基于软决策驱动和协作MIMO的数据采集系统设计

Design of data acquisition system based on soft decision driven and collaborative MIMO

为了提高远距离和恶劣信道环境下数据采集终端工作效率和精度,设计了一种基于软决策驱动和协作MIMO的数据采集系统。该系统,通过软决策驱动数据采集终端,根据软决策驱动输出强度和信道质量实现软决策因子漫游,同时架构协作MIMO信道矩阵实现数据采集的协作控制。实验结果表明,所设计的数据采集系统在50 m以内距离工作效率可以达到85%以上,信噪比大于30 d B后数据精度可以达到85%以上,表明该系统不仅具有高工作效率而且数据采集精度提高显著。

In order to improve the remote and poor channel environment data acquisition efficiency and accuracy of the terminal, designed a data acquisition system of soft decision driven and collaboration based on MIMO. The system, through the soft decision driven data acquisition terminal, according to the soft decision drive strength of the output and quality of channel to achieve soft decision factor roaming, also architecture cooperative MIMO channel matrix achieve cooperative control of data acquisition. The experimental results show that the design of the data acquisition system of less than 50 meters distance work efficiency can reach more than 85%, signal to noise ratio greater than 30dB data accuracy can reach more than 85%, indicating that the system not only has high work efficiency and data ＇acquisition accuracy improved significantly.