RU36147U1 - Ground-based space radar system - Google Patents

Description

 Lt .., .. Binhn

Ground - space radar system.

A utility model relates to the field of radar, specifically to diversity radar systems.

Known ground - space radar system (RU No. 25098, CL. GO IS 13/06, 2002), containing a space-based transmitter and spaced receiving devices synchronized by the transmitter signals and connected to a central processing station for radar echo signals.

A disadvantage of the known system is the lack of radar capabilities.

The present utility model is based on the task of creating a ground - space radar system, the design of which allows to expand its radar capabilities.

The solution to this problem is achieved by the fact that the ground-based space radar system containing a space-based transmitter and spaced receiving devices synchronized by the transmitter signals and connected to the central processing station of the radar echo signals, according to the utility model, it further comprises a ground-based station for controlling the operating modes of the space transmitter, and receiving devices are connected to a central station for processing radar signals through a space line communication. Moreover, as receiving devices, it contains standard, built-in automatic or semi-automatic receiving devices for ground, air, water or space-based. Established receivers with a range of waves not corresponding to the range of waves of the space transmitter are equipped with additional receivers for receiving reflected signals in the range of the space transmitter. The space transmitter is equipped with one common or several antenna systems.

SHYMPK: O018 13/06

transmitting devices operating in several ranges of electromagnetic waves and a transmitting device of interrogation signals.

Keeping these differences allows you to expand the radar capabilities of the system.

In FIG. The functional diagram of the ground - space radar system is presented.

The ground-space radar system contains a space-based transmitter 1 and spaced receiving devices 2, synchronized by the signals of the transmitter 1 and connected via a space communication line 3 to the central station 4 for processing radar (echo and response) signals. The control output of the central station 4 through the ground control station 5 is connected to the control input of the space transmitter 1. At the same time, it contains standard, integrated automatic or semi-automatic receiving devices, ground, air, water or space-based, as spaced receiving devices 2. As standard receiving devices 2 in the system, it contains receivers of existing standard airborne radar systems for air traffic control, radar detection systems, radio recognition systems for air objects in the national and international ranges of electromagnetic waves of air traffic control, etc.} radar and radio receivers. Established diversity receivers 2 with a range of waves not corresponding to the wave range of the space transmitter 1 are equipped with additional receivers 2 for receiving reflected signals in the range of the space transmitter. The space transmitter 1 is equipped with one common or several antenna systems 6, transmitting devices 7 operating in several ranges of electromagnetic waves and a transmitter 8 of identification request signals.

The transmitter 1 is mounted on a spacecraft with a geostationary or near-earth orbit. Diversity receiving devices 2 comprise a series-connected antenna, a digital radio receiver, a computing unit, and a radar information transmission unit. The output of the radar information transmission unit of each of the devices 2 is connected via a space communication line 3 to the station 4 for processing radar echo and response signals, the information outputs of which are system outputs. The space line of candles 3 is made in the form of a system of transceivers installed on receivers 2, central station 4 and on artificial Earth satellites (satellite repeaters - not shown in Fig.).

The system operates as follows. The transmitter 1 with a given frequency, for example hundreds of Hz, generates short sounding radio pulses that irradiate the airspace of the Earth in a wide angular sector of view. These radio pulses are received by diversity receivers 2 and are used to synchronously open their amplification paths for the required time for receiving reflected signals from air objects between the sounding signals. In the event that reflected signals appear in the detection zone of the receiving devices 2, the range and the angular direction of the air object are measured last. The measured parameters of the airborne object from the receiver 2 through the space communication line 3 are transmitted to the central station 4 for processing radar echo signals. At station 4, the signals from airborne objects are identified and path information is processed and control signals for the operation of the space transmitter 1 are generated. The control commands from station 4 are transmitted to the space transmitter 1 through the control station 5. As a result, the space transmitter 1 switches to the narrow radiation pattern mode and its transmitter 8 sends its radiation pattern to the location area of the detected air object and sends to

recognition request signal. In the case of receiving a response signal by the receiving device 2, the latter transmits the coordinates of the response signal through the space communication line 3 to the central station 4 for processing radar signals. In this case, the central station 4 through the control station 5 removes the target transmitter for the given air object from the space transmitter and gives it the coordinates of another air object for interrogating the latter. In the future, the process of detection and recognition of airborne objects in the visibility range of spaced receivers 2 is repeated.

This utility model is not limited to the above example of its implementation. Within the framework of this utility model, another constructive solution of the system is also possible. Communication lines between the central station 4 and the spaced receivers 2 can be additionally performed using repeaters. The transmitter 1 can be installed on one or more spacecraft (satellites). In this case, when the next satellite enters the zone of responsibility of the system, its transmitter 1 is launched into the pulse generation mode by the control station 5. The transmitter 1 is turned off in the same manner when the satellite leaves the zone of responsibility of the system.

The utility model is developed at the technical proposal level.

Claims (5)

1. Terrestrial-space radar system containing a space-based transmitter and spaced receiving devices synchronized by the signals of the transmitter and connected to the central processing station of the radar signals, characterized in that it further comprises a ground station for controlling the operating modes of the space transmitter, and the spaced receiving devices are connected to a central processing station for radar echo signals through a space communication line. 2. The system according to claim 1, characterized in that as receiving devices it contains standard, built-in automatic or semi-automatic receiving devices for ground, air, water or space based. 3. The system according to claim 1, characterized in that the standard receiving devices with a wave range that does not correspond to the wave range of the space transmitter are equipped with additional receiving devices for receiving reflected signals in the range of the space transmitter. 4. The system according to claim 1, characterized in that the space transmitter is equipped with one common or several antenna systems and transmitting devices operating in several ranges of electromagnetic waves. 5. The system according to claim 1, characterized in that the space transmitter is equipped with a transmitter for request recognition signals.