摘要
文中通过分析导弹遥测数据非平稳特性,根据预测差值大小将遥测数据分为缓变参数和速变参数部分,有针对性地采用LZW算法和Huffman算法混合编码的设计方法,并从理论上阐述了该算法的优点及较优的压缩性能。提出了以DSP数据处理器为核心硬件电路的实现方法来进行数据的实时无损压缩,并通过高速以太网传送方式转发给上位机,整个系统模块化设计,易于维护和升级。
The telemetry data is divided into the slow variable element and the fast variable element parts according to the forecast differential value size, and thus the LZW algorithm and the Huffman algorithm mixed coding method is adopted. Finally, the advantages and the higher performance of this algorithm are described in theory, a method with DSP data processor as the core of hardware circuit is proposed to realize the real-time data transmission, and transfer the data to the superior PC through the high-speed Ethernet. The overall system is in modular design, easy for maintenance and upgradation.
出处
《通信技术》
2008年第12期382-384,共3页
Communications Technology
