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A method and system for compressing and storing large-capacity data

A compressed storage and large-capacity technology, applied in radio wave measurement systems, transmission systems, satellite radio beacon positioning systems, etc., can solve the problems of narrow acquisition bit width, short acquisition time, and large data files

Active Publication Date: 2021-09-24
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the technical problems of existing equipment such as short continuous collection time, large data files, and narrow collection bit width, this invention proposes a scheme for compressing and storing large-capacity data

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  • A method and system for compressing and storing large-capacity data
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  • A method and system for compressing and storing large-capacity data

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Embodiment Construction

[0031] In order to make the objects, technical solutions, and advantages of the present invention more clearly, the technical solutions in the embodiments of the present invention will be described in contemplation in the embodiments of the present invention, and will be described, and the embodiments described in the embodiments of the present invention will be described. It is only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0032] In order to solve the design of the acquisition equipment structure, the data storage, the first aspect of the present invention discloses a method of compressing a large capacity data in the first aspect of the present invention; To achieve satellite acquisition playback equipment normalified automation acquisition, extremely large compressed data file, ...

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Abstract

The invention proposes a method and system for compressing and storing large-capacity data. The method includes: preprocessing the satellite navigation signal received via the ground antenna; determining whether there is interference in the preprocessed satellite navigation signal through signal detection; The signal is compressed and stored; if not, the preprocessed satellite navigation signal is selectively stored; the compressed storage specifically includes: converting the satellite navigation signal to be compressed and stored, so that the converted base is higher than The current system; determine the probability of occurrence of characters on each data bit of the satellite navigation signal converted by the system; based on the probability of occurrence of the characters on the various data bits, the satellite navigation signal converted by the system is encoded, to Achieve lossless compression.

Description

Technical field [0001] The present invention belongs to the field of data compression technology, and more particularly to a method and system for compressing a large capacity data. Background technique [0002] The collection of original data of satellite navigation signals has great value for research work. The general monitoring receiver does not preserve raw data, only the result of the output, which brings great significant research activities in signal quality detection, interference analysis. Harass. Satellite Navigation Signal Collect Plays and other devices can store raw data, and portable devices are more favored by major scientists. However, there is a limited storage and playback device stored, limited working hours, which have great difficulties in completing unmanned, normalized, high quality monitoring and collection tasks. [0003] In order to cope with the task of large data acquisition, the commonly used dual-channel signal acquisition playback gauge increases s...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06G01S19/21G01S19/42
CPCG01S19/21G01S19/42H04L69/04
Inventor 郭海玉倪少杰鲁祖坤孙广富肖伟邱杨孙涛周彦波赖成伟宋捷
Owner NAT UNIV OF DEFENSE TECH