ALGORITHM FOR IMPROVING ACCURACY IN GPS USING DUAL FREQUENCY

摘要：

In this paper an attempt is made to reduce the WAAS associate error and further increase the accuracy of WAAS. The WAAS can be simulated with the help of Matlab Algorithm Availability Simulation Tool (MAAST). Where we can observe that the direct use of multiple frequencies would be more accurate and offer high availability by directly estimating and removing the ionospheric effects and also another way to take advantage of the multiple frequencies is to use the additional GPS frequencies as a backup navigation method when RFI is present. In this paper we have simulated the output for the different combination of GPS signal Such as LI L2, and LI L5 in the MAAST tool and finally compare them. Where we observe that L1, L5 is providing the better accuracy as compared with the other two combination because the greater the frequency separation enhances the ionosphere delay estimation and helps in the removal of ionosphere error.

关键词： WAAS Availability Dual-Frequency Ionosphere Effects Amplitude Scintillation

作者: K.A SUMITHRA DEVI S.A.HARIPARASAD RANJITHA I PRADEEP KUMAR H S

作者单位: R,V, College of Engineering,Bangalore, India Research Assistant,R,V, College of Engineering,Bangalore, India M,Tech Student R,V, College of Engineering,Bangalore, India

会议类型: 国际会议

会议名称: 3rd International Conference on Mechanical and Electrical Technology(ICMET2011) (2011第三届机械与电气技术国际会议)

会议地点: 大连

会议语种:英文

页码: 459-463

在线出版日期: 2011-08-26（万方平台首次上网日期，不代表论文的发表时间）