The Study, Based On The Dsp Gps / Sins Integrated Navigation System

This paper mainly studies the strapdown inertial navigation system (SINS) and global positioning system (GPS) integrated navigation. In order to syncretize the information from the subsystem, the integrated navigation system uses Kalman filte, which can gain high-precision navigation information.Firstly, this paper discusses the integrated navigation system, adoptes the position and velocity integrated model and then presentes its data processing method--Kalman Filter, which contains state equations and observation equations. Secondly, it makes a particular description on the implementation of the integrated navigation system, designs a navigation solver module based on TMS320C6713 DSP and EPM7128 CPLD, and an IMU module based on ADXRS401 and ADXL203. With regard to hardware, the paper uses data processing system based on DSP and control system based on CPLD. For the software design, it adoptes the quaternion practical inertial navigation system algorithms, and uses the position, velocity of the Kalman filter to complete the information fusions of the integrated navigation system. Finally, the integrated navigation system based on DSP is verified by experiment. The results of the experiment indicate that the system can achieve the basic functions we want, and its performance is much better than the single navigation system.