FMCW 3-D LADAR imaging systems and methods with reduced...

Details FMCW 3-D LADAR imaging systems and methods with reduced... FMCW 3-D LADAR imaging systems and methods with reduced...

2011-07-26

2011-07-26

Tarcza, Thomas H (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

Reexamination Certificate

active

07986397

ABSTRACT:
A method for frequency modulated continuous wave LADAR imaging is provided. The method comprises the steps of generating a chirped laser signal and a constant-frequency laser signal, forming a target laser signal from the chirped laser signal and the constant-frequency laser signal and forming a local oscillator laser signal from the chirped laser signal and the constant-frequency laser signal. The method further comprises delaying or frequency shifting the local oscillator laser signal and directing the target laser signal to a target. The method further comprises combining a returned signal received from the target with the delayed or frequency shifted local oscillator laser signal to form a combined received signal, and capturing the combined received signal with a plurality of image sensors. The method further comprises performing a nonlinear operation on the captured combined received signal and Fourier transforming the captured combined received signal to determine a range corresponding to each of the plurality of image sensors in the imaging device.

REFERENCES:
patent: 7280186 (2007-10-01), Ionov
patent: 2007/0171367 (2007-07-01), Sebastian et al.
SU320MSW-1.7RT Indium Gallium Arsenide Snapshot MiniCamera with Windowing Operation Manual, Doc. No. 4110-0046 Rev. C, Aug. 13, 2004, p. 30.
Van Trees, Harry L., “Detection, Estimation, and Modulation Theory: Part III Radar-Sonar Signal Processing and Gaussian Signals in Noise,” p. 299, John Wiley & Sons, New York, 1971.
Jaquez, John A., et al., “Spectral Reflectance of Human Skin in the Region 0.7-2.6 μ,” J. Appl. Physiol., Nov. 1955; 8: 297-299.
Deley, Gary W., “Radar Handbook”, Ch. 3, pp. 3-11, McGraw Hill, 1970.

Affiliated with

Also associated with

Rating

FMCW 3-D LADAR imaging systems and methods with reduced... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with FMCW 3-D LADAR imaging systems and methods with reduced..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FMCW 3-D LADAR imaging systems and methods with reduced... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2625686