萤火一号探测器有效载荷数据管理器设计
doi: 10.11728/cjss2009.05.486 cstr: 32142.14.cjss2009.05.486
Design of YH-1 Payload Data Handling Unit
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摘要: 针对萤火一号探测器各有效载荷的需求设计出安全、可靠的载荷数据管理器(PDHU), 实现对其 进行数据采集、处理、存储以及供配电等; PDHU提供操作系统, 便于应用软件的 开发; 针对火星探测的实际情况, 对地通信采用无交错的RS码加卷积码的级连编码方式进行信道编码.Abstract: According to the request of Payloads, it is necessary to design a safe and reliable Payload Data Handling Unit (PDHU) for YH-1 satellite. The functions of PDHU are data collection, data processing, data storage and system power supply. PDHU affords an operating system, which is convenient for software development. Under the circumstances of Mars exploration, a channel encoding method which adopts the non-interlaced RS-Convolutional Concatenated Code is used to ensure the communication between the space and the Earth.
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Key words:
- YH-1 /
- PDHU /
- VxWorks /
- Reliability /
- Concatenated Codes
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