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A maximum likelihood-based code-aided joint carrier phase estimation and ambiguity resolution algorithm is proposed for coded amplitude and phase shift keying (APSK) signals. The proposed estimator iteratively uses the a posteriori probability of coded bits obtained from the channel decoder to improve the performance of phase estimation and ambiguity resolution. Two initialization schemes are employed...
This paper studies TOA-based localization of a passive target with one transmitter and multiple distributed receivers. Different from the existing studies which assume synchronous or quasi-synchronous network, we consider a more practical case in which all the receivers have different time offsets to the transmitter. To tackle the multi-dimensional optimization problem in the maximum likelihood estimation,...
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