共查询到18条相似文献,搜索用时 125 毫秒
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MEMS的系统级设计对保证其整体综合性能和合理开发MEMS产品至关重要.针对MEMS的多能量域耦合、多信号混合的特点以及能量非保守等特殊要求,提出了基于多端口组件网络的MEMS系统级建模方法--采用多端口组件表示MEMS的功能结构部件,组件与组件通过端口联成网络表示整个系统;用统一规范化的微分代数方程表征并用硬件描述语言表述多端口组件.针对梁等具体的MEMS功能结构部件,采用宏建模方法确定其行为方程,从而得到有特定物理意义的、可供重用的组件模型.最后,给出了微加速度计的基于多端口组件网络方法的系统级设计示例. 相似文献
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MEMS系统级设计与基于多端口组件网络的建模方法 总被引:2,自引:0,他引:2
MEMS的系统级设计对保证其整体综合性能和合理开发MEMS产品至关重要。针对MEMS的多能量域耦合、多信号混合的特点以及能量非保守等特殊要求,提出了基于多端口组件网络的MEMS系统级建模方法——采用多端口组件表示MEMS的功能结构部件,组件与组件通过端口联成网络表示整个系统;用统一规范化的微分代数方程表征并用硬件描述语言表述多端口组件。针对梁等具体的MEMS功能结构部件,采用宏建模方法确定其行为方程,从而得到有特定物理意义的、可供重用的组件模型。最后,给出了微加速度计的基于多端口组件网络方法的系统级设计示例。 相似文献
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微机电系统是典型的多领域复杂系统,需要一种能够将复杂组件和子系统紧密集成跨领域的通用建模和仿真方法.介绍了微机电系统设计和仿真的现状,给出了基于端口的多领域建模概念,分析了其建模基础和基于VHDL-AMS、键合图和线图的实现方法,并给出了组件层次仿真的实现方法.分析表明,基于端口的建模实现了多领域物理现象的统一描述,并通过界面与实现的分离,实现了自上而下的层次化建模,可用一种仿真语言和仿真器实现整个MEMS系统的建模与仿真. 相似文献
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在简述System C的设计方法和流程的基础上,针对SystemC在硬件芯片系统级设计和寄存器传输级设计的特点,以Turbo编码器为对象和开发目的,研究了SystemC基于寄存器传输级设计的可实现性,利用SystemC的模块化功能,通过分析Turbo编码器的结构与信号流图,进行建模仿真直到最后完成划分硬件模块与编程并在FPGA完成其实现与验证,充分证明了SystemC完全适用于基于寄存器传输级设计的IC应用.此外,此设计将系统级设计与寄存器传输级设计的工作合二为一,大大节省了开发的流程时间. 相似文献
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基于部件库的MEMS设计方法 总被引:1,自引:0,他引:1
针对当前MEMS设计工具中机械性能评测不充分的问题 ,提出了基于部件库的MEMS设计方法 ;介绍了部件及部件库的概念和基于部件库的MEMS设计环境的总体结构及关键技术。完成了各关键技术的攻关 ,并建立了一个原形系统。 相似文献
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针对飞控系统建模中的模型重用问题,改进面向虚拟样机的系统分析和描述方法,提出一种基于系统工程建模语言(SysML)组件(BSC)的飞行控制系统虚拟样机模型重用方法,即"部件、结构;行为、过程"(US-BP)方法;以某型四旋翼无人机为例,说明了飞控系统虚拟样机支持模型重用的实现方式,即基于SysML组件与Simulink组件的仿真设计与实现方法。本文为飞控系统建模与仿真领域中的模型重用提供了重要的技术途径。 相似文献
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针对当前MEMS设计工具中机械性能评测不充分的问题,提出了基于部件库的MEMS设计方法;介绍了部件及部件库的概念和基于部件库的MEMS设计环境的总体结构及关键技术.完成了各关键技术的攻关,并建立了一个原形系统. 相似文献
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基于部件库的 MEMS 设计方法 总被引:2,自引:0,他引:2
针对当前MEMS设计工具中机械性能评测不充分的问题,提出了基于部件库的MEMS设计方法;介绍了部件及部件库的概念和基于部件库的MEMS设计环境的总体结构及关键技术.完成了各关键技术的攻关,并建立了一个原形系统. 相似文献
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Geometric nonlinear behaviors of micro resonators have attracted extensive attention of MEMS (microelectro-mechanical systems) researchers, and MEMS transducers utilizing these behaviors have been widely researched and used due to the advantages of essentially digital output.Currently, the design of transducers with nonlinear behaviors is mainly performed by numerical method and rarely by system level design method.In this paper, the geometric nonlinear beam structure was modeled and established as a reusable library component by system level modeling and simulation method MuPEN (multi port element network).A resonant accelerometer was constructed and simulated using this model together with MuPEN reusable library.The AC (alternating current) analysis results of MuPEN model agreed well with the results of architect model and the experiment results shown in the existing reference.Therefore, we are convinced that the beam component based on MuPEN method is valid, and MEMS system level design method and related libraries can effectively model and simulate transducers with geometric nonlinear behaviors if appropriate system level components are available. 相似文献
