Chongqing Milky Way Based On Gps/dr Vehicular Navigation System Design And Implementation

Along with the city vehicles suddenly growth, the road traffic crowdedphenomenon is more and more serious,Vehicle navigation system is an effectivemedium to relieve the heave traffic, Realize the car’s navigation system and ITScorresponding supporting facilities, can make transportation infrastructure to play outthe biggest efficiency, and the technology of vehicles for correct real-time positioning isthe premise of the system. This thesis introduced the present domestic and foreignvehicle navigation system development and the technical characteristics, analyzed thedomestic and foreign research vehicle-mounted navigation popular combination scheme.In the domestic navigation system gradually developed but the technique is not verymature technology background, many GPS navigation system navigation precision iseasily affected by external interference and positioning precision problem. In order toadapt to market development needs, based on the GPS/DR vehicle navigation systemdesign, the main characteristic is the use of multiple integrated navigation technology,the use of advanced software algorithms to improve the system of navigation andpositioning performance, from cost consideration, low cost sensor, microprocessor andother hardware, have sex of economy, applicability characteristics.This thesis mainly aims at GPS/DR combination navigation system research,studies the basic principle and algorithmic of the integrated location technology, and weuse the multi-sensor data fusion to processing the information of the combinednavigation system thus improved the accuracy and reliability of the integrated locationsystem of GPS/DR, Implementation of the system a good navigation performance.Design is the use of multiple sensor data collection, use the corresponding softwaretechnology to realize the adaptive filtering algorithm with Calman model, It links uppositioning locus of vehicles with the traffic web in electronic map to fix the position ofvehicle to the map. The design focuses on the software design, the system needsanalysis, establishes the system’s functional model, to each function module code anddebug, The software development of the integrated location system has been finished,Through the simulated driving experiment validates the feasibility of the data fusionalgorithm.