Amplitude-phase correction method and system for microwave imaging system
US11215697B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 7, 2017 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Feb 16, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/89
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An amplitude-phase correction method and system for a microwave imaging system are provided. The method comprises: carrying out data processing, in a range direction, on an echo signal reflected from a target object and acquired by a linear array antenna according to a first pre-set algorithm to obtain a compressed signal in the range direction; extracting a range value corresponding to the maximum amplitude, in the range direction, of the compressed signal in the range direction; carrying out time delay compensation on the echo signal according to the range value to obtain a time-delay-compensated signal; carrying out data processing on the time-delay-compensated signal according to a second pre-set algorithm to obtain an amplitude-phase signal; and carrying out amplitude-phase correction on the echo signal according to the time-delay-compensated signal and the amplitude-phase signal to obtain a corrected echo signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.