Dual-polarized single channel full-digital radio monitoring direction-finding fixed station system
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A radio monitoring, single-channel technology, applied in the direction of radio/induction link selection arrangement, selection device, etc., can solve the problems of no dual-polarization system, high price, no longer able to meet the needs of digital communication signal monitoring, etc. Expand the dynamic application range, cost-effective, good compatibility effect
Inactive Publication Date: 2009-07-29
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However they are only vertically polarized systems, not dual polarized systems, and are expensive
Equipment that can only monitor analog communication signals can no longer meet the needs of digital communication signal monitoring
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[0013] Referring to the accompanying drawings, its structure mainly includes a vertical polarization interferometer direction-finding antenna array A, a horizontal polarization interferometer direction-finding antenna array B, a vertical polarization monitoring antenna C, a horizontal polarization monitoring antenna D, and a first electric rotary switch unit 1. The second rotary switch unit 2, the first selector 3, the printer 4, the first three-function RF amplifier 5, the second three-function RF amplifier 6, radio frequency preprocessor 7, single-channel monitoring and direction-finding receiver 8. PC 9, monitoring direction finding processor 10, second selector 11, first RF amplifier 12, nth RF amplifier 13, router 14. The connection relationship between them:
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Abstract
The present invention is a dual-polarization single-channel all-digital radio monitoring and direction-finding fixed station system, including a vertical polarization interferometer direction-finding antenna array, a horizontal polarization interferometer direction-finding antenna array, a vertical polarization monitoring antenna, and a horizontal polarization monitoring antenna , the first rotary switch unit, the second rotary switch unit, the first selector, the printer, the first three-function RF amplifier, the second three-function RF amplifier, RF preprocessor, single-channel monitoring direction-finding receiver , PC, monitoring direction finding processor, second selector, first RF amplifier, nth RF amplifier, router. Advantages: The large-aperture active direction-finding antenna array is used, which solves the mutual coupling problem between each antenna array element well, and eliminates the coupling between unit antennas and phase ambiguity. Using correlation interferometer direction finding system, a pair of antenna elements are sampled at the same time to ensure synchronization, speed and accuracy. The RF preprocessor is used for phase / amplitude / phase conversion and storage of the RF signal. Amplifier with amplification, straight-through, and attenuation functions, automatic switching, expanding the dynamic application range of received signals, high direction finding accuracy and sensitivity, stable and reliable, and excellent cost performance.
Description
technical field [0001] The invention relates to a dual-polarization single-channel all-digital radio monitoring and direction-finding fixed station system, and belongs to the technical field of array signal digital processing and direction-finding in communication technology. Background technique [0002] With the deepening of radio management work, some low-end user markets need economical and affordable monitoring equipment, so a system represented by the DDF190 system of German R / S company appeared, which uses a single-channel receiver to realize monitoring and direction finding. . However, they are only vertically polarized systems, not dual polarized systems, and are expensive. Equipment that can only monitor analog communication signals can no longer meet the needs of digital communication signal monitoring. Contents of the invention [0003] The purpose of the present invention is to propose a dual-polarization single-channel all-digital radio monitoring and direc...
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