The Implementation Of Extraction And Detection Of Electromagnetic Signals Based On FPGA

Various electromagnetic signals are found everywhere around us.All these effective and useful contents brought from electromagnetic signals are very notable.Therefore,designing a platform which can detect and gather the effective contents brought from electromagnetic signals should be a very meaningful research.Attacking on ICT devices is one of the key node of Transient electromagnetic pulse emanation surveillance technology research.Intercepting electromagnetic information leakage,data reconstruction and data reproduction are all the emphasis of this research.Aimed at the information leakage of PS/2 keyboard,this research designed a FPGA platform for information leakage extraction and detection.Also based on the operation principles of PS/2 keyboard,an experiment was conducted to testing the information leakage detection.The research also designed an algorithm to detect and recover keying information and was implemented to FPGA platform.In a word,this platform successfully makes the technology of the detection and recovery of keyboard information leakage pragmatic and miniaturized and operates smoothly in the working environment.The application of biological electromagnetic signals definitely proves its importance and significance and hence attracts more and more attention in the clinical medicine.Electrocardiograph signal is one of the most important bioelectricity signal which play a vital role in detecting cardiovascular and cerebrovascular diseases.Therefore,quick detection of electrocardiograph signal through computers is a very significant researching direction.This research provides a simple and reliable electrocardiograph signal capturing algorithm as well as a FPGA platform for signal analysis.The FPGA platform can detect and monitor the electrocardiograph signal and possesses the function of locating the QRS wave and monitoring the changes of heart rate.