Abstract
This paper innovatively proposed a dynamic threshold based target signal cooperative extraction method for high frequency electromagnetic environment measurement. The proposed method is accomplished by setting dynamic threshold which is changed with the decision conditions of the frequency sets. And the dynamic threshold range is determined by the minimum field strength corresponding to the known reference frequency of the registered stations and the maximum value corresponding to the obtained frequency of the electromagnetic environment background noise in the actual test. By cooperation with established fixed monitoring stations, the target signals can be extracted exactly and fleetly. The actual measured result shows that compared to the traditional target signal extraction method, the proposed one reduces the influence of manual factors and improves the automatic degree and efficiency of high frequency electromagnetic environment measurement.
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