16 December 1989 Discrete Steepest Descent Algorithms And Their Realization On Optical Analog Processors
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Abstract
We consider an analog (linear) heterodyned linear algebraic optical processor for adaptive phased array radar (APAR). Its use in solving the discrete steepest descent (DSD) algorithm is considered. New stability and performance measure expressions are used (that relate the scenario and the processor's accuracy) and their verification is obtained by scenario tests. Extensions to more complex problems by terminating the number of iterations and by matrix preconditioning are discussed and demonstrated.
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Eugene Pochapsky, David Casasent, "Discrete Steepest Descent Algorithms And Their Realization On Optical Analog Processors", Proc. SPIE 0977, Real-Time Signal Processing XI, (16 December 1989); doi: 10.1117/12.948555; https://doi.org/10.1117/12.948555
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KEYWORDS
Antennas

Signal processing

Analog electronics

Interference (communication)

Adaptive optics

Condition numbers

Chemical elements

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