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Joint estimation of target reflectivity and local oscillator phases in a MIMO radar system with distributed assets

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2 Author(s)
Changyu Sun ; Dept. of Electr. & Comput. Eng., Michigan Technol. Univ., Houghton, MI, USA ; Fuhrmann, D.R.

Synchronization across multiple distributed apertures is the standard assumption in proposed multiple-input multiple-output (MIMO) radar systems. However, perfect phase synchronization is difficult to realize. Assuming frequency synchronization, probably through a GPS system or reception of a beacon, we address the issue of unknown LO phases of local oscillators in a MIMO radar system, and consider the problem of joint estimation of target reflectivity and LO phases. The bistatic target reflectivity is subject to a complex normal prior distribution given by a multiple point scatterer model and LO phases are assumed independent and identically distributed random variables.

Published in:

Signals, Systems and Computers (ASILOMAR), 2010 Conference Record of the Forty Fourth Asilomar Conference on

Date of Conference:

7-10 Nov. 2010