| 遥测数据软件容错解码研究 |
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| 引用本文： | 杨宏,贾维敏,韦荫康.遥测数据软件容错解码研究[J].上海航天,2000,17(3):49-53. |
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| 作者姓名： | 杨宏 贾维敏 韦荫康 |
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| 作者单位： | 西安第二炮兵工程学院,陕西,西安,710025 |
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| 摘 要： | 针对硬件帧同步器解码可能丢失整帧数据这一问题，提出一种软件解码方法，并对实时处理的可行性进行了分析。首先将接收到的PCM数据流进行位同步，然后经过一双口RAM作为缓冲，直接送入微机进行实时帧同步码粗同步。在所有遥测数据都接收完之后，利用模糊算法和最优选择实现帧同步码精确同步，从而得到不丢失帧的遥测解码数据。该软件用VC6．0得到了实现。
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| 关 键 词： | 帧同步码 实时处理 遥测数据处理 容错解码 |
| 修稿时间： | ：1999－06－3 |
STUDY ON FAULT-TOLERANT DECODING OF TELEMETRY DATA SOFTWARE |
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| YANG Hong,JIA Wei-min,WEI Ying-kang.STUDY ON FAULT-TOLERANT DECODING OF TELEMETRY DATA SOFTWARE[J].Aerospace Shanghai,2000,17(3):49-53. |
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| Authors: | YANG Hong JIA Wei-min WEI Ying-kang |
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| Abstract: | When noisy frame synchronization patterns aren't identified, telemetry data is discarded by hardware synchronizer. In order to solve the problem, a software frame synchronization algorithm is presented and the feasibility of real time processing is verified. PCM stream which has been bit blocked is sent into computer, buffered by a dual port static RAM, then it's frame blocked roughly. Fuzzy algorithm and optimal selection is used to frame block accurately after all telemetry data received. As a result, the software frame synchronization algorithm is designed to be robust. The software is realized in VC6.0. |
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| Keywords: | Telemetry data Decoding Frame synchronization patterns Real time processing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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