Establishment and Application of High-frequency Channel Transmission Attenuation Model Based on LabWindows/CVI and Matlab

LabWindows/CVI is a software development tool applied to the field of observation and control,while Matlab is an excellent math software.In combination with the advantages of both mentioned above,a method to meet the requirement of the high-frequency signal power testing accuracy by software compensation is proposed.A power attenuation model of high-frequency transmission channel is established with Matlab,and then based on the model,LabWindows/CVI is used to control the testing instruments and compensate the measured power value of high frequency signal.At last,the known high-frequency signal source is tested.The tested result satisfies the requirement of testing accuracy of platform.