracy is largely affected channel environments such as noise, multipath fading and so on, since the noncoherent receiver simply squares and integrates the received signals. However, despite these practical importances, there are few conventional researches on the performance analysis according to AFE characteristics in IR-UWB ranging systems. To this end, we analyze in this paper ranging performance according to AFE characteristics for the noncoherent IR-UWB ranging system in various wireless channel environments, and through these results we also present system parameters to be considered in UWB hardware designs.
Keywords
UWB; Ranging; AFE; ADC; ToA;
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Times Cited By KSCI : 1  (Citation Analysis)
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