Ladar system for detecting objects

Details Ladar system for detecting objects Ladar system for detecting objects

2005-01-18

2005-01-18

Gregory, Bernarr E. (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C356S028500

Reexamination Certificate

active

06844924

ABSTRACT:
A high range resolution ladar includes a chirp generator for producing a chirp signal waveform that is used by a laser diode to propagate a divergent laser light waveform. The reflected light signals from the target are directed to a self mixing detector that is coupled to the chirp generator where the responsivity of the detector varies in accordance with the chirp waveform for converting reflected light signals from the target to electrical signals and for mixing the converted electrical signal with the chirp waveform to produce an output electrical signal whose frequency is proportional to the range to the target. The self-mixing detector includes at least one detector having a semiconductor substrate and first and second electrodes deposited on the substrate and spaced from each other, wherein the first set of electrodes is connected to the chirp generator and the second set of electrodes is connected to a memory for storing a plurality of frames of image data.

REFERENCES:
patent: 4611912 (1986-09-01), Falk et al.
patent: 5020901 (1991-06-01), de Groot
patent: 5608514 (1997-03-01), Stann et al.
patent: 5877851 (1999-03-01), Stann et al.

Affiliated with

Also associated with

Rating

Ladar system for detecting objects does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ladar system for detecting objects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ladar system for detecting objects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3422113