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基于微控制器(MCU)设计了一个通用的四维混沌系统数字硬件实验电路,由此实现了9×7网格涡卷的混沌和超混沌吸引子的生成.本文基于由Colpitts振荡器模型延伸出的四维多涡卷超混沌系统,通过引入单位锯齿波函数替换原系统中的三角波函数,构建了一个便于MCU数字硬件实现的新的网格涡卷超混沌系统,并对新系统网格涡卷吸引子的形成机理进行了分析和数值仿真.通过采用Euler算法对新系统进行离散化,在实验电路的有效动态范围内可以生成比原系统更多网格涡卷数量的吸引子.实验结果有效验证了本文基于MCU实现的网格涡卷超混沌 相似文献
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单片机低频信号发生器 总被引:4,自引:0,他引:4
介绍利用单片机控制,采用频率锁相技术实现的低频信号发生器的软硬件结构及工作原理。该信号发生器能输出正弦波、方波、三角波、锯齿波四种波形,具有频率和幅值控制方便、准确、稳定度好的优点。 相似文献
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为使原本用于人工地震测深野外数据采集的PDS型地震仪能够适用于超密集流动台阵野外观测,设计了一种基于Apollo2微控制器的具备GNSS校钟同步和仪器工作参数动态设置功能的外置即插即用式自动控制装置.经室内测试运行和野外比对测试实验,该装置运行稳定可靠,能满足野外超密集台阵长期连续工作的需要. 相似文献
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The geotechnical consortium 《Marine Georesources & Geotechnology》2013,31(4):297-339
During Leg 75 of the Deep Sea Drilling Project (DSDP) from the D/V Glomar Challenger, a 200‐m deep hole was drilled at Hole 532A on the eastern side of Walvis Ridge at a water depth of 1331 m. Sediment cores were obtained by means of a hydraulic piston corer. All of the cores from this boring were designated for geotechnical studies and were distributed among eight institutions. The results of laboratory studies on these sediment cores were compiled and analyzed. Sediment properties, including physical characteristics, strength, consolidation, and permeability were studied to evaluate changes as a function of depth of burial. It was concluded that the sediment profile to the explored depth of 200 m at Walvis Ridge consists of approximately 50 m of foram‐nannofossil marl (Subunit la) over 64 m of diatom‐nannofossil marl (Subunit 1b) over nannofossil marl (Subunit lc) to the depth explored. All three sediment units appear to be normally consolidated, although some anomalies seem to exist to a depth of 120 m. No distinct differences were found among the sediment properties of the three subunits (la, 1b, and lc) identified at this site. 相似文献
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针对海洋环境监测系统中供电电池组有限储能与仪器长期工作之间的矛盾,进行了自治式海洋环境监测系统的低功耗研究.从节能降耗、充分利用水体能源出发,将定点锚泊潜标和浮标技术相结合,采用双浮体技术,基于能量守恒,研制了一种储能型的传动装置;在分析了影响系统功耗的各种因素的基础上,对单片机数据采集控制存储系统进行了低功耗设计,为海洋环境监测系统长期在位作业提供了有力的能源保证,很好地解决了海洋环境监测系统的能源供应问题,使得该系统可以依靠单一的传感器组完成深达55 m以上的水体次表层海洋要素的长期连续垂直剖面观测. 相似文献
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