-
wojieliuliangji
涡街流量计数字信号处理系统的改进与实验
本文针对涡街流量计数字信号处理系统存在的不能测量小流量和易受电磁干扰的问题,对其软硬件方面进行了
改进。重新设计和研制了电荷放大器,提高了灵敏度,增强了适配能力。采取了合理的接地和屏蔽措施,提高了系统的抗干
扰能力。采用去均值和频谱校正的方法,改善了系统的测量精度。编制键盘监控软件,采用状态变量法设计键值分析程序,
实现人机对话功能。进行了液体流量和气体流量的标定实验,结果表明,改进后的数字信号处理系统比常规的流量计信号处
理系统的测量精度高、流程比宽和适配能力强。(Vortex Flowmeter digital signal processing system improvements and experimental
In this paper, vortex flowmeter digital signal processing systems can not exist in measuring small flows and vulnerable to electromagnetic interference problems, its hardware and software aspects of the
Improvement. To re-design and development of the charge amplifier, increasing sensitivity and enhanced adaptive capacity. Adopted a reasonable grounding and shielding measures to improve the system s anti-stem
Interference capability. Used to mean and spectral correction methods to improve the system s measurement accuracy. The preparation of keyboard monitoring software, using state-variable method designed to key analytical procedures,
Functions to achieve human-machine dialogue. Were liquid flow and gas flow calibration experiments, the results show that the improved digital signal processing systems than the conventional flow meter signal at
Management System s high accuracy, process than the w)
- 2010-02-01 08:14:53下载
- 积分:1
-
KlingnerPhD_small
一篇关于四面体网格优化的非常详细和全面的论文(tetrahedral improvement)
- 2012-03-09 20:56:36下载
- 积分:1
-
javastack
stackflow in java swingsource code
- 2010-01-16 23:17:11下载
- 积分:1
-
基于DFT的MIMO-OFDM系统的信道估计算法研究代码
说明: MIMO系统仿真 MIMO技术可W极大地提升系统吞吐量和有效抵抗多径衰落的影响,被视作LTE的核也技术之一。信号检测模块又是MIMO系统中非常重要的一步,因为接收端收到的信号是经历了无线信道衰落影响的信号,与发送端发送的初始值之间差距较大,因此,在接收端首先应进行信道估计求出信道矩阵H,然后根据该信道矩阵的信息,从接收端还原出发送信号。因此,在MIMO系统中信号检测直接彰响着系统系能的提升。本章将先介绍高移动性MIMO无线信道的建模方法(simulation of MIMO-OFDM communication system)
- 2021-04-11 19:58:57下载
- 积分:1
-
1
说明: 有源电力滤波器中谐波电流检测的研究,一篇学术论文,还是有比较大的参考意义。(Research on harmonic current detection of active power filter, an academic paper, or a larger reference value.)
- 2013-04-03 19:35:19下载
- 积分:1
-
BIT1612
BIT1612使用说明书,包括详细的电路设计参考文件,(BIT1612 Manual, including the detailed circuit design reference document,)
- 2008-05-07 19:45:30下载
- 积分:1
-
UML
基于UML的食堂就餐卡系统的分析与设计
(UML-based cafeteria dining card system analysis and design of)
- 2009-12-17 15:49:47下载
- 积分:1
-
k-19
Digital bird kit circuit design
- 2011-10-11 13:30:29下载
- 积分:1
-
n
说明: 这是一篇硕士论文:论述了矢量控制的理、坐标变换矩阵和三相异步电机的基本方程式,推导出了异步电机在不同坐标系下的数学模型,实现了异步电机转矩电流、励磁电流的解耦,然后分析、比较了无速度传感器矢量控制的各种方法的原理及优缺点,对常用的自适应法和反电动势法进行了更为详细的原理和仿真比较,并将带速度传感器控制系统的性能和无速度传感器控制系统的性能进行了比较;最后设计了模糊控制器对电机定子电阻进行在线检测,增强矢量控制系统的鲁棒性。(This is a master s thesis : the vector control of the administration, the transformation matrix and coordinate with a three wire asynchronous the motor of the basic formula of the asynchronous motor, resulting in a different coordinate system of mathematical model, the realization of the asynchronous the motor turned the current, the solution urges, and then analyzing and my speed sensor vector control of theprinciples and commonly used to act against the law and pose a more detailed and emulation, and will take speed sensor control)
- 2011-07-13 10:19:19下载
- 积分:1
-
Nickel-metal-hydride-batterythe-encyclopedia
battery NiMH Charging
- 2013-08-06 14:46:13下载
- 积分:1