System and method for adaptive simultaneous transmit and receive leakage cancellation
US10393859B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2016 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Oct 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/358
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method and apparatus for leakage signal cancellation in a simultaneous transmit and receive RF system includes: generating a digital transmit signal for transmission from the system; receiving a receive signal produced by reflection of the transmit signal from an object or generated by a second RF system; adaptively filtering the transmit signal by an adaptive finite input response (FIR) filter; calculating filter coefficients for the adaptive FIR filter in real-time at a different sampling rate; adaptively inputting the calculated filter coefficients to the adaptive FIR filter to generate a cancellation signal in real-time; and applying the cancellation signal to the receive signal to cancel leakage in the receive signal to generate an optimum receive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.