Method for inverting electromagnetic situation of complex environment based on multiple sensors

Abstract

The invention discloses a method for inverting the electromagnetic situation of a complex environment based on multiple sensors, which is mainly used to solve the problem that a huge quantity of sensing equipment is required and the accuracy of electromagnetic situation inversion is low in the prior art. The technical scheme includes the following steps: (1) determining and configuring the parameters of a complex electromagnetic environment; (2) constructing a sensor position matrix; (3) constructing a path loss matrix; (4) carrying out radiation source identification according to the sensor position matrix and the path loss matrix to obtain the positions and radiation power of radiation sources; and (5) carrying out electromagnetic situation inversion according to the radiation sources identified to get the electromagnetic situation of each point. Under the condition that the positions of a few sensors are randomly distributed and the positions and radiation power of the radiation sources are randomly distributed, radiation source identification can be realized, and electromagnetic situation inversion can be realized. The method can be used in complex environment electromagnetic situation inversion based on multiple sensors.

Description

technical field [0001] The invention belongs to the technical field of communication, relates to spectrum sensing technology, radiation source identification, and further relates to a complex environment electromagnetic situation inversion technology based on multiple sensors, which can be used for electromagnetic situation inversion in complex environments. Background technique [0002] With the rapid development of wireless communication technology, various communication devices continue to increase, and there are more and more types of signals, and the power of the signal is large, the transmission distance is long, and the scope of influence is wide. Various electromagnetic devices are intertwined, and the transmitted signals share the wireless communication environment, coupled with the influence of the natural environment and various background noises, forming a complex and rapidly changing new space - complex electromagnetic environment. Complex electromagnetic enviro...

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Problems solved by technology

However, these methods have the problems of a large number of sensing devices and low accuracy of electromagnetic situation inversion. At the same time, these methods are likely to cause the following problems when realizing electromagnetic situation visualization:

[0005] (1) It is necessary to obtain the electromagnetic situation data on the vertices of the spatial grid of the entire experimental area at a certain moment, and the required amount of data is large, which requires a large number of sensing devices

[0006] (2) Due to the complexity of the electromagnetic environment, the electromagnetic situation data cannot be directly visualized, and the overall electromagnetic situation cannot be effectively displayed

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