Dual use sensor design for enhanced spatioradiometric performanc

Details Dual use sensor design for enhanced spatioradiometric performanc Dual use sensor design for enhanced spatioradiometric performanc

1996-01-23

1997-10-28

Le, Que

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502081, 348295, H01J 314

Patent

active

056820348

ABSTRACT:
A scanning detection system. The inventive system includes a detector arrangement for scanning a target surface over a predetermined angular range and providing a plurality of sampled signals in response thereto. The detector outputs are sampled and aggregated to provide a first output having a constant spatial resolution independent of the scan angle of the detector. The detector outputs are also aggregated to provide a second output having fine radiometric sensitivity. In a specific implementation, constant resolution is achieved by co-adding a variable number of adjacent detector samples where the number of adjacent samples co-added is dependent on the scan angle. Fine radiometric sensitivity is achieved by co-adding a fixed number of adjacent samples. Thus, dual capabilities of constant resolution and high sensitivity are achieved in a cost effective manner.

REFERENCES:
patent: 4280141 (1981-07-01), McCann et al.
patent: 5371358 (1994-12-01), Chang et al.

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