The Development Of GPS/MINS Integrated Land Navigation System Based On DSP

Global Navigation Satellite System (GNSS) and Dead Reckoning Positioning System (DRPS) are the two typical positioning technology of the land navigation. In this paper, Global Positioning System (GPS) in the GNSS and Micro Inertial Navigation System (MINS) in the DRPS are applied to develop the hardware platform of GPS/MINS Integrated Land Navigation System Based on DSP.GPS functional modules from a GPS chip set of Application Specific Integrated Circuit (ASIC) is made up of radio-frequency converter of front-end and digital channels correlator; MINS functional modules from more Axis inertial sensors of integrated Micro Electro Mechanical Systems (iMEMS) technology constitute a three-dimensional micro strapdown inertial navigation system (MSINS); Adopting a single highly floating-point Digital Signal Processor (DSP) act as processing platform of GPS/MINS integrated navigation data; Using a field programmable gate array (FPAG) design a Universal Serial asynchronous transmitter (UART) which transfer standard navigation data to the external application equipment with RS232 interfaces. To achieve all-weather, no land boundaries of integrated navigation.Papers used in general and specific narrative approach, to complete the five modules and design of externally integrated circuit for the main content; to implement the connection between each module interface then design of the entire system hardware platform as the fundamental purpose and on this basis given the GPS tracking loop algorithm and the MINS strapdown navigation algorithm. Practice shows that the entire system with continuous, reliable position; its low cost, small size, suitable for medium to high-end land-based vehicle navigation and air navigation near the ground.