Design Of V-band Array Receiving Experiment System

The study of aperture synthesis microwave radiation imaging technology requires the experimental system to provide hardware support.In this paper,v-band array receiving experiment system are designed as an experimental platform.V-band array receiving experimental system can be equipped with a front-end antenna array through the mechanical platform,and receives the microwave signal from the antenna array,and then off-line data processing by the computer to get the scene of the temperature distribution image.The system can support a variety of antenna formation of the aperture synthesis imaging experiments.Based on the experimental requirements,the overall design scheme of V-band array receiving experiment system is provided.The experimental system consists of a V-band front-end receiving antenna array,a signal acquisition system,an external calibration source,a data storage and processing server,and a mechanical platform.In this paper,the performance index of each component of the system is determined,and the design scheme of front-end receiving array,antenna,single receiving channel,signal acquisition system,data storage and processing server and mechanical platform is given.The experimental system is also implemented according to the design scheme,and the data acquisition function of the system is improved in this paper.At the end of this paper,the parameters of the antenna and the front-end array in the experimental system are tested,and the stability of the receive channels in the experimental system is tested.The experimental results show that this experimental system can be used to study the imaging technology of integrated aperture microwave radiation.