Method and system for real-time transmission of ultra-wideband airborne data based on multi-channel aggregation
An airborne data, real-time transmission technology, applied in digital transmission systems, transmission systems, and multiple use of transmission paths.
Inactive Publication Date: 2017-12-29
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology
[0003] The present invention aims at the defect that the existing technology cannot meet the data generation speed of the remote sensing or image service provider, and provides an ultra-wideband based on multi-channel aggregation that can increase the airborne wireless data transmission rate to several times the transmission rate of the existing equipment. Method and system for real-time transmission of airborne data
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[0030] In order to make the structural features of the present invention and the achieved effects have a further understanding and recognition, preferred embodiments and detailed descriptions are specially used, which are described as follows:
[0031] The embodiment of the present invention is based on the real-time transmission system of ultra-broadband airborne data based on multi-channel aggregation, and uses multi-channel aggregation to jointly carry the transmission of a broadband data source, thereby realizing that multiple channel links serve a broadband data source. The system includes a transmitting transceiver module and a receiving transceiver module on multiple wireless transmission devices. The transceiver modules are set at different carrier frequency points to form multiple wireless channel links, and multiple wireless channel links are controlled through the process. for data transmission; figure 1 As shown, a plurality of wireless channel links are formed bet...
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The invention provides a method and system for real-time transmission of ultra-wideband airborne data based on multichannel aggregation. The method for real-time transmission of the ultra-wideband airborne data based on multichannel aggregation comprises the steps that receiving and transmitting modules of multiple wireless transmission devices are arranged on different carrier frequency points, so that multiple wireless channel links are formed; the receiving and transmitting modules at the transmitting end fractionize service data into multiple data packages, the transmission data packages are assembled into the frames after being marked mainly in a five-tuple-parameters mode or a seven-tuple-parameters mode, and then the data packages assembled into frames are transmitted to the receiving and transmitting modules at the receiving end through an media access layer or a network layer of the Ethernet; the receiving and transmitting modules at the receiving end receive the data packages from the multiple wireless transmission links, assemble the service data according to data package fractionation sequence numbers in the data packages, and the service data is reverted to original data. According to the method for real-time transmission of ultra-wideband airborne data based on multichannel aggregation, remote and real-time transmission of the ultra-wideband airborne data is achieved through multichannel aggregation, and the wireless airborne data transmission rate can be multiple times that of an exiting device.
Description
technical field [0001] The invention relates to a real-time transmission of airborne data, in particular to a method and system for real-time transmission of ultra-wideband airborne data based on multi-channel aggregation. Background technique [0002] Low-altitude ground monitoring mostly uses drone photography or airborne radar technology, and real-time transmission of monitoring data to the ground requires a high transmission rate. The existing long-range broadband wireless data transmission system only solves the problem of multipath effect and Doppler effect in wireless transmission from the perspective of modulation, and its data transmission bandwidth has reached the limit, but it still cannot provide the real-time transmission of current airborne data. bandwidth. And at present, airborne long-distance broadband wireless data transmission usually adopts a point-to-point single communication link, and the bandwidth of the communication link is limited to the transmiss...
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IPC IPC(8): H04L1/00H04L5/00
Inventor 黄鹰岳锐
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)