论文部分内容阅读
北京时间2003年5月25日零时34分,我国在西昌卫星发射中心用“长征三号甲”运载火箭,成功地将第三颗“北斗一号”导航定位卫星送入太空.它与前两颗“北斗一号”工作星组成了完善的卫星导航定位系统.可确保全天候、全天时为用户确定其所在的地理经纬度和海拔高度并提供卫星导航服务.对我国国防和国民经济建设将起到积极作用. “北斗一号”导航定位卫星是地球同步卫星.本着“理论联系实际”的原则,借助于高中物理知识,我们可
At 0340 on May 25th, Beijing time, China used the “Long March 3A” carrier rocket at the Xichang Satellite Launch Center and successfully delivered the third “Beidou-1” navigation and positioning satellite into space. The two “Beidou-1” working stars formed a complete satellite navigation and positioning system. It can ensure that the geographic latitude, longitude, and altitude of the user’s satellites are provided throughout the day and the whole day, and satellite navigation services are provided. The national defense and national economic construction will be implemented. Play an active role. The “Beidou-1” navigation and positioning satellite is a geostationary satellite. With the principle of “theory is linked with practice”, with the help of high school physics knowledge, we can