Source localization using a moving receiver and noisy TOA measurements
SIGNAL PROCESSING(2016)
摘要
This paper considers using a moving receiver to locate a stationary source that transmits periodically with an unknown period. The receiver records the time of arrivals (TOAs) of the intercepted signals for source localization. A new two-step localization algorithm is developed. Its first step ignores the signal propagation delay and identifies the signal period using existing period estimation techniques. Sufficient conditions for correctly relating the TOA measurements are established. The second step of the new algorithm jointly estimates the source position and the signal period using an iterative maximum likelihood estimator. Simulation results demonstrate the effectiveness of the newly proposed technique.
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关键词
Source localization,Time of arrival (TOA),Period estimation,Conditional Cramér–Rao lower bound (C-CRLB)
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