全频谱深度认知理论与方法

Theories and Methods of Full-spectrum Deep Cognition

深入研究了全频谱认知与智能利用领域,强调了现有认知无线电理论和无线电监测技术在特定环境中的优势,指出在面对宽带、瞬变、未知、复杂的电磁环境时存在“认不深”的问题。为解决这一挑战,提出了多维度的深度频谱认知作为未来的发展方向,从信号多维特征与个体本征属性双重维度对辐射源目标进行精准认知。通过探索辐射源目标信号的多域特征,构建辐射源完备表征数据库,实现通信终端的本征属性认知,可以更全面地理解和利用频谱资源。分析了调制域、协议域中信号的调制识别以及协议解析等研究现状;高速目标信号识别和空域定向认知的发展瓶颈及主要研究方向。提供了较为全面的理论和方法,为未来多维度的电磁环境感知和频谱利用奠定了基础。

The field of full-spectrum cognition and intelligent utilization is deeply studied,and the advantages of existing cognitive radio theories and wireless monitoring technologies in specific environments are emphasized.However,it is also pointed out that the challenge of“shallow understanding”exists when facing broadband,transient,unknown and complex electromagnetic environments.To address this challenge,multi-dimensional deep spectrum cognition is proposed as a future developing direction,which focuses on precise cognition of radiation source targets through dual dimensions involving signal multi-dimensional features and individual intrinsic properties.By exploring the multi-domain characteristics of radiation source target signals and constructing a comprehensive characterization database,the intrinsic property cognition of communication terminals is realized,enabling a more comprehensive understanding and utilization of spectrum resources.The current research status of signal modulation recognition and protocol analysis in modulation domain and protocol domain is analyzed,and the development bottlenecks and key research directions for high-speed target signal recognition and spatial directional cognition are explored.A comprehensive theoretical framework and methods are provided,laying a foundation for future multi-dimensional electromagnetic environment perception and spectrum utilization.