Phase coded linear frequency modulation for radar
US9841498B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2014 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | May 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/93277
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein are embodiments that relate to phase coded linear frequency modulation for a radar system. Embodiments include transmitting at least two signal pulses. The transmitting includes transmitting a first pulse with a first phase modulation and a first chip rate, and transmitting a second pulse with a second phase modulation and a second chip rate. The second chip rate may be different than the first chip rate. Embodiments also include receiving a signal that includes at least two reflection signals associated with reflection of the at least two transmitted signal pulses. Embodiments further include processing the received signal to determine target information. The processing includes filtering the received signal to time-align the at least two reflection signals. The filtering includes applying a frequency-dependent time delay to one or more of the at least two reflection signals. Additionally, embodiments include removing phase code modulations from the time-aligned reflection signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.