Acceleration-based Dopplerlet transform-Part I: Theory

Authors:
Hongxing Zou;Shiji Song;Zhixin Liu;Yongqiang Chen;Yanda Li
Affiliations:
Department of Automation, Tsinghua University, Beijing 100084, China;Department of Automation, Tsinghua University, Beijing 100084, China;Department of Mathematical Sciences, Tsinghua University, Beijing 100084, China;Institute of Electronics, The Chinese Academy of Sciences, Beijing 100080, China;Department of Automation, Tsinghua University, Beijing 100084, China
Venue:
Signal Processing
Year:
2008

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Abstract

Steady-motion-based Dopplerlet transform has been recently proposed and applied to the estimation of range and speed of moving sound source. In this paper, we develop a new Dopplerlet by introducing acceleration into its definition. Compared with the steady-motion-based Dopplerlet, the acceleration-based Dopplerlet can simultaneously exploit the information of range, speed and acceleration of a moving sound source and can better capture the true time-varying nature of the Doppler-like signals. Part I concerns the fundamentals of the proposed transform, while Part II is devoted to the implementations and applications.