排序方式： 共有6条查询结果，搜索用时 15 毫秒
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对CPLD(复杂可编程逻辑器件)技术的基本特征和发展趋势作了简要介绍,揭示了该技术在现代数字系统中的重要地位及作用.利用CPLD对时统设备IRIG-B码产生器进行集成,其实验结果表明,集成了的B码产生器不但简单、可靠,而且便于调试,克服了以往硬件电路复杂的缺点. 相似文献
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介绍了基于STC89C516RD＋单片机的实验开发平台的硬件电路设计、ISP编程、软件开发实例及系统的抗干扰措施.为帮助学生学习单片机技术,同时也为有经验者开发和调试产品打下基础. 相似文献
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高精度恒误差数字频率计设计 总被引：2，自引：0，他引：2
周欣 《南京气象学院学报》2000,23(3):435-439
基于高精度恒误差测频原理,采用Ｌａｔｔｉｃｅ的在系统可编程器件（ｉｓｐＬＳＩ）进行数字频率计设计。结果表明,高精度恒误差测频原理是合理的,并对所采用的高精度恒误差测频原理作了深入的理论分析,给出了依据此原理实现的硬件电路。 相似文献
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莱州湾西部地区环境条件的联合概率分析 总被引：2，自引：0，他引：2
在海洋环境条件联合概率分析理论的基础上，对莱州湾西部海的羊角沟地区进行了综合环境条件的联合概率分析，以模拟技术中的重点抽样法为理论根据峄该地区为水位ζ、风速Ｕ及波高Ｈ的三维随机变量作了统计分析，得出了多年一遇的各环境条件联合出现的数值，模拟结果令人满意。 相似文献
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InSAR是最近几年迅速发展起来的一种技术,因此关于SAR图像如何进行干涉处理还处在探索实验阶段,本文就以欧空局的ERS影像为例,说明利用GAMMA软件的ISP模块如何对SAR影像进行干涉处理以及需要注意的问题。 相似文献
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The Oscillating Water Column(OWC)wave energy convertor with the advantage of its simple geometrical construction and excellent stability is widely employed. Recently, perforated breakwaters have been often used as they can effectively reduce the wave reflection from and wave forces acting on the structures. Considering the similarity between the compartment of perforated caisson and the air chamber of OWC wave energy convertor, a new perforated caisson of breakwater is designed in this paper. The ordinary caisson is modified by installing facilities similar to the air chamber of OWC convener, but here they are utilized to dissipate the wave energy inside the caisson. Such an arrangement improves the stability of the caisson and reduces the construction cost by using the compartment of perforated caisson like using an air chamber. This innovation has both academic significance and important engineering value. For a new type of caisson, reliability analysis of the structure is necessary. Linear potential flow theory is applied to calculate the horizontal wave force acting on the caisson. The calculated results are compared with experimental data, showing the feasibility of the method. The Importance Sampling Procedure(ISP)is used to analyse the reliability of this caisson breakwater. 相似文献
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