用ATMEGA32单片机实现FIR滤波器

2017 International Conference on Emerging Trends in Computing and Communication Technologies (ICETCCT) Pub Date : 2017-11-01 DOI:10.1109/ICETCCT.2017.8280325

Vaibhav Varshney, Manish Tiwari

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引用次数: 6

摘要

窗函数可用于设计具有线性相位有限脉冲响应(FIR)的滤波器。在硬件上实现了用于FIR滤波器设计的Kaiser窗方法。当使用传统的n位微控制器实现时，由于大多数滤波器系数之间建立了简单的关系，因此可以实现宽带滤波。在本文中，将采用线性规划方法来确定最佳窗口系数，该窗口系数不仅取决于滤波器的长度，而且取决于所需滤波器的规格。

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Realization of an FIR filter using ATMEGA32 microcontroller

Window functions can be used to design a filter having a linear phase finite impulse response (FIR). The Kaiser Window method for the design of FIR filters is implemented in hardware. It achieves wide band filtering when a conventional N-bit microcontroller is used for the implementation because of the simple relationship established among most of the filter coefficients. In this paper, linear programming method will be utilized to determine optimum window coefficients which depend not only on the length of the filter but also on the specifications of the desired filter.

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2017 International Conference on Emerging Trends in Computing and Communication Technologies (ICETCCT)

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