Method and apparatus for measuring distance to a detection object
US6665056B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2002 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Nov 14, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus of measuring a distance to a reflection object is disclosed. A sensitivity time control (STC) process is applied to a received signal from the reflection object to provide an STC-processed signal. The radar apparatus includes a controller. The controller obtains a quantity corresponding to the distance from a transmission time of the transmission signal and a detection time of the STC-processed signal. The quantity is corrected by using a first correction value associated with the intensity of the STC-processed reflection signal to provide a corrected quantity. The corrected quantity is further corrected by using a second correction value associated with the corrected quantity and the intensity of the STC-processed reflection signal to correct the error regardless of the intensity of the STC-processed reflection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.