Short-range Thz Channel Measurement And Modeling About Propagation Mechanism And Characteristics In Indoor Propagation

Modeling and measurement about the wireless channel is the basis for the study of wireless communication.Its main task is to describe the complex propagation mechanism and propagation characteristics of radio waves in a complex wireless communication environment,and the measurement of the wireless channel is to provide practical data support and verification for the process.At present,the fifth generation of mobile communication has slowly become popular,and the sixth generation of mobile communication research has started to deploy research early.An important communication band in the sixth generation of mobile communications is terahertz.The terahertz band electromagnetic waves have different propagation characteristics from the commonly used frequency bands at this stage,and therefore require in-depth study,testing and modeling.Based on the above premise,this paper formally develops the measurement campaign and research of terahertz channels.Based on the actual measurement,the measurement and modeling of the diffraction propagation mechanism of the short-range terahertz channel and the measurement and modeling of the short-range ultra-broadband terahertz reflection channel are carried out as follows(1)This paper firstly starts from the basic theory and completes the research on the test method and principle of terahertz channel,and the theory of terahertz channel propagation mechanism and channel model.The content includes the investigation of the terahertz channel time domain and frequency domain channel test methods;the terahertz channel propagation mechanism,including free space propagation,reflection,scattering,diffraction;the classification and modeling methods of the channel model and the standard model continue to explore.(2)Completed the test on the short-range terahertz diffraction channel,combined with the measurement data environment and antenna to establish a model about the propagation mechanism of the short-range terahertz diffraction channel,and studied the diffraction effects of thin plates of metallic materials and thin plates of non-metallic materials on the terahertz channel,respectively,and conducted a test and study about the effects of the human body on the terahertz channel using the existing rubber hand model.The main research results of this part have been included in the proceedings of the fifth international conferences on communication engineering and technology retrieved by EI.(3)Completed the test of short-range ultra-wideband terahertz reflective channel,established the time-frequency model about shortrange ultra-wideband terahertz reflective channel,analyzed the influence of metal reflective surface and non-metal reflective surface on short-range terahertz channel by combining the measurement data and environment,and verified the reliability of the model by test data.The possible endmachine reflection problem in short-range terahertz channel communication is tested and analyzed,and finally the reflection effect of various buildings on terahertz signals in a laboratory environment with strong reflective surfaces is briefly tested and analyzed,and this part of the research results has been formed into a paper and submitted.