This paper considers the use of spatio-temporal adaptive array processing in over-the-horizon radar (OTHR) and airborne radar applications in order to remove nonstationary multipath interference, known as "hot clutter". Since the spatio-temporal properties of hot clutter cannot be assumed constant over the coherent processing interval (CPI), conventional adaptive techniques fail to provide effective hot-clutter mitigation without simultaneously degrading the properties of the backscattered radar signals, known as "cold clutter". The approach presented incorporates multiple "stochastic" (data-dependent) constraints to achieve effective hot-clutter suppression, while maintaining distortionless output cold-clutter post-processing stationarity.
Stochastic-constraints method in nonstationary hot-clutter cancellation. I. Fundamentals and supervised training applications
IEEE Transactions on Aerospace and Electronic Systems ; 34 , 4 ; 1271-1292
1998-10-01
2320585 byte
Article (Journal)
Electronic Resource
English
Adaptive Cancellation Method for Geometry-Induced Nonstationary Bistatic Clutter Environments
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