Abstract
During the past two decades extensive work on optimum and adaptive array processing has been carried out. This has been motivated especially by the importance of sonar, seismic processing, radar and the evolution of electronics which have made adaptive systems realizable. The purpose of such a system is to distinguish between the wanted signal and unwanted noise. This processing can be done according to some optimality criteria. The success of the processor is highly dependent upon the noise situation, which often is continously varying. An inflexible processor will be optimum for a certain postulated situation only, and this might never occur. However, if the noise situation is changing slowly so that it can be estimated continously, near optimum processing may be achieved. The amount of improvement for such an adaptive system is a function of the average noise situation. The cost of such a system may direct the choice towards suboptimum solutions.
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Gammelsæter, O.B. (1981). Adaptive Beamforming with Emphasis on Narrowband Implementation. In: Bjørnø, L. (eds) Underwater Acoustics and Signal Processing. NATO Advanced Study Institutes Series, vol 66. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-8447-9_24
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DOI: https://doi.org/10.1007/978-94-009-8447-9_24
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