Car Gps / Dr Integrated Navigation System

The developmellt of GPS/DR integrated navigation system for vehicle isproposed in this paPee the systCm is a tyPical multi-sensor systCm in theory ThispaPer discusses the distriblltCd detCction of multi-sensor firstly, which includes thedistributed detection of the classical multi-sensor system, and all kinds ofregulations in fusion celltCr. Simulation results show that multi-sensor systCm canobtain the more reliable and comPlete information than single sensor Thisprovides sufficient theory evidence fOr the design of the systCm.The illtegraed navigation plan, Which takes cheaP Dead-Reckoning (DR) aidGPS positioning, is put forward by studying current situation of the vehiclenavigation location syStems. As GPS error is a crucial fact to syStem precision, thepaPer agrees GPS ermr can be described aPproximatCly 2-order Markov processby analyzing and modeling of GPS ermr This has some practical senses toimprove final positioning accuracyAPPlied the results above on GPS/DR illtegratCd navigation system, ThepaPer adopts a simple, useful federatCd Kalman filtering algorithm to fuse the datacollected from the sensors of GPS and DR. The ability of high accuracy, real-timepositioning can be obtained. This is an imPortane and also uniqueness of thispaPer By using MaP-MatChing estimation revise GPS/DR dare presellted byauthor makes the system have high accuracy positioning and some navigationfiJnction.