TY - JOUR
T1 - Blind high resolution localization and tracking of multiple frequency hopped signals
AU - Liu, Xiangqian
AU - Sidiropoulos, Nicholas D.
AU - Swami, Ananthram
PY - 2001
Y1 - 2001
N2 - This paper considers the problem of blind localization and tracking of multiple frequency-hopped spread-spectrum (FHSS) signals using an antenna array, without knowledge of hopping patterns. We first identify a hop-free subset of data by discarding high-entropy spectral slices from the spectrogram, then perform low-rank decomposition of four-way data generated by capitalizing on both spatial and temporal shift invariance for high resolution Direction of Arrival (DOA) recovery. After MMSE beam-forming, a dynamic programming approach is developed for joint ML estimation of signal frequencies and hopping instants for signal user tracking.
AB - This paper considers the problem of blind localization and tracking of multiple frequency-hopped spread-spectrum (FHSS) signals using an antenna array, without knowledge of hopping patterns. We first identify a hop-free subset of data by discarding high-entropy spectral slices from the spectrogram, then perform low-rank decomposition of four-way data generated by capitalizing on both spatial and temporal shift invariance for high resolution Direction of Arrival (DOA) recovery. After MMSE beam-forming, a dynamic programming approach is developed for joint ML estimation of signal frequencies and hopping instants for signal user tracking.
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M3 - Conference article
AN - SCOPUS:0035574835
SN - 1058-6393
VL - 2
SP - 1089
EP - 1093
JO - Conference Record of the Asilomar Conference on Signals, Systems and Computers
JF - Conference Record of the Asilomar Conference on Signals, Systems and Computers
T2 - 35th Asilomar Conference on Signals, Systems and Computers
Y2 - 4 November 2001 through 7 November 2001
ER -