Passive range and azimuth measuring system

E. Ronning; Earl J. Fjarlie

doi:10.1117/12.26096

1 March 1991 Passive range and azimuth measuring system

E. Ronning, Earl J. Fjarlie

Proceedings Volume 1399, Optical Systems in Adverse Environments; (1991) https://doi.org/10.1117/12.26096
Event: Singapore, 1990, -, Singapore

Abstract

The classical rangefinder that uses two telescopes separated by a fixed base distance so as to produce a parallax-angle difference when pointed at a source of interest to determine the range, has been used as the basis of a passive electro-optic range and azimuth finder. The concept, shown in Figure 1, uses: two silicon photodiode focal plane arrays (FPA) each incorporating 256X256 elements (each element being 40 I.tm by 40 tm) , two standard telephoto lenses, two video data formatters (VDF) , two TV monitors for convenience in operating the system (not shown) , two high-speed waveform digitisers, each with a 128 K memory data storage facility, and a host computer driven by algorithms for determining the range and azimuth. The determination takes about six minutes.

Citation Download Citation

E. Ronning and Earl J. Fjarlie "Passive range and azimuth measuring system", Proc. SPIE 1399, Optical Systems in Adverse Environments, (1 March 1991); https://doi.org/10.1117/12.26096

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