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Portable standard interference source

An interference source and portable technology, applied in satellite radio beacon positioning systems, measuring devices, instruments, etc., to achieve the effect of easy portability, convenient expansion, and small size

Active Publication Date: 2015-04-29
HEBEI JINGHE ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No test products for jamming receiver terminals

Method used

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Embodiment Construction

[0020] Below in conjunction with embodiment the present invention is described in further detail:

[0021] The present invention is an interference source generator, which is used for anti-interference test of anti-interference terminal machine. The present invention sets 3 outputs, each of which has continuous wave interference, frequency sweep interference, frequency modulation interference, amplitude modulation interference, noise interference, pulse Interference, any one of the six suppressed interference signals; used for anti-interference terminal test, easy to carry.

[0022] like Figure 1A , Figure 1B , Figure 1C As shown, the present invention is composed of a portable aluminum alloy casing 4, a circuit board 5 located in the casing 4, buttons 2 installed on the panel of the casing 4, a display screen 1, and various interfaces 3, etc., the circuit board 5 and The button 2, the display screen 1 and various interfaces 3 are connected by wires; the interface 3 inclu...

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Abstract

The invention discloses a portable standard interference source which comprises an interference signal generation circuit and a variable-frequency circuit, wherein a control instruction is input through panel buttons and sent to a singlechip microcomputer; the singlechip microcomputer is used for outputting an interference signal type control signal to the interference signal generation circuit, outputting an interference signal power control signal to the variable-frequency circuit, and transmitting the input instruction signal, the interference signal type control signal and the interference signal power control signal to a display screen for displaying. According to the standard interference source, three intermediate-frequency signal generation modules which are independent of one another and non-interfering, and an up-converter module are arranged to guarantee all interference signals to be independent of one another; through external buttons or remote control, the interference types and the signal power of the interference signals are dynamically adjusted; an FPGA (field programmable gate array) is adopted, the interference signals are realized by Verilog HDL programming, and intermediate-frequency interference signals and various interference signal types can be generated; a system adopts a modularized design, so that the number of interference sources can be increased; the standard interference source is small in volume and convenient to carry.

Description

technical field [0001] The invention relates to a signal generator, in particular to a portable standard interference source. Background technique [0002] At present, the earth has been covered by electromagnetic signals of various frequencies and strengths. Therefore, the navigation satellites and receiving terminals we often use will be interfered by various electromagnetic signals, seriously affecting the communication between satellite signals and ground stations and various terminals. Communication, reduce the use effect. Anti-jamming technology is an effective measure to deal with jamming. Through anti-jamming processing in air domain, time domain, frequency domain and joint domain, it can effectively suppress various wide and narrowband suppression interference. The anti-interference technology is applied to the receiver, and the receiver will eliminate the interference signal through the anti-interference algorithm. For the anti-jamming receiver terminal test meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/23
CPCG01S19/23
Inventor 成传湘燕官锋王彦霞梁广军史剑锋郝德良李潇龙霍彦锋
Owner HEBEI JINGHE ELECTRONICS TECH
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