RU95122442A

RU95122442A - VEHICLE IDENTIFICATION SYSTEM

Info

Publication number: RU95122442A
Application number: RU95122442/09A
Authority: RU
Inventors: А.Оуэнс Ли
Original assignee: Нортроп Грамман Норден Системз Инкорпорейтед
Priority date: 1993-05-27
Filing date: 1994-05-26
Publication date: 1998-02-20

Claims

1. The vehicle identification system at the airport, designed to detect and identify vehicles on the airfield, characterized in that it contains a ground-based radar surveillance system, which seals and emits a conventional radar signal for detecting vehicles on the airfield and an interrogating beacon signal and receiving reflected from the detected vehicle, the echo of the location of the vehicle and the encoded identification signal of this vehicle means, and a repeater mounted on the vehicle for receiving and processing the request signal of the beacon and for emitting an encoded identification signal if the request signal of the beacon is reliable.

2. The vehicle identification system at the airport according to claim 1, characterized in that the ground surveillance radar system comprises a radar transmitter generating a first series of radio pulses at a carrier frequency f and a second series of radio pulses at a carrier frequency f ₂ , the first series of radio pulses being used for detection vehicle, while the interrogation signal contains a second series of radio pulses.

3. The vehicle identification system at the airport according to claim 1, characterized in that the repeater mounted on the vehicle comprises means for detecting the beacon request signal and transmitting the detected signal, means for processing the detected signal to determine whether the request signal is reliable and to obtain the encoded signal characterizing the given vehicle, if the request signal is reliable, and means for modulating the pulse carrier signal at is on the encoded signal to obtain an encoded identification signal and its radiation into free space.

4. The vehicle identification system at the airport according to claim 3, characterized in that the repeater mounted on the vehicle is built into the body of the external light signaling to prevent an aircraft collision.

5. The vehicle identification system at the airport according to claim 3, characterized in that the ground-based radar system comprises a radio beacon receiver for processing the encoded identification signal and generating a decoded vehicle identification signal, a radar receiver for processing the echo reflected from the skin to determine the location of the vehicle means and generating a location signal of a given vehicle; and means for interfacing a decoded identification Igna and location of the signal and receiving the location readings and vehicle identification in the operator's screen.

6. The vehicle identification system at the airport according to claim 3, characterized in that the ground-based surveillance radar system further comprises a master oscillator that generates a pulsed electromagnetic signal having a specific pulse repetition factor and a carrier frequency f _s , a master oscillator that generates a pulsed electromagnetic interrogator a signal having a carrier frequency f ₂ , a means of compaction of the pulsed electromagnetic signal and the interrogated pulsed electromagnetic signal and transmit the floor the learned compressed signal, an antenna for emitting the received compressed signal and receiving the identification echo reflected from the skin, a radar receiver for detecting and processing the echo reflected from the skin to determine the location of the vehicle and generating a position signal, a beacon receiver configured to detect and process an identification signal for identifying a vehicle and generating a processed identification signal, and a means responsive to nal and processed location identification signal intended for coupling position signal and the identification signal and a display controller reading the location and identification.

7. A system for detecting and identifying a vehicle on the airfield, characterized in that it comprises (a) a ground-based surveillance radar system comprising (i) a transmitter sealing a pulsed electromagnetic signal having a carrier frequency value f _c and a request signal having a carrier frequency f _2, and then transmits the resulting combined electromagnetic signal, (ii) receiver comprising a radar receiver and a beacon receiver, the radar receiver detects the reflected electromagnetic energy n carrier frequency f _c, which characterizes the distance of the vehicle, and a beacon receiver detects the identification signal and processes it for identifying the source of the identification signal, and (b) a vehicle transponder receiving the interrogation signal and processes it to determine if a valid interrogation signal has been received, and in the case of a positive response, generating and transmitting a special identification signal of the vehicle.

8. The system for detecting and identifying vehicles on the airfield according to claim 7, characterized in that the values of the carrier frequency f _c and f ₂ are in the radar range K _and .

9. The system for detecting and identifying vehicles on the airfield according to claim 7, characterized in that the repeater is integrated with a flash lamp in the casing of an external light signal for warning an airplane collision.