Method for optical sensing

Details Method for optical sensing Method for optical sensing

2005-02-01

2005-02-01

Gregory, Bernarr E. (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C356S003100, C356S004100, C356S343000

Reexamination Certificate

active

06850314

ABSTRACT:
A method for determining optical properties of a target, using a plurality of transmitters for transmitting signals at the target, and a plurality of receivers for detecting reflected signals from the target, comprises the steps of: a) transmitting radiation signals with a plurality of wavelengths at the target; b) detecting trace reflected radiation signals from the target; c) modulating the plurality of transmitters with a waveform for generating transmitter modulation codes; d) mixing the transmitter modulation codes with the trace reflected radiation signals to generate total signals; e) transmitting the total signals at the target; f) detecting reflected total signals from the target; g) digitizing the reflected total signals with an analog-digital converter to generate digitized signals; h) integrating the digitized signals with decoding functions to extract individual signals from the total signals; and i) determining the optical properties of the target from the individual signals.

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