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Embedded type navigation information processor based on DSP (digital signal processor) and FPGA (field programmable gata array)

A navigation information and processor technology, applied in the field of navigation, can solve the problems that cannot meet the needs of navigation system engineering applications, and achieve the effects of strong data processing capability, real-time performance, low power consumption, and good portability

Active Publication Date: 2013-05-22
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current technology usually only emphasizes a certain aspect, which cannot meet the needs of modern navigation system engineering applications

Method used

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  • Embedded type navigation information processor based on DSP (digital signal processor) and FPGA (field programmable gata array)
  • Embedded type navigation information processor based on DSP (digital signal processor) and FPGA (field programmable gata array)
  • Embedded type navigation information processor based on DSP (digital signal processor) and FPGA (field programmable gata array)

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Embodiment Construction

[0017] Below in conjunction with specific embodiment, further illustrate the present invention, it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those of ordinary skill in the art will understand various equivalents of the present invention Modifications in form all fall within the scope defined by the appended claims of this application.

[0018] Such as figure 1 As shown, the embedded navigation information processor based on DSP and FPGA includes a data acquisition module 1, a logic control management module 2, a navigation data processing module 3, a navigation data output module 4 and a FLASH program solidification module;

[0019] Wherein, the data acquisition module 1 includes a level conversion chip and a photocoupler; the logic control management module 2 includes FPGA, FPGA configuration chip; the navigation data p...

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Abstract

The invention discloses an embedded type navigation information processor based on a DSP (digital signal processor) and an FPGA (field programmable gata array). The navigation information processor comprises a data acquisition module, a logic control management module, a navigation data processing module, a navigation data output module and a Flash program solidification module. The DSP of the navigation data processing module is connected with a Flash, an SDRAM (synchronous dynamic random access memory) and the FPGA outside the DSP through an EMIF (external memory interface). The Flash program solidification module is connected with an external development computer through a serial port. The data acquisition module acquires data and synchronizing signals output by an IMU (inertial measurement unit) and a GNSS (global navigation satellite system). Address decoding and time synchronization are carried out through the logic control management module, and the results are input to an SDRAM (synchronous dynamic random access memory) of the DSP. Strapdown calculating and filtering algorithm are carried out by the navigation data processing module. Navigation information data are sent to other application devices in the form of network messages through the navigation data processing module. The navigation information processor is a special navigation information processor hardware platform applicable to a strapdown inertial navigation system, and meets the requirements for miniaturization, low power consumption and high accuracy of an SINS (ship's inertial navigation system) / GNSS integrated navigation system.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to an embedded navigation information processor based on DSP and FPGA. Background technique [0002] In the SINS / GNSS (Strapdown Inertial Navigation System / Global Navigation Satellite System, strapdown inertial navigation system / global navigation satellite system) integrated navigation system, the navigation information processor needs to complete a large number of real-time data collection, processing and calculation work, including Complete IMU data acquisition, preprocessing, GNSS data preprocessing, clock signal synchronization, inertial system initial alignment, real-time attitude update calculation, carrier motion parameter calculation, combined filtering and error online correction, etc. The data communication task between the sensor and the application object equipment, so the navigation information processor is the key technology of the SINS / GNSS integrated navigation sy...

Claims

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Application Information

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IPC IPC(8): G01S19/49
Inventor 徐晓苏闫捷张涛刘锡祥王立辉
Owner SOUTHEAST UNIV
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