Raytheon Company

Jae H Kyung

David J Gulbransen

Andrew M Kowalevicz

Maurice J Halmos

Benjamin P Dolgin

Gary M Graceffo

Christian M Boemler

Joseph C Marron

Chaffra A Affouda

A sensing system includes a focal plane array, a detector dual-input circuit, a detector selector circuit and a select module. The focal plane array includes a plurality of detectors. The detector dual-input circuit combines outputs from the detectors received at a first input channel without outputs received at a second input channel. The detector selector circuit establishes a first signal path between the detectors and the first input channel and a second signal path between the detectors and the second input channel. The detector selector circuit includes a mask that maps the detectors to a first detector group or a second detector group. Based on the mask designation, the select module connects one or more of the detectors to the first signal path to establish the first detector group and connects one or more of the detectors to the second signal path to establish the second detector group.

Coded aperture focal plane array using all detectors

A method includes providing outgoing optical signals for transmission by a monostatic optical terminal using multiple transmit channels and providing incoming optical signals obtained by the monostatic optical terminal to multiple receive channels. The method also includes using a polarization beam splitter/combiner to combine the outgoing optical signals into a combined outgoing optical signal and to split a combined incoming optical signal into the incoming optical signals. The method further includes using at least one feedback loop to adjust an aim or path of at least one of the outgoing optical signals or at least one of the incoming optical signals. The method may optionally include using an optical element to convert polarizations of the combined outgoing optical signal in order to generate an output signal and to convert polarizations of an input signal in order to generate the combined incoming optical signal.

Monostatic optical terminal supporting multiple independent transmit and receive channels

An apparatus includes a sensor having an array of detectors. The sensor is configured to assign multiple detectors to a detector group corresponding to a block pixel. The sensor is also configured, for each frame of a set of frames, to apply a specified one of a set of mask patterns in order to select outputs of the detectors in the detector group and aggregate the selected outputs of the detectors in the detector group to determine pixel information for the block pixel. The apparatus also includes at least one processor configured to generate the frames using the pixel information for the block pixel, and upscale the portion of the at least one of the frames using the set of mask patterns to identify native pixels within the block pixel.

Foveal compressive upsampling

Optical signal receivers, systems, and methods of operating the same include a non-line of sight optical signal receiver configured to receive and detect a complex modulated optical signal through a non-line of site propagation path from an optical transmitter, comprising an optical resonator configured to receive the complex modulated optical signal through the non-line of sight propagation path, and to convert the complex modulated optical signal to an intensity modulated signal, and a detector configured to convert the intensity modulated signal into an electrical signal, the electrical signal having an amplitude indicative of an intensity of the intensity modulated signal from the optical resonator, and to provide a detected signal.

Method for non-line-of-sight detection of complex optical signals

Methods and apparatus for a sensing system having a focal plane array having an n&#xd7;m array of sensing elements and a single output pixel and a mask to select or deselect ones of the sensing elements in the array to form patterns, wherein the mask forms a part of the focal plane array.

Coded aperture focal plane array

A method includes generating a first optical signal containing doublet pulses. Each doublet pulse includes a first pulse and a second pulse. The second pulses of the doublet pulses are in quadrature with the first pulses of the doublet pulses. The method also includes transmitting the first optical signal towards a target and receiving a second optical signal containing reflected doublet pulses from the target. Each reflected doublet pulse includes a first reflected pulse and a second reflected pulse. The method further includes performing in-phase and quadrature processing of the first and second reflected pulses and identifying one or more parameters of the target based on the in-phase and quadrature processing.

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Redondo Beach, CA, United States of America

Jae H Kyung