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An Adaptive MTI for Weather Clutter Suppression

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1 Author(s)
Short, Robert D. ; Sperry Research Center

A digital realization of an adaptive clutter-locking loop is presented. The purpose of the loop is to estimate the mean Doppler frequency of the clutter. The clutter spectrum is then shifted toward the zero Doppler by this estimate. A fixed moving target indicator (MTI) canceler following the loop suppresses the shifted clutter. Experimental simulations illustrate the feasibility of the loop. Results indicate that the proposed canceler works significantly better than a fixed canceler, while not as well as the 10-pulse moving target detector (MTD) processor. However, the complexity of the MTD is significantly more than the relatively simple adaptive processor presented here.

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Aerospace and Electronic Systems, IEEE Transactions on  (Volume:AES-18 ,  Issue: 5 )