基于峰值多层级支持向量机的X射线通信解调技术研究

X-ray Communication Demodulation Technology Based on Peak Multilevel Support Vector Machine

X射线通信技术是一种以X射线为载波的空间通信方式,它具有通信带宽大、重量轻、体积小、功耗低、保密性高等优势。通过设计多靶材X射线信号调制装置可以提高X射线的通信速率,在信号接收端要保证X射线能谱的识别准确率,才能真正发挥基于能量负载的X射线通信的优势。本文针对多靶材X射线特征能谱精确识别问题,提出基于峰值多层级支持向量机的X射线通信解调方法,设计了适合四码元通信的峰值多层级支持向量机分类器,通过参数调优和验证确保了高准确率和泛化能力。仿真结果证明:支持向量机为基于能量负载的X射线通信方法提供了高效、准确、鲁棒的信号识别解决方案。

X-ray communication technology is a kind of space communication mode using X-ray as a carrier,which has the advantages of a large communication bandwidth,light weight,small volume,low power consumption,and high confidentiality.By designing a multi-target X-ray signal modulation device,the X-ray communication rate can be improved,and the accuracy of X-ray energy spectrum recognition at the signal receiving end can be ensured,so that the advantages of X-ray communication based on energy load can be truly played.In this paper,an X-ray communication demodulation method based on peaking multi-level support vector machine is proposed to accurately identify the X-ray characteristic energy spectrum of multi-target materials.A peaking multi-level support vector machine classifier suitable for four-element communication is designed.The parameter tuning and verification ensure high accuracy and generalization ability.The simulation results show that support vector machine provides an efficient,accurate,and robust signal recognition solution for X-ray communication based on energy load.