Data encoding method, data transmission method and system

By improving the 8-bit data type and encoding method, combined with frequency domain analysis and image compression, the problem of satellite telemetry data redundancy is solved, achieving efficient data compression and transmission, which is suitable for satellite telemetry and Internet of Things data.

CN122420403APending Publication Date: 2026-07-17SHANGHAI SATELLITE NETWORK RESEARCH INSTITUTE CO LTD
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Patent Information

Application Number
CN202510087153.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

When satellite telemetry data is represented using half-precision floating-point numbers, there is a redundancy problem, resulting in low data transmission efficiency. Existing compression algorithms cannot be effectively applied to spaceborne equipment.

Method used

The telemetry data is encoded using an improved 8-bit data type and an encoding method based on the IEEE 754 standard. Combined with frequency domain analysis and image compression algorithms, the data is reconstructed into a two-dimensional image for transmission.

Benefits of technology

It reduces data redundancy, improves the compression rate and transmission efficiency of telemetry data, is suitable for limited channel capacity and bandwidth, and achieves efficient data compression and recovery.

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Abstract

提供一种数据编码方法、数据传输方法及系统。数据编码方法包括：分析遥测数据的数值范围和历史编码方式，当所述历史编码方式为半精度浮点数且所述数值范围处于第一预设范围时，采用第一编码方式对所述遥测数据进行编码；其中，所述第一编码方式是基于8比特编码，所述第一编码方式的第7位为符号位、第6位～第5位为指数位、第4位～第0位为尾数位。本发明通过分析遥测信号的数据范围，采用改进的8比特数据类型(1字节)，重新对遥测信号进行编码，降低了数据冗余度，达到针对较低精度遥测信号进行高效压缩和复原的目的。
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