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一体化导弹发射平台上集成了很多电子和电气设备 ,电磁环境比较恶劣 ,其组合导航系统需要连续进行实时导航数据的传输和融合 .为了有效克服干扰 ,保证数据传输的准确有效 ,也为了调试方便 ,设计了一种实用的串行通讯协议 .通过实际使用结果表明 ,该协议实用、方便 .  相似文献
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An experimental technique for research on spherical divergent wave propagation in a solid has been developed, in which the source of generating spherical wave is a center initiating explosive charge designed in a mini-spherical shape with yield equivalent to 0. 125 g and 0. 486 g TNT and a set of circular electromagnetic particle velocity gages is used to record the particle velocity histories. By using the circular electromagnetic particle velocity gages, the signal outputs not only are unattenuated due to the geometrical divergence, hut also represent the average of the measured dynamic states of the medium over a circle on the wavefront. The distinctive features of this technique are very useful for the study of spherical divergent wave propagation in a solid, especially in an inhomogeneous solid, and the corresponding material dynamics. Many experimental measurements were conducted in polymethylmethacrylate (PMMA) and granite by means of the technique, and the reproducibility of tests was shown to be good. The measurement technique of the circular electromagnetic particle velocity gages is also suitable to the case of cylindrical wave.  相似文献
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