Portable radar target simulator
US5518400A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1994 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Nov 15, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4095
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radar target simulator for generating simulated targets used in testing a radar system. Simulated targets are generated out of the radar system noise. The radar system includes a radar receiver coupled to a receive antenna. The simulator has an input for sampling a transmitted output signal from the radar system. A first reference oscillator is provided for generating a first reference signal, and a first mixer is coupled to the first reference oscillator for mixing the first reference signal with the sampled signal from the radar system to provide a simulated target signal. A laser is coupled to the first mixer for generating a light output signal that corresponds to the simulated target signal. A plurality of selectable delay paths that each have a different predetermined delay length are coupled to the laser. A photodetector is coupled to the plurality of delay paths for convening the light output signal derived from a selected one of the delay paths into a radio frequency (RF) simulated target signal. The photodetector is coupled to an output circuit for transmitting the RF simulated target signal to the radar system. A variable attenuator may be coupled between the photodete…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.