Optical backscatter reduction technique

Details Optical backscatter reduction technique Optical backscatter reduction technique

1978-09-05

1981-12-22

Buczinski, S. C.

Ammunition and explosives

Igniting devices and systems

Ignition or detonation circuit

102214, 250214B, 343 7PF, 356 4, F42C 1302, H01J 4014

Patent

active

043065007

ABSTRACT:
An active optical target detecting device is provided for a missile. A transmitter radiates within the optical spectrum. This radiation is subject to scattering by water droplets in the atmosphere which may be due to clouds, fog, rain or other adverse weather conditions. In order to improve the signal-to-noise ratio two receivers that are associated with each transmitter are angularly displaced by equal angles from the transmitter. Hence, each receiver receives only one half of the undesirable backscatter radiation. Therefore, the target may be more readily detected even in the presence of backscatter.

REFERENCES:
patent: 2560265 (1951-07-01), Adler, Jr.
patent: 2925965 (1960-02-01), Pierce
patent: 3413633 (1968-11-01), Lehmann
patent: 3531803 (1970-09-01), Rosen et al.
patent: 3793958 (1974-02-01), Holt et al.
patent: 3913485 (1975-10-01), Holmes et al.
patent: 4005414 (1977-01-01), Goggins, Jr.

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