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A kind of x-band broadband multi-beam digital receiving system and its signal processing method

A digital receiving system and beam signal technology, which is applied in the field of broadband multi-beam data receiving system, can solve the problems of complex design and high cost of components, and achieve the effects of reducing the amount of equipment, improving interference suppression, and improving engineering reliability

Active Publication Date: 2020-12-11
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is: the existing design is too complicated, the number of components is large and the cost is high, and an X-band broadband multi-beam digital receiving system and its signal processing method are provided

Method used

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  • A kind of x-band broadband multi-beam digital receiving system and its signal processing method
  • A kind of x-band broadband multi-beam digital receiving system and its signal processing method
  • A kind of x-band broadband multi-beam digital receiving system and its signal processing method

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Embodiment Construction

[0035] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0036] Such as image 3 As shown, this embodiment includes 16 RF front-ends 1, 16 first RF cables 2, 16 low-frequency control cables 3, 1 multi-beam network 4, 16 second RF cables 5, and 16 X-band digital receivers 6. 16 optical cables 7 and 1 signal processor 8;

[0037] The radio frequency front end 1 is connected to the multi-beam network 4 through the first radio frequency cable 2, and is used for limiting amplification, filtering and amplitude and phase control of the X-band radio frequency signal;

[0038] The multi-beam network 4 synthesizes the radio frequency signals output by the radio frequency front e...

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Abstract

The invention discloses an X-band broadband multi-beam digital receiving system and a signal processing method thereof. The X-band broadband multi-beam digital receiving system is characterized in that: a plurality of RF (Radio Frequency) front ends are used for performing amplitude limiting amplification, filtering and amplitude-phase control on X-band RF signals; a multi-beam network is connected with the each RF front end and is used for synthesizing an RF signal output by the RF front end and outputting a plurality of receiving beam signals at the same time; a plurality of X-band digital receivers are connected with the multi-beam network, and are used for performing power dividing, filtering, amplification, direct digitization and digital downconversion processing on the plurality ofbeam signals which are received, and transmitting baseband data to a signal processor; and the signal processor is connected with the each X-band digital receiver, and is used for performing basebandprocessing, receiving a control command which is externally input, adjusting attenuation and phase shifting code values inside the RF front ends, and achieving weighting of the beams. The X-band broadband multi-beam digital receiving system of the invention has the beneficial effects that: the multi-beam network is used to achieve receiving multi-beams, thus the number of equipment can be greatlyreduced, weight and cost can be significantly reduced, and engineering reliability can be greatly improved.

Description

technical field [0001] The invention relates to a broadband multi-beam data receiving system, in particular to an X-band broadband multi-beam digital receiving system and a signal processing method thereof. Background technique [0002] In order to adapt to the detection and reception of various electronic signals under complex electromagnetic environment conditions, an array receiving system that can meet the technical requirements of large instantaneous bandwidth and wide airspace coverage is urgently needed. The broadband multi-beam digital receiving system can simultaneously form multiple receiving beams and process multiple beams simultaneously to achieve wide airspace coverage. Therefore, the broadband multi-beam digital receiving system is widely used in the electronic surveillance system. [0003] Referring to Chapter 7 and Chapter 8 of "Phased Array Radar Technology" (written by Zhang Guangyi and Zhao Yujie, Electronic Industry Press), the implementation methods of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H04B7/0404
CPCH04B1/40H04B7/0404
Inventor 向海生杨宇宸莫骊万笑梅夏润梁肖圣兵
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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