基于ANDROID系统的手机简易姿态和定位技术

丽班王草女本科毕业设计（论文)关键词：Android Mems姿态角ABSTRACTThis topic focuses on the measurement and display of the mobile posture of thewidely used smart phones and the internal three-axis gyroscope and accelerometer.Asis known to all,the popularity of smart phones has guaranteed the widespread use ofelectronic maps,but most navigation software or map software only uses GPS signalsas positioning and navigation signals,and users cannot obtain orientation informationwell in the environment where GPS signals fail.However,with the continuousprogress of electronic information and computer technology,the computing andthrough actual experiments capabilities of smart phones are getting higher and higherand can match the computing performance of computers.Smart phones based onAndroid system contain a variety of peripheral circuits,in which there are MEMSMEMS modules.Gyroscope,accelerometer and GPS chip are indispensable toMEMSMEMS module.With most smartphones now equipped with three-axisgyroscopes and accelerometers,we can take advantage of inertial navigation tocompensate for the lack of GPS.Because IOS system is much more difficult to develop than Android system,thistopic chooses Android operating system as the target system,uses Eclipse platformfor application development,and focuses on algorithm implementation.The data ofMEMS sensors such as accelerometer and gyroscope are extracted and processed.Theattitude Angle is measured through actual experiments.The actual effects of differentcomplementary filtering algorithms are compared,and the best precision and stabilityis selected to combine with Wi-Fi.As the first step,this topic extracts the gyroscope signal and solves it,and finallyobtains the posture signal of the mobile phone.