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针对微机电系统(MEMS)陀螺仪数据误差建模不精确或无法给出模型的情况,提出了误差反馈(BP)神经网络辅助卡尔曼滤波对陀螺仪数据进行降噪处理的方法。分析卡尔曼滤波器的系统噪声方差Q矩阵可知,当模型不精确时可通过Q补偿。基于BP神经网络优化Q值原理,首先把采集到的MEMS陀螺仪数据输入卡尔曼滤波器得到Q;再把新息、滤波增益、量测噪声方差输入神经网络,把Q作为神经网络的输出,神经网络优化系统噪声协方差矩阵得到Q*;最后将Q*作为卡尔曼滤波算法系统噪声方差矩阵。实验结果表明,在建模不精确的情况下该方法也能有效提高陀螺仪的精度。 相似文献
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D. M. Grigor’ev I. V. Godovitsyn V. V. Amelichev S. S. Generalov 《Russian Microelectronics》2018,47(3):211-216
The frequency response of a MEMS microphone is largely dependent on the design and size of the package. The location and size of the acoustic port, the dimensions of the front and back chamber, and the packaging material are of key importance. In this paper we present the results of calculating the frequency response of a MEMS microphone obtained by finite element modeling (FEM) for two main types of packaging with different positions of the acoustic port. The simulation results are analyzed and compared to the measured frequency response of the MEMS microphone. 相似文献
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A technique is presented for modeling and simulating AC spacecraft power systems by combining all component models into an overall system model. Each component in the spacecraft power system is treated as a two-port network. A state model is written for each two-port network with the port voltages as the inputs. Each component state model is solved independently using the state transition matrix approach and assuming that its inputs are constant. The inputs to all components are then calculated using network analysis principles. As an example, a 20 kHz system is simulated using this approach, and the results are compared with those of a SPICE2 simulation 相似文献
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Jaewoo Lee Chang Han Je Sungweon Kang Chang-Auck Choi 《Microwave Theory and Techniques》2005,53(11):3335-3344
A low-loss single-pole six-throw (SP6T) switch using very compact metal-contact RF microelectromechanical system (MEMS) series switches is presented. The metal-contact MEMS switch has an extremely compact active area of 0.4 mm /spl times/ 0.3 mm, thus permitting the formation of an SP6T MEMS switch into the RF switch with a total area of 1 mm/sup 2/. The MEMS switch shows an effective spring constant of 746 N/m and an actuation time of 8.0 /spl mu/s. It has an isolation loss from -64.4 to -30.6dB and an insertion loss of 0.08-0.19 dB at 0.5-20 GHz. Furthermore, in order to evaluate RF performances of the SP6T MEMS switch, as well as those of the single-pole single-throw RF MEMS series switch, we have performed small-signal modeling based on a parameter-extraction method. Accurate agreement between the measured and modeled RF performances demonstrates the validity of the small-signal model. The SP6T switch performed well with an isolation loss from -62.4 to -39.1dB and an insertion loss of 0.19-0.70 dB from dc to 6 GHz between the input port and each output port. 相似文献
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