Multi-function radio frequency signal warning system
US6177902A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1999 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Jul 1, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-function radio frequency (RF) signal warning system detects different types of RF signals, such as radar signals, provided in various RF bands and provides an indication of the type of radar signal and the RF band. The system detects pulsed radar signals having different pulse repetition frequency (PRF) ranges as well as high duty cycle radar signals and continuous wave radar signals. The system includes a receiver processor that detects the radar signals, video amplifies the radar signals with baseline correction, and processes the radar signals to determine the type of radar signal, e.g., the RF band and PRF range. The receiver processor generates audio and visual control signals and transmits the control signals to one or more remote units. The remote units receive the audio control signals and generate an audible alarm. The remote units receive the visual control signals and illuminate one or more visual indicators, such as LEDs, that indicate the RF band of the radar signal and the PRF range of the radar signal. The remote units can also select one or more bands in which the audio alarm is enabled or disabled. One of the remote units further controls testing and calibr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.