Harris Corporation

Eagle Technology, LLC

Exelis Inc.

Excelis Inc.

Ronald Joseph Glumb

Christopher E Lietzke

David Stanley Smith

David R Wickholm

Sheldon David Stokes

Paul Maurer

Peter Mantica

Glen Daniel White

Methods and systems to record amplitudes of an interference pattern of a source light at successive rows of a focal plane array as an interferometer traverses the source light, while varying an optical path difference of the interferometer. A fixed frame rate of the focal plane array may be selected such that each in-track row of the focal plane array provides a different point along the interferogram, for the same ground location.

Push-broom Fourier transform spectrometer

Techniques are provided for an image processing device to receive image information comprising image data for a plurality of mid-wave infrared region (MWIR) channels, where the image data is obtained during a first imaging period and during a second imaging period temporally different from the first imaging period. A plurality of sets of atmospheric wind vectors are calculated using differences between image data obtained during the first imaging period and the image data obtained during the second imaging period for corresponding sets of MWIR channels. An altitude is assigned to the plurality of atmospheric wind vectors in each set based on a brightness temperature of each wind vector and a pre-computed atmospheric temperature profile to generate a set of two-dimensional wind fields comprising one two-dimensional wind field for each set of MWIR channels.

Wind field vertical profile estimation using spectral radiance of multiband imagery and temperature profiles

A calibration device for a radiometer includes an integrating cavity and a honeycomb blackbody mounted to the integrating cavity. A plurality of emitters are mounted to the exterior rim of the integrating cavity for transmitting narrow band wavelengths of light into and out of the integrating cavity. A controller, selectively, activates one or more emitters to radiate a single narrow band wavelength of light during an ON period and turn OFF during another period. A plurality of reference detectors are also mounted to the exterior rim of the integrating cavity for measuring the intensity of each narrow band radiation outputted from the integrating cavity. The reference detectors are effective in determining changes in intensity output by each of the narrow band emitters from the integrating cavity. The measured changes in intensity outputted by the emitters are used to calibrate the radiometer with the changes traced back to a NIST standard.

Onboard calibration source for spectral calibraton of a radiometer

Volcanic ash is identified within a field of regard (FOR) by obtaining spectral radiance data comprising brightness temperature values over a specified spectral range for each field of view (FOV) within the FOR, determining a baseline brightness temperature value over the specified spectral range that is identified as representing no volcanic ash, and assigning one or more FOVs having brightness temperature values that deviate from the baseline brightness temperature value by a predetermined amount with an indication of containing volcanic ash.

Automatic identification of volcanic ash plumes using measured spectral radiance over a plurality of field of views

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Fort Wayne, IN, United States of America

Ronald Joseph Glumb