Multi-channel radio monitoring and correlation interference direction-finding mobile station system
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A technology of radio monitoring and related interference, which is used in the selection and arrangement of radio/induction links, transmission systems, and monitoring of transmission channels. The problem of low accuracy, etc., achieves the effect of expanding the dynamic application range, good sensitivity and high system accuracy
Inactive Publication Date: 2008-05-07
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However, due to the poor ability of this method to withstand the influence of the surrounding harsh electromagnetic environment, there are often phenomena such as inaccurate signal azimuth judgment, low direction finding accuracy, poor sensitivity, slow direction finding speed, and susceptibility to interference.
With the deepening of radio spectrum management, early monitoring equipment and monitoring technology can no longer meet the requirements of the development of the times
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[0014] Control attached figure 1 , its structure includes vertically polarized active / passive interferometer direction-finding antenna array 1, high-end and low-end electric rotary switches 2, power divider 3, first antenna selector 4, three-function RF amplifier 5, dual-channel measuring Direction receiver 6, digital intermediate frequency phase detector 7, monitoring direction finding processing unit 8, industrial control computer 9, low-end vertical polarization monitoring antenna 10, high-end vertical polarization monitoring antenna 11, second antenna selector 12, monitoring receiver Machine 13, hub 14, UPS, battery pack or commercial power 15,15 are battery pack or commercial power, headstock orientation indicator 16, printer 17, electronic compass 18, GPS19.
[0015] The connection relationship between them: vertically polarized active / passive interferometer DF antenna array 1, high-end and low-end electric rotary switches 2, first antenna selector 4, three-function RF a...
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Abstract
The invention relates to a multi signal channel wireless detection and relative interference direction detecting mobile station system. Wherein, it comprises a vertical polarized active / passive interferometer direction detecting antenna array, high-low electric screw switches, power distributor, the first antenna selector, three-function RF amplifier, dual-signal channel direction detecting receiver, digit middle-frequency phase detector, detecting direction detection processing unit, industrial control computer, low vertical polarizing detecting antenna, high vertical polarizing detecting antenna, the second antenna selector, detecting receiver, accumulator, UPS, inverter, head direction instructor, GPS, electric compass, printer, and concentrator. The invention has the advantages that: one couple antenna units sample at the same time, to confirm synchronization, quick speed, and accuracy; it uses active / passive interferometer direction detecting antenna array, to solve the couple problem between array units; and the detection and direction detection can be processed at the same time. The inventive system has high accuracy, sensitivity, speed, stability and reliability.
Description
technical field [0001] The invention relates to a mobile station system for multi-channel radio monitoring and related interference direction finding, and belongs to the technical field of array signal digital processing direction finding in communication technology. Background technique [0002] The early monitoring and direction-finding system used the ratio-amplitude direction-finding system, which judged the direction of the signal by comparing the signal amplitudes received by each unit antenna on the antenna array. However, due to the poor ability to withstand the influence of the surrounding harsh electromagnetic environment, this method often has inaccurate signal azimuth judgment, low direction finding accuracy, poor sensitivity, slow direction finding speed, and is susceptible to interference. With the deepening of radio frequency spectrum management, early monitoring equipment and monitoring technology can no longer meet the requirements of the development of the ...
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