Estimation of Clock Drift in Symbol Duration for High Precision Ranging Based on Multiple Symbols of Chirp Spread Spectrum
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概要
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A new estimation algorithm of clock drift in symbol duration for high precision ranging, based on multiple symbols of chirp spread spectrum (CSS) is proposed. Since the permissible error of a crystal oscillator in CSS is relatively high given the need to lower device costs, ranging results are perturbed by clock drift. We establish the phenomenon of clock drift in multiple symbols of CSS, and estimate the clock drift in symbol duration based on phase difference between adjacent symbols. The proposed algorithm is analyzed, and verified by Monte Carlo simulations.
著者
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KIM Yeong-Sam
Department of Electronics and Computer Engineering, Hanyang University
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JANG Seong-Hyun
Department of Electronics and Computer Engineering, Hanyang University
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YOON Sang-Hun
Department of Electronics and Computer Engineering, Hanyang University
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CHONG Jong-Wha
Department of Electronics and Computer Engineering, Hanyang University
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