Giant enhanced backscattering in lidar signatures

Zu-Han Gu; Richard Sam Dummer; Jun Q. Lu; Paul McKenna

doi:10.1117/1.600905

1 February 1996 Giant enhanced backscattering in lidar signatures

Zu-Han Gu, Richard Sam Dummer, Jun Q. Lu, Paul McKenna

Optical Engineering, Vol. 35, Issue 2, (February 1996). https://doi.org/10.1117/1.600905

The design of laser radars and the determination of laser radar signatures of various vehicles require accurate data on the reflectivity of the target materials to far-field laser illumination at many different wavelengths. Modeling software is required that will take the monostatic reflectance data as input and combine this data with geometrical models to develop a laser radar signature. Consideration of enhanced backscattering can be critically important in developing laser radar signatures. This is illustrated by the comparison of two signature models of the same airplane—one developed using bidirectional reflectance measurement data at 2 deg from the retrodirection, and the other developed from monostatic measurement data at true retrodirection. When a reflecting metal substrate is coated with a thin layer of weakly rough dielectric, as is often the case with naturally occurring metal oxides on a parent metal surface, a giant enhanced backscattering peak is observed that will further enhance the lidar signature.

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Zu-Han Gu, Richard Sam Dummer, Jun Q. Lu, and Paul McKenna "Giant enhanced backscattering in lidar signatures," Optical Engineering 35(2), (1 February 1996). https://doi.org/10.1117/1.600905

Published: 1 February 1996

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KEYWORDS

LIDAR

Backscatter

Reflectivity

Data modeling

Dielectrics

Sensors

Scattering

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