Surveillance and Reconnaissance

Search in Surveillance and Reconnaissance
Title Patent Number Grant Date
Unmanned aircraft system (UAS) detection and assessment via temporal intensity aliasing US11727665B2 08/15/2023
Unmanned aircraft system (UAS) detection and assessment via temporal intensity aliasing US10977772B1 04/13/2021
In-situ active impedance characterization of scanned array antennas US10720703B2 07/21/2020
Apparatus, system and method for highlighting activity-induced change in multi-pass synthetic aperture radar imagery US10698104B1 06/30/2020
Ultra-wideband mutual coupling compensation of active electronically scanned arrays in multi-channel radar systems US10615495B1 04/07/2020
Co-notch and independent windowing to mitigate interference in SAR-based imagery US10591582B1 03/17/2020
Apparatus, system and method for highlighting anomalous change in multi-pass synthetic aperture radar imagery US10535127B1 01/14/2020
Spectral replacement to mitigate interference for multi-pass synthetic aperture radar US10495750B1 12/03/2019
Waveform warping for general frequency-modulated radar waveforms US10473755B1 11/12/2019
Vehicle track detection in synthetic aperture radar imagery US10467474B1 11/05/2019
Reduced-bias multi-resolution coherent change detection US10345440B1 07/09/2019
Spectral notch interference mitigation for stretch processing synthetic aperture radar US10330786B1 06/25/2019
Dual-band GPS antenna with horizontal polarization US10290950B1 05/14/2019
Apodization of spurs in radar receivers using multi-channel processing US10288729B2 05/14/2019
Rotation flexure with temperature controlled modal frequency US10288121B2 05/14/2019
Doppler-assisted sensor fusion US10267895B1 04/23/2019
Small mover target detection in synthetic aperture radar imagery US10254399B1 04/09/2019
In-situ active impedance characterization of scanned array antennas US10218068B1 02/26/2019
Robust power detector for wideband signals among many single tone signals US10171189B2 01/01/2019
Antenna array with low Rx and Tx sidelobe levels US10062972B1 08/28/2018
Vehicle track identification in synthetic aperture radar images US10032077B1 07/24/2018
Monolithically integrated infrared transceiver US10020634B2 07/10/2018
Artifact reduction within a SAR image US10018718B1 07/10/2018
Robust power detector for wideband signals among many single tone signals US9912420B1 03/06/2018
Image registration via optimization over disjoint image regions US9886645B2 02/06/2018
Radar velocity determination using direction of arrival measurements US9846229B1 12/19/2017
Apodization of spurs in radar receivers using multi-channel processing US9823346B1 11/21/2017
Joint synthetic aperture radar plus ground moving target indicator from single-channel radar using compressive sensing US9791563B1 10/17/2017
Time-dependent phase error correction using digital waveform synthesis US9784818B1 10/10/2017
Rotation flexure with temperature controlled modal frequency US9759263B1 09/12/2017
Phase difference of arrival geolocation US9651648B1 05/16/2017
Shaping the spectrum of random-phase radar waveforms US9645228B1 05/09/2017
Waveform frequency notching US9645227B1 05/09/2017
Omnidirectional antenna having constant phase US9614273B1 04/04/2017
Method of achieving ultra-wideband true-time-delay beam steering for active electronically scanned arrays US9479232B1 10/25/2016
Subaperture clutter filter with CFAR signal detection US9429644B1 08/30/2016
Navigator alignment using radar scan US9304198B1 04/05/2016
Terrain detection and classification using single polarization SAR US9239384B1 01/19/2016
Pre-processing SAR image stream to facilitate compression for transport on bandwidth-limited-link US9146312B1 09/29/2015
Synthetic aperture radar images with composite azimuth resolution US8994577B1 03/31/2015
Photon detector configured to employ the Gunn effect and method of use US8981312B1 03/17/2015
Ultra-wideband short-pulse radar with range accuracy for short range detection US8854254B2 10/07/2014
Tracking moving radar targets with parallel, velocity-tuned filters US8427359B1 04/23/2013
Mitigating illumination gradients in a SAR image based on the image data and antenna beam pattern US8427358B1 04/23/2013
Real-time method for establishing a detection map for a network of sensors US8265870B1 09/11/2012
Technique for identifying, tracing, or tracking objects in image data US8253802B1 08/28/2012
Technique for ship/wake detection US8170282B1 05/01/2012
Window-based method for approximating the Hausdorff in three-dimensional range imagery US7542624B1 06/02/2009
Controlling data collection to support SAR image rotation US7436349B1 10/14/2008