Electromagnetic spectrum map construction method, device, computer equipment and storage medium

Abstract

The present application relates to a method, device, computer equipment and storage medium for constructing an electromagnetic spectrum map. The method includes obtaining monitoring data and the position of the point to be estimated, using a trend surface fitting algorithm to obtain an estimate of the path attenuation component; making a difference between the monitoring data and the estimated value of the path attenuation component at the corresponding position, and performing a position analysis on the obtained residual monitoring data Clustering, the clustering results are estimated in the optimal neighborhood by kriging method, and the shadow fading component estimation is obtained; according to the path attenuation component and the shadow fading component, the estimation result is obtained. The construction of the electromagnetic spectrum map is decomposed into the estimation of path attenuation and shadow fading components, which effectively improves the construction accuracy of the electromagnetic spectrum map; through monitoring data clustering and optimal neighborhood selection, the calculation amount is reduced under the condition of ensuring the construction accuracy, and the construction accuracy is effectively improved. The construction speed of the electromagnetic spectrum map; this method does not require prior information such as radiation sources and propagation models, and has good adaptability.

Description

technical field [0001] The present application relates to the technical field of electromagnetic spectrum monitoring, in particular to a method, device, computer equipment and storage medium for constructing an electromagnetic spectrum map. Background technique [0002] Electromagnetic spectrum map (Spectrum Map), also known as Radio Environment Map (Radio EnvironmentMap) or Radio Map (Radio Map), can quantitatively describe the electromagnetic environment from multiple dimensions such as time, space, frequency and energy, and combine geographical Information system for visual display. The electromagnetic spectrum map provides basic information for many military and civilian applications such as electromagnetic space cognition and control utilization. Its uses mainly include four aspects. One is to obtain the distribution of electromagnetic spectrum resources, support the refined dynamic allocation of spectrum resources, and realize the efficient use of electromagnetic spect...

AI Technical Summary

Problems solved by technology

However, for the accurate and rapid construction of the electromagnetic spectrum map, the Kriging method still has the following limitations: First, the construction of the electromagnetic spectrum map does not meet the quasi-second-order stationary assumptions and quasi-intrinsic assumptions preconditions required by the Kriging method. Therefore, its construction accuracy is restricted; second, the computational complexity of the Kriging method increases with the cube of the amount of monitoring data, thus severely limiting its construction speed

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