A High-Speed Digital Transmission System Applicable to Spatial Active Digital Array
A high-speed digital transmission and digital array technology, applied in free space transmission, wavelength division multiplexing system, optical multiplexing system, etc., can solve the problems of sub-array division number and limited connection through the cabin, and achieve weight reduction , Strong anti-interference performance and low optical loss
Active Publication Date: 2020-07-10
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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Problems solved by technology
[0012] The technical problem to be solved by the present invention is to solve the problem that the number of sub-arrays divided and the connection through the cabin are limited in the application of the existing large space array, and to provide a high-speed digital transmission system suitable for the space active digital array
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[0029] 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.
[0030] Such as figure 1 As shown, this embodiment includes two parts inside the cabin and outside the cabin. The cabin includes: a digital processing module, an electro-optical conversion module in the cabin, a photoelectric conversion module in the cabin, an optical wavelength division multiplexing module in the cabin, and a light-wave decomposition multiplexing module in the cabin. ; The outside of the cabin includes: outside the cabin light-wave division multiplexing module, outside the cabin optical wavelength division multiplexing module, outside the cabin photoelectric conversion module, outside the cabin ele...
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The invention discloses a high-speed digital transmission system suitable for a spatial active digital array, the digital processing module is respectively connected with the input terminal of an in-cabin electro-optical conversion module, the output end of the in-cabin electro-optical conversion module, an output end of the in-cabin electro-optical conversion module is connected to an input end of an in-cabin optical wavelength division multiplexing module, the output end of the in-cabin optical wavelength division multiplexing module is connected to a cabin-passing optical connector, the input end of the in-cabin electro-optical conversion module is connected with the output end of the in-cabin light wave demultiplexing module , the input end of the in-cabin light wave demultiplexing module is connected with the cabin-passing optical connector, the input end of an out-cabin light wave demultiplexing module and the output end of the out-cabin light wave demultiplexing module are respectively connected with the cabin-passing optical connector, the input end of the out-cabin light wave demultiplexing module is connected with the out-cabin light wave demultiplexing module, and the output end is connected with the digital transceiver front end. Based on the system design of digital signal optical transmission and optical wavelength division multiplexing (OWDM), the sub-array partition of spatial large-scale application system is realized.
Description
technical field [0001] The invention relates to a sending and receiving technology of radar, communication, electronic countermeasure and other systems in a space-borne platform, in particular to a high-speed digital transmission system suitable for space active digital arrays. Background technique [0002] The working process of the active digital array system is to digitally process the baseband signal to form a digital waveform signal, and then undergo a series of related processing after digital-to-analog conversion to form a high-power transmission signal, which radiates microwave energy through the antenna; the antenna receives After the weak radio frequency signal is amplified and processed, it is converted into a digital signal and then processed in the digital domain. Therefore, the function of the digital processing module in the active digital array system is to generate digital waveforms based on parallel DDS (Direct Digital Synthesis) of FPGA, and then perform d...
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IPC IPC(8): H04B10/11H04B10/40H04J14/02
CPCH04B10/11H04B10/40H04J14/0202
Inventor 张瑞莫骊花婷婷林松闫超
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST