Active imaging system using time programmed dwell
US4129780A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 1977 |
| Grant date | Dec 12, 1978 |
| Priority date | — |
| Expiry date | Jun 21, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An imaging system for detection of a target is provided which compensates for range dependency of a reflected interrogating signal. The imaging system includes an electromagnetic radiation source for generating a series of interrogating pulse signals directed towards the target. A receiver is provided and operable to be triggered for receiving during preselected time intervals the reflected interrogating pulse signals from the target and for generating a resultant output signal. The system further includes circuitry connected for triggering the receiver to receive reflected interrogating pulse signals according to a predetermined time function. The number of reflected interrogating pulse signals thus received by the receiver is dependent on the distance between the receiver and the target. The receiver thus generates a resultant output signal to provide a signal of constant amplitude independent of the distance between the receiver and target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.