Electromagnetic radiation emission measurement method in outfield disturbed environment

Abstract

The invention provides an electromagnetic radiation emission measurement method in the outfield disturbed environment and relates to the technical field of the wireless electric signal and electromagnetic radiation emission measurement. The method comprises the following steps of: a step (S1) of measuring electromagnetic radiation emission statistical parameters of a plurality of channels in real time, i.e. at least simultaneously providing a real-time signal measurement value of one path of electromagnetic radiation emission signal and one path of real-time statistical parameter measurement value for each measurement channel; a step (S2) of identifying and extracting improved underdetermined blind signals, i.e. obtaining signal extraction coefficients according to the real-time statistical parameter measurement values; and a step (S3) of carrying out electromagnetic radiation emission measurement denoising, i.e. utilizing the obtained signal extraction coefficients from the real-time signal measurement values to respectively carry out identification and extraction on electromagnetic radiation emission signals from a measured electromagnetic radiation emission source and different interference sources so as to implement the electromagnetic radiation emission measurement denoising and the electromagnetic radiation emission measurement in the outfield disturbed environment.

Description

technical field [0001] The invention relates to the technical field of radio signal and electromagnetic radiation emission measurement, in particular to an electromagnetic radiation emission measurement method in an external field disturbance environment. Background technique [0002] With the development of the electrical and electronic technology industry, the electromagnetic compatibility of equipment has become one of the key factors that directly affect its function and safety. Electromagnetic radiation emission measurement of electrical and electronic equipment is one of the main technical means to study the interference and anti-interference and electromagnetic compatibility of electrical and electronic systems and equipment. Related experimental data collection and comprehensive analysis are indispensable conditions for research. The electromagnetic radiation field is openly distributed in the entire space where the energy can be transmitted. Therefore, in the distur...

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Problems solved by technology

However, for some special measured objects, such as high-speed moving trains, huge aircraft, or large-scale equipment in the starting state, etc., no matter from the perspective of technology or economic investment, it is necessary to establish a matching anechoic chamber Or open field and conduct electromagnetic radiation emission experiments are not feasible

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