Device, method and system for extracting high speed signals from frequency mixing signals

Abstract

The invention is suitable for the field of communication, and provides a device, a method and a system for extracting high speed signals from frequency mixing signals. The device comprises an A / D converter, a high-pass filter, a low-pass filter, a low-speed GJB289A signal detector, a regenerative low-speed signal generation module, a low-speed GJB289A monitor, a synchronous control module, a digital delay and a subtractor, wherein the low-speed GJB289A signal detector detects whether low-speed signals exist in the digital frequency mixing signals transmitted on the bus; the regenerative low-speed signal generation module generates regenerative digital low-speed signals; the low-speed GJB289A monitor monitors word types of the low-speed signals transmitted on the bus; and the subtractor subtracts the regenerative digital low-speed signals from the digital frequency mixing signals to extract the high-speed GJB289A signals. The device, the method and the system can fully utilize frequency band width and effectively extract the high-speed singles, has not high implementing complexity and ensures high reliability of data transmission.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a device, method and system for extracting high-speed signals from mixed frequency signals. Background technique [0002] Our country has formulated the GJB289A bus standard. The internal digital time-division command / response multiplex data bus data transmission mode defined by the standard has the characteristics of stability and flexibility, and has high communication efficiency, and is convenient for modification, expansion and maintenance. Among them, the double redundancy design of the GJB289A bus standard improves the reliability of the self-system and the whole system. Because of such advantages, the low-speed GJB289A system has been fully developed and applied, not only in military aviation, but also in industry. [0003] With the modernization of national defense and the upgrading of weapon systems, the low-speed GJB289A bus is gradually widely used in weapon syst...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a device for extracting high-speed signals in mixed frequency signals, aiming at solving the problem of high-speed GJB289A system provided by the prior art, which transmits high-speed and low-speed signals on the same bus, which cannot fully utilize the frequency bandwidth and realize complex, The problem of low reliability of data transmission

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