The principle of representing continuous complex-valued functions by their decomposition into three positive-valued ones is proposed for the generation of complex reference functions for a joint transform correlator. Three basic approaches involving coherent and incoherent superposition of the component functions are analyzed. The potentials and limitations of the techniques are discussed.
© 1994 Optical Society of America
Rafael Piestun, Joseph Rosen, and Joseph Shamir, "Generation of continuous complex-valued functions for a joint transform correlator," Appl. Opt. 33, 4398-4405 (1994)