通过在单片机方和PC机方制定相应的通讯协议，该卡能直接用于采用计算机技术、对要求数据传输速率比较高的工业现场控制系统中。
By making relative communication protocol in the SCM and the same in the PC, the card can be directly used in an industrial field control system with highspeed data transmission.
本文分析了SD-2测井系统数据传输过程，结合测井实际的需要，在软件的编写中，应用了中断、扩展内存、显存直接操作等技术。
SD-2 log system data transmitted process is analyzed in the article. The extended memory. Interrupt and DMA technology is used in the program according as log practice require.
目前，无人机数据链系统采用的调制模式都比较简单，如2FSK、BPSK、直接扩频技术等，传输速率与抗干扰能力有限。
The modulation types of data link for UAV are simple, such as BPSK, 2FSK , direct spread spectrum. The transmitted rate and anti-interference performance of them are limited.
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