基于FPGA的抗编码器抖动干扰的高精度编码技术

本文首先分析了增量式光电编码器的工作原理以及基于传统的DSP正交编码脉冲电路的工作原理，然后详细分析了增量式光电编码器抖动干扰脉冲的产生机理，说明这将导致基于DSP正交编码脉冲电路误计数。文中提出了一种基于FPGA的去编码器抖动干扰的编码电路，对该电路进行了仿真，仿真结果证明了本文设计方法的正确性。

A High Performance Encoding Technology with Twitter-interference Elimination Based on FPGA

This paper analyses the principle of incremental optical encoder and the quadrature encoder pulse circuit based on conventional DSPs. It also analyses the principle of dithering pulse produced by incremental optical encoder in detail, which will induce wrong pluses count number by quadrature encoder pulse circuit based on conventional DSPs. It proposes a high performance encoding technology with twitterinterference elimination based on FPGA, and takes simulation. Simulation results show the correctness of the proposed encoding circuit.