Calculation of signal-to-noise ratio of a monostatic bidirectional laser reflectometer

Zu-Han Gu; Zong Qi Lin; Jeffrey A. Estep

doi:10.1117/12.140710

12 February 1993 Calculation of signal-to-noise ratio of a monostatic bidirectional laser reflectometer

Zu-Han Gu, Zong Qi Lin, Jeffrey A. Estep

Proceedings Volume 1753, Stray Radiation in Optical Systems II; (1993) https://doi.org/10.1117/12.140710
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

The design of laser radars and the determination of the detectability of various vehicles require accurate data for the monostatic reflectivity of surface materials to far-field laser illumination at many different wavelengths. Monostatic bidirectional reflectance can be measured with an interferometric reflectometer using a homodyne arrangement in which the signal is developed from the Doppler shift of light reflected from a slowly moving target. Such an instrument has been successfully developed for far-field measurements of target materials. In this paper we will present recent theoretical analysis of the speckle statistics and the signal over noise ratio of the monostatic bidirectional reflectometer. Calculation is also compared with experimental results.

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Zu-Han Gu, Zong Qi Lin, and Jeffrey A. Estep "Calculation of signal-to-noise ratio of a monostatic bidirectional laser reflectometer", Proc. SPIE 1753, Stray Radiation in Optical Systems II, (12 February 1993); https://doi.org/10.1117/12.140710

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KEYWORDS

Signal to noise ratio

Speckle

Homodyne detection

Interference (communication)

LIDAR

Doppler effect

Reflectometry

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