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An integrated system of SAR and wireless communication and its realization method

A wireless communication and channel technology, applied in radio transmission systems, radio wave measurement systems, transmission systems, etc., can solve complex electromagnetic compatibility problems, low level of integration, energy consumption and other problems, to avoid electromagnetic compatibility problems, The effect of low level of integration and enhanced mobility

Active Publication Date: 2019-04-30
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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Problems solved by technology

[0003] However, the current SAR and wireless communication systems are relatively independent, and the level of integration is low, resulting in waste of resources such as space, weight, and cost, and even complex electromagnetic compatibility issues
The most prominent problem is limited by the strict installation space and weight requirements on aircraft or satellites. When adding functions, it is necessary to consider increasing structural resources. Of course, it will directly bring about cost increases, energy consumption, and weakening of aircraft maneuverability.
In addition, both SAR and wireless communication systems work in the form of microwave radiation. There are complex electromagnetic compatibility issues between the two devices and other microwave radiation devices or electromagnetic sensitive devices that may exist on the platform. The types of devices on the website will be limited to a certain extent

Method used

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  • An integrated system of SAR and wireless communication and its realization method
  • An integrated system of SAR and wireless communication and its realization method
  • An integrated system of SAR and wireless communication and its realization method

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Embodiment Construction

[0023] like figure 1 As shown, the system is installed on the carrier platform. During the flight, while using the system to image the static scene on the ground or detect the moving target, it can realize real-time communication with the ground communication terminal. The ground communication terminal receives data such as SAR real-time snapshot images and distributes them to the intelligence base station, or forwards remote control information to airborne equipment. SAR can express two meanings, one is "a kind of radar", and the other is "imaging mode". Therefore, SAR and MTI can be distinguished or not. MTI is an imaging mode.

[0024] like figure 2 , 3 As shown, an implementation method of an integrated system of SAR and wireless communication, the system has the working modes of "SAR / wireless communication" and "MTI / wireless communication", the system uses reasonable "space-time-frequency" resources Allocation and scheduling realize the above working mode; in the "SAR...

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Abstract

The invention relates to an SAR and wireless communication integrated system. An output end of an FPGA controller is connected with an input end of a D / A converter, the output end of the D / A converter is connected with the input end of an analog transmission channel, the output end of the analog transmission channel is connected with the input end of an A / D converter, the output end of the A / D converter is connected with the input end of the FPGA controller, a circulator is in two-way communication with a phased-array antenna, and the FPGA controller is in two-way communication with a digital beam forming module. The invention further discloses an implementation method of the SAR and wireless communication integrated system. The SAR and wireless communication integrated system provided by the invention achieves a broadband wireless mobile communication function, not only reduces the requirements on the volume and weight of the equipment, but also reduces the energy consumption and avoids the problem of complex electromagnetic compatibility to a certain extent.

Description

technical field [0001] The invention relates to the technical field of earth observation and navigation, in particular to an integrated system of SAR and wireless communication and its realization method. Background technique [0002] With the rapid development of electronic technology, more and more types and quantities of sensors are installed on aircraft or satellites, and their functions and performance are also continuously enhanced, which greatly improves their combat effectiveness and survivability in future electronic warfare. As an all-weather "detection-detection-strike-evaluation" sensor and an airborne broadband wireless mobile communication system as an important "aircraft-ground" communication means, the SAR system is one of the indispensable equipment on future electronic warfare aircraft or satellites . [0003] However, the current SAR and wireless communication systems are relatively independent, and the level of integration is low, resulting in waste of r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185G01S13/00
CPCG01S13/00H04B7/18506H04B7/18563Y02D30/70
Inventor 沈明星王晓涛邬伯才孙龙余海龙
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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