Multi-tone continuous wave detection and ranging
US12164020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2021 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Feb 6, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/9323
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Various examples for multi-tone continuous wave detection and ranging are disclosed herein. In some embodiments, an initial signal is generated using initial radio frequency (RF) tones, and is emitted as a multi-tone continuous wave signal. The initial signal is reflected from a target and received as a reflected signal. Resultant RF tones, including a frequency, a phase and a power, are determined from the reflected signal in a frequency domain. A frequency-domain sinusoidal wave is fitted to the resultant RF tones in the frequency domain, and a distance to the target is determined using a modulation of the frequency-domain sinusoidal wave. A phase processing algorithm is applied to generate the target distance and speed by triangulating the range information encoded in the backscattered RF tones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.