Surveillance and Reconnaissance

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Patents & Applications (56)
Title Patent Number Grant Date
Unmanned aircraft system (UAS) detection and assessment via temporal intensity aliasing 10,977,772 04/13/2021
In-situ active impedance characterization of scanned array antennas 10,720,703 07/21/2020
Apparatus, system and method for highlighting activity-induced change in multi-pass synthetic aperture radar imagery 10,698,104 06/30/2020
Ultra-wideband mutual coupling compensation of active electronically scanned arrays in multi-channel radar systems 10,615,495 04/07/2020
Co-notch and independent windowing to mitigate interference in SAR-based imagery 10,591,582 03/17/2020
Apparatus, system and method for highlighting anomalous change in multi-pass synthetic aperture radar imagery 10,535,127 01/14/2020
Spectral replacement to mitigate interference for multi-pass synthetic aperture radar 10,495,750 12/03/2019
Waveform warping for general frequency-modulated radar waveforms 10,473,755 11/12/2019
Vehicle track detection in synthetic aperture radar imagery 10,467,474 11/05/2019
Reduced-bias multi-resolution coherent change detection 10,345,440 07/09/2019
Spectral notch interference mitigation for stretch processing synthetic aperture radar 10,330,786 06/25/2019
Apodization of spurs in radar receivers using multi-channel processing 10,288,729 05/14/2019
Dual-band GPS antenna with horizontal polarization 10,290,950 05/14/2019
Rotation flexure with temperature controlled modal frequency 10,288,121 05/14/2019
Doppler-assisted sensor fusion 10,267,895 04/23/2019
Small mover target detection in synthetic aperture radar imagery 10,254,399 04/09/2019
In-situ active impedance characterization of scanned array antennas 10,218,068 02/26/2019
Robust power detector for wideband signals among many single tone signals 10,171,189 01/01/2019
Antenna array with low Rx and Tx sidelobe levels 10,062,972 08/28/2018
Vehicle track identification in synthetic aperture radar images 10,032,077 07/24/2018
Artifact reduction within a SAR image 10,018,718 07/10/2018
Monolithically integrated infrared transceiver 10,020,634 07/10/2018
Robust power detector for wideband signals among many single tone signals 9,912,420 03/06/2018
Image registration via optimization over disjoint image regions 9,886,645 02/06/2018
Radar velocity determination using direction of arrival measurements 9,846,229 12/19/2017
Apodization of spurs in radar receivers using multi-channel processing 9,823,346 11/21/2017
Joint synthetic aperture radar plus ground moving target indicator from single-channel radar using compressive sensing 9,791,563 10/17/2017
Time-dependent phase error correction using digital waveform synthesis 9,784,818 10/10/2017
Rotation flexure with temperature controlled modal frequency 9,759,263 09/12/2017
Combined radar and telemetry system 9,720,080 08/01/2017
Phase difference of arrival geolocation 9,651,648 05/16/2017
Waveform frequency notching 9,645,227 05/09/2017
Shaping the spectrum of random-phase radar waveforms 9,645,228 05/09/2017
Omnidirectional antenna having constant phase 9,614,273 04/04/2017
Method of achieving ultra-wideband true-time-delay beam steering for active electronically scanned arrays 9,479,232 10/25/2016
Subaperture clutter filter with CFAR signal detection 9,429,644 08/30/2016
Navigator alignment using radar scan 9,304,198 04/05/2016
Terrain detection and classification using single polarization SAR 9,239,384 01/19/2016
Pre-processing SAR image stream to facilitate compression for transport on bandwidth-limited-link 9,146,312 09/29/2015
Synthetic aperture radar images with composite azimuth resolution 8,994,577 03/31/2015
Photon detector configured to employ the Gunn effect and method of use 8,981,312 03/17/2015
Ultra-wideband short-pulse radar with range accuracy for short range detection 8,854,254 10/07/2014
Mitigating illumination gradients in a SAR image based on the image data and antenna beam pattern 8,427,358 04/23/2013
Tracking moving radar targets with parallel, velocity-tuned filters 8,427,359 04/23/2013
Real-time method for establishing a detection map for a network of sensors 8,265,870 09/11/2012
Technique for identifying, tracing, or tracking objects in image data 8,253,802 08/28/2012
Technique for ship/wake detection 8,170,282 05/01/2012
Generating nonlinear FM chirp radar signals by multiple integrations 7,880,672 02/01/2011
Comparing range data across the slow-time dimension to correct motion measurement errors beyond the range resolution of a synthetic aperture radar 7,777,665 08/17/2010
Decreasing range resolution of a SAR image to permit correction of motion measurement errors beyond the SAR range resolution 7,760,128 07/20/2010
Flight path-driven mitigation of wavefront curvature effects in SAR images 7,551,119 06/23/2009
Window-based method for approximating the Hausdorff in three-dimensional range imagery 7,542,624 06/02/2009
Synthetic aperture design for increased SAR image rate 7,498,968 03/03/2009
Controlling data collection to support SAR image rotation 7,436,349 10/14/2008
Correction of motion measurement errors beyond the range resolution of a synthetic aperture radar 7,391,357 06/24/2008
Tangential velocity measurement using interferometric MTI radar 6,982,668 01/03/2006
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