Passive non-linear synthetic aperture radar and method thereof
US10649080B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2017 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Jun 11, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/9058
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radar assembly for receiving signals at spaced frequencies from an unknown transmitting source comprising a receiver operative to receive signals; the receiver comprising a series of channels, each channel comprising a low pass filter configured to allow passage of a signal from an unknown transmitting source, an analog to digital converter configured to transform the signal from the unknown transmitting source to a digital signal, a Hilbert transform configured to transform the digital signal from the unknown transmitting source into a single sideband signal, a Fourier transform configured to transform the single sideband signal into a plurality of regularly spaced frequency samples, and an inverse Fourier transform for extracting regularly spaced frequency samples; whereby extracted pulses form a train of pulses that are inputted into an imager which utilizes synthetic aperture radar to form an image of the area of interest containing the unknown transmitting device and method thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.