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Target localization and velocity estimation methods for frequency-only MIMO Radars

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2 Author(s)
Yilmaz Kalkan ; Department of Electrical and Electronics Engineering, Middle East Technical University, Ankara, TURKEY ; Buyurman Baykal

Target localization and the velocity estimation methods are proposed for frequency-only MIMO Radar with widely separated stations. For the target localization, time of arrival (TOA), angle of arrival (AOA) and frequency of arrival (FOA) informations can be used in cooperation. When the time resolution of the transmitted signals is not enough or good,i.e.; unmodulated CW radar, we can not rely on the TOA information to localize the target. On the other hand, if the frequency resolution of the transmitted signals is enough, only received frequencies can be used for finding the position of the target. Localization of a moving, non-maneuvering target is possible by using the Doppler-shift measurements in MIMO radar systems. This is a nonlinear problem and it can be solved by grid searching. After defining suitable cost funtion for the grid search, the desired area can be searched grid by grid to find the position of the target in 2D space. After target positioning is achieved, velocity of the target can be found by using the predefined cost function.

Published in:

2011 IEEE RadarCon (RADAR)

Date of Conference:

23-27 May 2011