Abstract: In a sonar system using a large array multielement sonar detector to detect reflected signals sent out by a sonar ping generator, the sent out sonar ping generator sends out varying frequency sonar signals during each ping, where the frequency is neither monotonically increasing or monotonically decreasing.

Abstract: An optical processor that incorporates optical computing in a monolithic, i.e. single unit, structure that can take the place of, or operate as a coprocessor with, traditional processor devices such as vector processors, digital signal processors, RISCs, CISCs, ASICs, FPGAs among others. The optical processor incorporates photonic devices that perform algorithmic functions on optical signals. The optical processor takes one or more incoming digital signals, converts the digital signal into an optical signal, performs the algorithmic function(s) in the optical domain, and then converts the result back into a digital signal, all in a monolithic or single unit structure.