Detection method and device against power conduction electromagnetic leakage

Abstract

The invention discloses a detection method against power conduction electromagnetic leakage. The method comprises that a conduction electromagnetic leakage red signal source generates an electromagnetic leakage red signal for simulating a conduction electromagnetic leakage signal, and the electromagnetic leakage red signal is coupled to a power line of the signal source; and a leakage signal detector receives and analyzes the signal in the reception end. The invention also discloses a detection device against power conduction electromagnetic leakage. The detection device comprises the conduction electromagnetic leakage red signal source and the leakage signal detector; the conduction electromagnetic leakage red signal source generates the electromagnetic leakage red signal for simulating the conduction electromagnetic leakage signal and couples the electromagnetic leakage red signal to the power line of the signal source; and the leakage signal detector receives and analyzes the signalin the reception end. Thus, the conduction leakage protection capability of equipment and system can be detected rapidly, and weak points can be located.

Description

technical field [0001] The invention relates to the technical field of electromagnetic environment safety protection, in particular to a detection method and device for power conduction electromagnetic leakage protection. Background technique [0002] During the working process of the digital system, the behavior, storage and processing information of the system will be emitted intentionally or unintentionally through radiation leakage and conduction leakage. Using TEMPEST (TransientElectromagnetic Pulse Emanation Surveillance Technology) technology, the The leaked electromagnetic signal is recovered at the far end of the leak source. Conducted information leakage is a major electromagnetic leakage method, which poses a greater threat of electromagnetic information leakage due to its strong signal strength and long transmission distance. For conducting information leakage, the existing protection method is to connect red and black isolation devices in series on the conducti...

AI Technical Summary

Problems solved by technology

In actual application scenarios, the same red-black isolation device will have completely different load characteristics due to different access target devices and system hardware conditions, and the red-black isolation effect will be completely different. The performance of red-black isolation is extremely It may deviate from the nominal value under the premise of 50 ohms, and it will not achieve the ideal conduction electromagnetic information leakage protection effect in some frequency bands

Images