Antialiasing Encoder Interface With Sub-Nyquist Sampling

@article{Buckner2006AntialiasingEI,
  title={Antialiasing Encoder Interface With Sub-Nyquist Sampling},
  author={Zachary D. Buckner and Michael L. Reed and James H. Aylor},
  journal={IEEE Transactions on Instrumentation and Measurement},
  year={2006},
  volume={55},
  pages={2029-2033}
}
A technique is presented for reconstructing absolute position or angle from time-sampled outputs of incremental encoders. Unlike existing techniques, the new method is able to track analog quadrature outputs with frequency contents higher than the Nyquist frequency. The algorithm is described in detail, and both the existing and new methods are tested using… CONTINUE READING