# US 2023/0066031 A1 · Imaging using frequency-scanned radar

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- Number: US 2023/0066031 A1
- Document ID: US20230066031A1
- Status: Published application
- Kind: A1
- Application number: 17/902,403
- Filed: 2022-09-02
- Published: 2023-03-02
- Earliest claimed: 2018-04-23
- Assignees: KMB Telematics, Inc.
- Applicants: KMB Telematics, Inc.
- Inventors: Bryan CATTLE
- Web page: https://patentgrep.com/patent/US20230066031A1

## CPC

- G01S 13/89: for mapping or imaging
- G01S 7/024: {using polarisation effects (in waveguides H01P1/165; for aerials H01Q, e.g. H01Q15/22, H01Q15/24, H01Q19/195)}
- G01S 7/032: {Constructional details for solid-state radar subsystems}
- G01S 7/411: {Identification of targets based on measurements of radar reflectivity (G01S7/415 takes precedence)}
- G01S 13/26: wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
- G01S 13/426: {Scanning radar, e.g. 3D radar (G01S13/66 takes precedence)}
- G01S 13/931: of land vehicles
- H01Q 3/22: varying the orientation in accordance with variation of frequency of radiated wave
- H01Q 13/10: Resonant slot antennas
- H01Q 13/20: Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q 13/206: {Microstrip transmission line antennas}
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

Antennas oriented at a first orientation toward an area of interest can transform radar signals through a first transformation that physically maps the plurality of radar signals with a plurality of unique beam angles corresponding to a plurality of unique frequencies. Antennas oriented at a second orientation toward the area of interest can transform radar signals through a second transformation completing the first transformation. A frequency scan can be performed on a first plurality of responses to first radar signals to identify first spatial data along a first dimension. Second spatial data at second spatial location along a second dimension can be created from a second plurality of responses corresponding to the second transformation. An image can be generated using the first spatial data and the second spatial data while a range value of the area of interest can be determined using the first plurality of responses.

## Claims

### Claim 1

A frequency-scanned radar imaging system comprising:
one or more signal generators configured to generate a plurality of radar signals, each of the plurality of radar signals being based on one or more reference signals and having one of a plurality of unique frequencies within a frequency band;
first one or more antennas oriented in a first orientation toward an area of interest and configured to perform a first transformation of a first representation of the plurality of radar signals, the first transformation physically mapping the plurality of radar signals with a plurality of unique beam angles corresponding to the plurality of unique frequencies;
second one or more antennas oriented in a second orientation toward the area of interest, the second orientation orthogonal to the first orientation and configured to perform a second transformation of a second representation of the plurality of radar signals, the second transformation complementing the first transformation;
a first focusing module configured to focus the first representation of the radar signals by performing a frequency scan of the plurality of radar signals, and to identify, using the first representation, first spatial data at first spatial locations along a first dimension corresponding to the plurality of unique beam angles;
a second focusing module configured to focus a second representation of the plurality of radar signals and to identify, using the second representation, second spatial data at second spatial locations along a second dimension distinct from the first dimension;
a range determination module configured to identify a range value of the area of interest using the first representation or the second representation of the plurality of radar signals;
an image formation module configured to form one or more images of the area of interest using the first spatial data for a first resolution along the first orientation and the second spatial data for a second resolution along the second orientation.