Sensors Unlimited

Goodrich Corporation

Andrew Eckhardt

Jonathan Nazemi

Joshua Lund

John Liobe

Robert Rozploch

Marc Hansen

Dmitry Zhilinsky

Haijun Hu

Satyen Sukhtankar

Henry W Neal

John P Barby

Timothy Beystrum

Mark Aguilar-Aasted

Michael D Daugherty

Bert Blumenthal

Henry William Neal

Michael Daugherty

A system comprises a photodetector array (PDA) including a plurality of imaging pixels configured to generate electrical signals indicative of an imaged scene, and an integrated circuit (IC) operatively connected to the PDA to receive the electrical signals from the imaging pixels to form image data.

Imaging while simultaneously detecting, tracking and decoding multiple coded laser spots

A method of multi-sensor alignment includes mechanically moving at least one sensor in a plurality of sensors to boresight and focus the plurality of sensors with one another so a respective optical center of each of the plurality of sensors is aligned and focused. The method includes collecting calibration images of a target wherein each sensor of the plurality of sensors collects at least one image of the target, and analytically comparing the images with one another to produce a look up table (LUT) of optical distortion and spatial registration for registration of image data from the plurality of sensors. The method includes saving the LUT in sensor memory for use in registering live images from the plurality of sensors.

Multi-sensor alignment and real time distortion correction and image registration

A non-transitory computer readable medium including computer executable instructions for performing a method that includes locating a pulsing laser on an imaging array, defining a sub-region array smaller than the imaging array based on a location of the located pulsing laser such that the pulsing laser is at least partly within the sub-region, and sampling the sub-region array at a sub-region sampling rate that is higher than a remainder region sampling rate.

Pulsing laser spot tracking and decoding

An imaging method includes receiving electromagnetic radiation at a focal plane array of a handheld device. The electromagnetic radiation is processed within the handheld device, and visible images are displayed on the handheld device. The displayed visible images are indicative of a scene, and include a designator and a designator identifier when a high frequency laser pulse is in the scene. The designator and designator identifier represent the high frequency pulsed electromagnetic radiation received by the focal plane array when a high frequency pulse is present in the scene.

Imaging systems and methods

A pulse repetition frequency detector, tracker, and decoder includes a two-dimensional InGaAs FPA of photodetectors configured to convert laser signals into electrical signals. A ROIC is operatively connected to the InGaAs FPA to condition electrical signals from the InGaAs FPA. A module is operatively connected to the ROIC to decode pulsed codes in the conditioned electrical signals and to provide output for tracking decoded laser spots in two-dimensional space. In another aspect, an imaging device includes an imager with an imaging FPA operatively connected to a first ROIC for imaging. A pulse repetition frequency detector, tracker, and decoder including a second ROIC as described above, is operatively connected to the first ROIC. The first and second ROICs are operatively connected to correlate the position of decoded laser spots in images from the imaging FPA.

Detecting, tracking, and decoding pulse repetition frequency laser energy from laser designators

A method of identifying at least one target includes receiving a series of images over time of pulsed energy reflected from the at least one target, each image including a plurality of pulses related to different first and second pulse codes, detecting the pulses in an image of the received images, and outputting pulse detection information including XY coordinates and arrival time information associated with the respective detected pulses. The method further includes associating the pulse detection information with the first and second pulse codes based on the arrival time information, and generating output position information for the at least one target in space that indicates output positions for the at least one target based on the XY coordinates and being associated with the corresponding first and second pulse codes.

System and method of tracking multiple targets designated by pulse-coded lasers

A method includes correcting for at least one of gain and offset during frame integration for photodetector events. Gain and offset correction is performed separately in each pixel of a digital read-out integrated circuit (DROIC) for a plurality of corresponding pixels in a photodetector array. First and second binary counters respectively use a gain register and an offset register to implement gain and offset correction.

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Richboro, PA, United States of America

Andrew Eckhardt