Vanadium Oxide Uncooled Infrared Focal Plane Circuit Analysis And Design

This dissertation focuses on the uncooled infrared Focal Plane Array (FPA),the nonuniform correction technique ,the signal process channels and system architecture design of the microbolometer basing on FPA.According to the theory and experience result of the microbolometer, the target of the uncooled infrared FPA is set, and a microbolometer system architecture is designed and imitated by MATLAB .The simulation result proves the system design is feasible.The nonuniform correction technique is an important technique of the microbolometer. The algorithm of the two-point temperature correction is an effective technique for IR imaging. According to the characteristics of FPA and the nonuniform correction algorithm, a method implemented with Fieled Programmable Gate Array(FPGA) is proposed for the real-time correction of IR FPA. Both simulation and experimental results indicate that the method fully satisfies the real-time requirement of nonuniform correction.The Uncooled Infrared FPA is the key component of the microbolometer. The FPA with micro-bridge structure and readout circuit, which is on the basis of the sensitive Vanadium oxide films, is designed. The layout of the FPA is accomplished using CMOS process. At last ,the signal process channel is designed.The research is a part of the project-"The research and design of the uncooled infrared microbolometer" and will contribute to the further study of it.