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Code-blind reception of frequency hopped signals over multipath fading channels

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3 Author(s)
Liu, Xiangqian ; Dept. of Electr. & Comput. Eng., Louisville Univ., KY, USA ; Sidiropoulos, N.D. ; Swami, A.

A noncoherent reception scheme is developed for joint blind estimation of hop timing, hop frequency and direction-of-arrival (DOA) of frequency hopped signals over multipath fading channels. Based on the principle of dynamic programming and 2-dimensional harmonic retrieval, the method does not require knowledge of users' hop codes, and it remains operational even with multiple (unknown) hop rates, frequency offsets, and asynchronism. The model is based on FSK, but the scheme is also evaluated with GMSK modulation and shown to be robust.

Published in:

Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on  (Volume:4 )

Date of Conference:

6-10 April 2003

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