• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Siberian Conference on Control and Communications >Analog/Digital Anti-Aliasing Filters
【24h】

Analog/Digital Anti-Aliasing Filters

机译：模拟/数字抗混叠滤波器

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The design issues of anti-aliasing filters (AAF), which are included in the input circuit of the analog sensor signals, are considered. Analog (AAAF) and digital (DAAF) AAFs provide a aliasing error (γA) at the time sampling of sensor signals in control and monitor systems (CMSs). It is shown that AAAF can't be formed only on the basis of DAAF. This is due to the fact that in CMSs the value γH is determined to a large extent by the parameters of input AAAF, without which it can not be done. The function of AAAFs can sometimes be discharged by unitizing transducers of sensors or simple additional analog filters of low order. Numerical values are determined in the NI LabVIEW software environment at low orders of the AAAF. It is shown that the efficiency of AAAF is improved with a decrease of the permitted value of γH. It is established that the calculation of the dynamic error of the analog-digital AAF is complicated by the signal delay, but the order of value of the error remains the same as in AAAF. It is concluded that the separation of filtering between the analog and digital parts of AAAF should be solved as a part of the task of allocation of the error in the input circuits of CMSs.
机译：考虑了包含在模拟传感器信号的输入电路中的抗混叠滤波器（AAF）的设计问题。模拟（AAAF）和数字（DAAF）AAF在控制和监视系统（CMS）中的传感器信号的时间采样提供锯齿误差（γA）。结果表明，AAAF不能仅基于DAAF来形成。这是由于CMSS中值γ的事实 h 在很大程度上通过输入AAAF的参数确定，没有它无法完成。 AAAF的功能有时可以通过将传感器的传感器或低阶的简单额外的模拟滤波器进行整合或简单的额外模拟滤波器来放电。在AAAF的低订单下，在NI LabVIEW软件环境中确定了数值。结果表明，随着γ的允许值的降低，改善了AAAF的效率 h 。建立模拟数字AAF的动态误差的计算通过信号延迟复杂，但误差的值顺序保持与AAAF中的相同。结论是，AAAF的模拟和数字部分之间的滤波的分离应作为CMS输入电路中的错误分配任务的一部分。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号