DSP program running method of satellite-borne navigation equipment and DSP system thereof

A technology for navigation equipment and program operation, which is applied in the input/output process of data processing, the generation of response errors, and input/output to record carriers, etc. The effect of running and improving stability

Active Publication Date: 2020-11-20
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For this reason, the present invention proposes a DSP program running method of an onboard navigation device and its DSP system, which can solve the problem that the on-chip RAM of the on-board navigation device DSP is easily overturned by a single particle in a complex electromagnetic environment

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  • DSP program running method of satellite-borne navigation equipment and DSP system thereof
  • DSP program running method of satellite-borne navigation equipment and DSP system thereof
  • DSP program running method of satellite-borne navigation equipment and DSP system thereof

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Embodiment Construction

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0026] A DSP program running method of a space-borne navigation device, comprising four steps: differential allocation of main code and detection code space, combined loading of on-chip and off-chip programs, self-checking of off-chip storage after power-on, and EDAC verification of off-chip SRAM.

[0027] The embodiment of the present invention takes the DSP chip model SMJ320C6701 as an example to describe the four steps in detail. SMJ320C6701 is an aerospace-level radiation-resistant floating-point DSP processor designed by TI, and is a...

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Abstract

The invention discloses a DSP program running method of satellite-borne navigation equipment and a DSP system thereof. An effective scheme combining off-chip operation with on-chip detection is adopted; a method of fusing multiple means is adopted; the four steps of main code and detection code space distinguishing distribution, on-chip and off-chip program combined loading, power-on off-chip storage self-checking and off-chip SRAM EDAC checking are comprehensively applied; the problem that the single event resistance of an RAM in a DSP chip of satellite-borne navigation equipment is poor is solved, and the stability of program operation is improved. The method is good in adaptability, is suitable for satellite-borne equipment of a navigation system, is also suitable for satellite-borne equipment of radar and communication systems, is also suitable for part of satellite-borne transmitters, and can improve the single-particle protection capability of the satellite-borne equipment.

Description

technical field [0001] The invention relates to the field of on-board navigation equipment, in particular to a method for running a DSP program of an on-board navigation equipment and a DSP system thereof. Background technique [0002] Artificial satellites are an important medium for human exploration and utilization of space resources, and DSP is widely used in space-borne navigation equipment for signal processing. At present, DSP is used in various types of space-borne equipment such as satellite communication, navigation, and radar. [0003] Spaceborne navigation equipment generally uses DSP as a logic control and calculation unit, and its control and algorithms are usually integrated into DSP to complete. The DSP chip adopts the Harvard bus structure that separates the program and data, adopts a special hardware multiplier, and uses pipeline processing technology to achieve the purpose of quickly processing various digital signals. [0004] In the spaceborne navigatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/10G06F11/14G06F3/06G11C29/12
CPCG06F3/0647G06F11/1012G06F11/1048G06F11/1441G11C29/12
Inventor 周海洋刘哲黄龙李柏渝肖志斌鲁祖坤李聪都倩倩刘强杨威
Owner NAT UNIV OF DEFENSE TECH
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