Orthogonal phase modulation for detection and communication in radar
US10768273B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 9, 2018 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | May 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/93271
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of orthogonal modulation of radar waves of a phase-modulated continuous wave radar system. The method includes selecting an equidistant bi-phased or multi-phased phase-modulation sequence, phase-modulating the continuous radar wave, and transmitting the orthogonal phase-modulated continuous radar wave towards a scene. The method includes generating a detection sequence (s) by applying an outer coding (H) to the phase-modulation sequence, selecting a communication range (C) in the complex number plane, based on the selected phase-modulation, generating a communication sequence (c) having a plurality of sequence members, mapping the communication sequence (c) into the communication range (C) by applying an injective mapping function (Γ) to the sequence members, and calculating a numerical product of members of the detection sequence (s) with members of an image of the mapped communication sequence (c). Phase-modulating the continuous wave of the radar system is carried out according to the calculated numerical products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.