Guangtongxin yanjiu, 2012 针对FM（调频）信号数字化解调中叉积鉴频法存在占用资源大、精度低和只适用于窄带信号解调的缺点,采用了一种改进的解调算法,该算法通过改变对I路和Q路信号的处理方法,避免计算近似反正切值,最大限度降低了算法复杂程度,实现了占用资源小、精度高和满足窄带和宽带信号的解调。经MATLAB软件仿真并利用Quartus II 11.0软件基于Cyclone III芯片设计仿真,验证了该算法是可行的。
刘立, 向新, 孙晔, 王锋
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[Progresses on temporal interference electromagnetic stimulation for non-invasive deep brain function modulation]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiZhou T, Yu P, Xu Y.
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Sheng Wu Yi Xue Gong Cheng Xue Za ZhiCui C, Wang T, Zhang Y, Zheng W, Xu G.
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Hua Xi Kou Qiang Yi Xue Za ZhiChen L, Wang X, Zhu K, Ren K, Wu Z.
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Gaoya dianqi针对高比例风电并网背景下，构网型直驱风电机组存在功率输出波动大、主动支撑能力不足、调频调压参与度有限等问题，提出一种构网型储能与九开关统一电能质量调节器相结合的新型拓扑与协调控制策略。首先，构建了该拓扑下的完整数学模型，并提出构网型储能基于虚拟同步机机制的有功调节与惯性支撑控制方法；其次，通过构建协调控制框架，实现储能系统与UPQC在扰动下的动态响应互补，以提升系统整体的频率稳定性与电压支撑能力；最后，在MATLAB/Simulink中搭建系统模型并设置了风功率波动、频率扰动和严重电压跌落3类典型工况 ...
范嘉炜 +5 more
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[Effects of 40 Hz light flicker stimulation on hippocampal-prefrontal neural activity characteristics during working memory tasks in Alzheimer's disease model rats]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiLiu S, Wang L, Li S, Xu G.
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[Bayesian network analysis of harsh parenting, experiential avoidance, and adolescent short video addiction risk]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiLyu LH +5 more
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[Research progress on combined transcranial electromagnetic stimulation in clinical application in brain diseases]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiWei Y, Wang T, Wang C, Zhang Y, Xu G.
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Gaoya dianqi大规模可再生能源的高效利用是实现“碳达峰”、“碳中和”目标的重要途径。为提升风储联合系统调频精度，充分利用可再生能源解决电力系统的频率调节问题，文中建立了飞轮储能系统（FESS）模型，研究了飞轮储能阵列协调控制策略。针对负荷扰动前、后频率变化不同及频率变化率不同两种特殊情形，设计了自适应变下垂系数的控制策略，修正了各飞轮储能的放电速度，同时考虑飞轮储能荷电状态（SOC）约束限制，实现了储能系统对负荷变化的快速跟踪，达到了稳定频率的预期目的。最后，采用PSCAD/EMTDC大型数字化仿真软件进行仿真测试 ...
张继红 +4 more
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