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

Abstract

The invention relates to an electromagnetic spectrum map construction method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring monitoring data and a to-be-estimated point position, and acquiring path attenuation component estimation by using a trend surface fitting algorithm; subtracting the monitoring data from the path attenuation component estimation value of the corresponding position, performing position clustering on the obtained residual monitoring data, and estimating a clustering result in an optimal neighborhood by adopting a Kriging method to obtain shadow fading component estimation; and obtaining an estimation result according to the path attenuation component and the shadow fading component. Electromagnetic spectrum map construction is decomposed into estimation of path attenuation and shadow fading components, so that the electromagnetic spectrum map construction precision is effectively improved; through monitoring data clustering and optimal neighborhood selection, the calculated amount is reduced under the condition of ensuring the construction precision, and the electromagnetic spectrum map construction speed is effectively improved; and the method does not need prior information such as a radiation source and a propagation model, 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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