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Signal generator for anti-disclosure blocking of power wires and signal synthesizing method thereof

A signal generator and signal synthesis technology, applied in distribution line transmission systems, electrical components, security communication devices, etc., can solve the problems of leaking useful information, blank security protection measures, lack of network security awareness, etc., and achieve easy expansion. , good usability, high resolution effect

Active Publication Date: 2012-09-26
成都立鑫新技术科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Third, computer information radiates through power lines, leaking useful information
Through the above tests, it can be seen that the power line is likely to be used as a channel for stealing and leaking secrets, and the seriousness of the threat to national security cannot be underestimated. almost blank

Method used

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  • Signal generator for anti-disclosure blocking of power wires and signal synthesizing method thereof
  • Signal generator for anti-disclosure blocking of power wires and signal synthesizing method thereof
  • Signal generator for anti-disclosure blocking of power wires and signal synthesizing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A signal generator for power line anti-leakage blocking, which is processed by a large-scale programmable integrated circuit chip FPGA, a reference clock, a multi-speed clock gear controller, a frequency controller, a phase controller, a frequency synthesizer, and a gain controller , digital-to-analog converter, pseudo-random sequence code generator, wideband modulator, wideband amplifier, final power amplifier and signal synthesizer.

[0035] The reference clock generates a variety of clock sources with different frequencies and sends them to the multi-speed clock gear controller. The multi-speed clock gear controller selects a clock source with a suitable frequency and sends it to the frequency controller. After being processed by the frequency controller into a signal of a specific frequency Input to the phase controller, the phase controller algorithm calculates the corresponding parameters, and then input each parameter to the frequency synthesizer to find out the d...

Embodiment 2

[0049] A high-precision and high-stability reference clock is made by a quartz crystal oscillator. Send the reference clock to the multi-speed clock gear controller. The multi-speed clock gear controller provides clock sources in various frequency gears, and at the same time, the high reliability of the system work is fully guaranteed, and it can provide hot backup for multiple clock sources for the system, which can realize automatic The function of detection and intelligent switching when a given signal source is detected is abnormal, so as to realize real-time and high-stability protection, especially providing a reliable guarantee for military and national defense applications that require extremely high information security.

[0050] The multi-speed clock gear controller has the function of frequency multiplication and frequency division of the reference clock, and performs M times integer frequency multiplication and N times integer frequency division on the input clock ...

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PUM

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Abstract

The invention discloses a signal generator for anti-disclosure blocking of power wires and a signal synthesizing method thereof. The method comprises the following steps: selecting a clock source with suitable frequency from clock sources with different frequencies; controlling and processing the waveform frequency and phase position of the clock source, and then finding out the discretization waveform data; controlling gain, and then switching the digital signal into an analogue signal which is adopted as carrier waves; modulating the pseudorandom sequences on the carrier waves; amplifying the modulated signals to the needed power, later synthesizing and loading in a power network which needs anti-disclosure operation. The signal generator for anti-disclosure blocking of the power wires and the signal synthesizing method thereof have advantages of wider frequency range of the output sine signal, high resolution ratio, and high precision of amplitude and frequency, and are beneficial for realizing various complex functions of amplitude modulation, frequency modulation and phase modulation.

Description

technical field [0001] The present invention relates to an information protection device, in particular to a low-voltage power line (220V) information leak-proof blocking signal generator and a method for synthesizing signals thereof, which are used for technical theft of possible use of power line carrier communication as a concealed communication channel , Leakage, and the behavior of leaking secrets through electromagnetic radiation conducted by power lines for effective protection. Background technique [0002] The power line is the most common physical medium with the widest coverage today, and the power network formed by it is a nearly natural physical network. Utilizing the resource potential of the power grid, under the premise of not affecting the transmission of electric energy, the power transmission network and the communication network are combined into one, making it another communication network after telecommunications, telephone, wireless communication, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54H04L9/22
Inventor 景小兵李声扬胡珂杜少华
Owner 成都立鑫新技术科技有限公司
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