4 patents
Utility
Synthetic aperture radar imaging apparatus and methods for moving targets
5 Jul 22
A synthetic aperture radar (SAR) system may employ SAR imaging to advantageously estimate or monitor a transit characteristic (e.g., velocity, acceleration) of a vehicle, for example a ground based vehicle or water based vehicle.
Peter Allen Fox, Keith Dennis Richard Beckett
Filed: 23 May 18
Utility
Synthetic aperture radar imaging apparatus and methods
23 Mar 21
A synthetic aperture radar (SAR) is operable in an interrogation mode and in a self-imaging mode, the self-imaging mode entered in response to determining a response to interrogation pulses have been received from a ground terminal and position information specifying a ground location has been received from the ground terminal.
Peter Allen Fox
Filed: 23 Nov 16
Utility
Apparatus and methods for synthetic aperture radar with digital beamforming
21 Dec 20
A digital beamforming synthetic aperture radar (SAR) mixes a first analog signal to generate a frequency-shifted first signal having a first spectral band, mixes a second analog signal to generate a frequency-shifted second signal having a second spectral band, positioned at a defined frequency offset from the first spectral band, and positioned non-overlapping relation with the first spectral band, combines the first and second frequency-shifted signals to generate a combined analog receive signal, and band-pass samples the combined analog receive signal to generate a digital baseband signal representative of the first and second analog signals.
Peter Allen Fox
Filed: 16 Mar 16
Utility
Efficient planar phased array antenna assembly
6 Apr 20
A planar phased array antenna assembly includes a first face sheet with a first plurality of radiating slots for a first frequency band and a second plurality of radiating slots for a second frequency band, a second face sheet, a third face sheet, and a structure interposed between the first and second face sheets with a third plurality of radiating elements at the first frequency band and a fourth plurality of radiating elements at the second frequency band, and a first feed network for the third plurality of radiating elements and a second feed network for the fourth plurality of radiating elements, and the second face sheet interposed between the structure and the third face sheet.
Peter Allen Fox, Abhijit Bhattacharya, Ying Chen, Rodney Grant Vaughan
Filed: 14 Jun 16
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