Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1975-02-28
1976-05-04
Stern, Ronald J.
Optics: measuring and testing
Range or remote distance finding
With photodetection
356109, G03H 114
Patent
active
039543226
ABSTRACT:
The Doppler frequency shift of coherent light reflected from moving objects is used to obtain resolution much greater than the classical limit for imaging systems. The Doppler information is processed by using the temporal and spatial filtering properties of modulated reference wave holograms formed with a reference wave having a range of frequencies across it matching the Doppler frequencies received from the moving object.
REFERENCES:
patent: 3661437 (1972-05-01), Mottier
patent: 3778130 (1973-12-01), Waters
Dyes et al., Applied Optics, Vol. 9, No. 5, May 1970, pp. 1105-1112.
Kurtz, NASA Tech. Brief, B73-10434, Dec. 1973.
Aleksoff Carl C.
Christensen Charles R.
Edelberg Nathan
Gibson Robert P.
Sims Robert C.
Stern Ronald J.
The United States of America as represented by the Secretary of
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