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A frequency Domain based High Resolution Positioning Method using Low Rate ADC in LR-WPAN  

Lee, Won-Cheol (숭실대학교 정보통신전자공학부 통신 및 신호처리연구실)
Park, Woon-Yong (숭실대학교 정보통신전자공학부 통신 및 신호처리연구실)
Hong, Yun-Gi (숭실대학교 정보통신전자공학부 통신 및 신호처리연구실)
Choi, Sung-Soo (한국전기연구원 융합기술연구단)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.2C, 2009 , pp. 145-152 More about this Journal
Abstract
Ultra-wideband communication systems for impulse radio have merits that are possible for either high resolution ranging system or radio determination. Conventionally, in order to accomplish these functions, the rapid analog to digital convertor (ADC) is necessary to apply radio determination system operating in time domain. However, considering that low rate - wireless personal area network (LR-WPAN) aims to low-cost hardware implementation, the expensive ADC converting GHz sampling per second is not appropriate. So, this paper introduces the high resolution ranging system operating in frequency domain with using low sampling rate ADC, and a new non-coherent ranging scheme utilizing analog Frequency Modulation (FM) mode for the frequency domain transformation. To verify the superiority of the proposed ranging algorithm working in frequency domain, the suggested IEEE 802.15.4a TG channel model is used to exploit affirmative features of the proposed algorithm with conducting the simulation results.
Keywords
UWB ranging; Low Rate ADC; LR-WPAN; TDOA; MUSIC;
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  • Reference
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