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ID:39402165
大小:634.00 KB
页数:138页
时间:2019-07-02
《基于RTLinux平台的微型UAV姿态解算技术研究》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、浙江大学硕士学位论文基于RTLinux平台的微型UAV姿态解算技术研究姓名:杨丽莎申请学位级别:硕士专业:系统工程指导教师:王慧20050201abstract In this thesis, the attitude estimation algorithm for a RTLinux platform basedminiature UAV(unmanned aerial vehicle) is designed and implemented. Miniature UAV generally refer to those which are equipp
2、ed with embeddedcomputer, GPS, IMU(inertial measurement unit), cameras and wireless comunicationquipments, etcrecognition and二They could accomplish autonomous flight within limits, objectlocation, so it is also called aerial robot It is necessary to know its position and attitude rela
3、tive to earth frame in order tolocate a helicopter and control the dynamics of it. To estimate the realtime Eulerangles, we make use of a compass three accelerometers and three gyros. because ofthe volume and weight limits of the helicopter, all sensors are mounted in a strapdownway in c
4、ontrast to using a gimballed platform. Thereby, there are two problems whichneed more considerations. One is the attitude estimation, which is how to convert thedata relative to the body frame received from sensors to the attitude relative to theearth frame. It is the basic of precise na
5、vigation and accurate control of the helicopter.The other problem is to fuse the data sets from different sensors. To solve the problems above, the thesis is arranged as follows. At first, weintroduce comprehensive applications of autonomous miniature UAV Then overseasand domestic stu
6、dies and applications of attitude estimation algorithms are described.Furthermore, requirements of the miniature UAV designed in our lab is analysed andappropriate attitude estimation algorithm is presented. The design and implementation of the onboard embedded software platform formi
7、niature UAV are also introduced in details. after the analysis of each subsystem ofgeneral Linux, How to obtain an embedded Linux satis尔ng our system requirementsand transplant it onto PC/104 is explained. At last result of the attitude estimationalgorithm running on the
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