초록 ▼

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 fre

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 calibration functions in the multi-function RF signal warning system.

대표청구항 ▼

[ What is claimed is:] [1.] A radio frequency (RF) signal warning system for detecting and providing an indication of RF signals in at least one RF band, wherein said RF signals include at least one pulsed RF signal having a pulse repetition frequency (PRF), said system comprising:amplifying and con

[ What is claimed is:] [1.] A radio frequency (RF) signal warning system for detecting and providing an indication of RF signals in at least one RF band, wherein said RF signals include at least one pulsed RF signal having a pulse repetition frequency (PRF), said system comprising:amplifying and conditioning means for amplifying and conditioning said RF signals to produce corresponding amplified and conditioned RF signals;RF detection means for envelope detecting said corresponding amplified and conditioned RF signals to produce corresponding envelope detected RF signals;video amplifying means for video amplifying said corresponding envelope detected RF signals to produce corresponding video bandwidth signals, wherein said corresponding video bandwidth signals corresponding to said at least one pulsed RF signal have the same PRF as said at least one pulsed RF signal;processing means for processing said video bandwidth signals to determine an RF band of said at least one RF signal and a PRF range of said at least one pulsed RF signal, wherein said processing means generates and transmits audio and visual control signals for indicating said RF band and said PRF range; andat least one remote unit, responsive to said audio and visual control signals, for providing audible alarms and for providing visual indication of said RF band and said PRF range.