摘要
针对城市车辆全球定位系统(GPS)定位存在的不连续性问题,提出了采用压电陀螺和里程仪组成的低成本航迹推算系统与GPS组合方案。经过系统设计和组合算法的仿真,结果表明,当GPS失效后,采用该系统可在定位精度为30m的条件下维持4min左右,从而保证了全球定位系统在城市车辆定位中的应用和推广。
According to the problem of position discontinuity using GPS in city cars, a scheme that GPS is combined with DR which is composed by piezoelectric gyro and milemeter is put forward. With the design of system, the result of algorithmic simulation shows that the system can persevere in more than 4 min under the condition of 30 m precision after GPS is invalidated, which ensures the application and popularization of GPS in city cars position.
出处
《压电与声光》
CSCD
北大核心
2003年第6期476-479,共4页
Piezoelectrics & Acoustooptics
