Modeling method for radar complex electromagnetic environment effect mechanism

An environmental effect, complex electromagnetic technology, applied in computer parts, character and pattern recognition, instruments, etc., can solve problems such as difficult to sort out, involving many elements, unable to deal with radar uncertainty problems, etc., to improve computing power. The effect of speed, improved combat capability, and efficient computing

Active Publication Date: 2020-09-25
XIAN TECHNOLOGICAL UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a modeling method for the mechanism of complex electromagnetic environment effects of radar to overcome the problem that the mechanism of complex electromagnetic environment effects involves many elements and is difficult to sort out in a certain space. uncertainty problem

Method used

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  • Modeling method for radar complex electromagnetic environment effect mechanism
  • Modeling method for radar complex electromagnetic environment effect mechanism
  • Modeling method for radar complex electromagnetic environment effect mechanism

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Experimental program
Comparison scheme
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Embodiment

[0044] Such as figure 1 As shown, a modeling method of radar complex electromagnetic environment effect mechanism is realized through the following specific steps:

[0045] s1: Using the characterization of the radar complex electromagnetic environment and various measurement techniques in actual scenarios, measure the effect data of the radar system’s radar complex electromagnetic environment, radar receiving front end, radar signal processing, radar digital processing and other subsystems, and carry out data collection Obtain.

[0046] s2: By classifying the data set obtained after the actual measurement and collection according to the proportion, it is divided into training set and test set, which are used for better model training and verification of model effect. Specific steps are as follows:

[0047] (1): Classify the acquired data set and divide it into training set and test set;

[0048] (2): According to the flow direction of the radar signal, determine the order of...

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Abstract

The invention discloses a modeling method for a radar complex electromagnetic environment effect mechanism. The method provided by the invention comprises the following steps: firstly, performing Bayesian network structure learning on effect data of each subsystem of a radar in an electromagnetic environment by using a K2 algorithm, and establishing a Bayesian network topological structure of a radar system from an input element to an output element; then, under the condition that the network structure is known, calculating Bayesian network parameters by adopting a maximum likelihood estimation algorithm; then, after the Bayesian network model is obtained, performing sensitivity analysis based on the conditional probability change degree on the radar electromagnetic environment effect; andfinally, performing probabilistic reasoning on the model of the radar complex electromagnetic environment effect mechanism by adopting a connection tree reasoning algorithm. According to the method,the radar complex electromagnetic environment effect mechanism can be effectively modeled, the modeling precision is 91%, and theoretical support is provided for improving the combat ability of the radar in the complex electromagnetic environment.

Description

technical field [0001] The invention belongs to the field of radar complex electromagnetic environment effect mechanism, and more specifically relates to a modeling method of radar complex electromagnetic environment effect mechanism. Background technique [0002] Modern warfare is a war focused on fighting for information rights and electromagnetic space. The development of electronic countermeasures is closely connected with the development of radio technology and electronic technology applied to military equipment. At the same time, with the improvement of informatization, in the electromagnetic battlefield environment, the combat effectiveness of radar is often affected by the electromagnetic environment of the electronic information system. The key to improving the adaptability of the electronic information system to the electromagnetic environment is to understand the process of the influence of various elements of the electromagnetic environment on the information sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06K9/62
CPCG06F30/27G06F18/214G06F18/24155Y02A90/10
Inventor 董绵绵贺咪咪邸若海王鹏吴娇洪贤丽李晓艳吕志刚
Owner XIAN TECHNOLOGICAL UNIV
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