Nonlinear line echo cancellation using a simplified second order Volterra filter

@article{Kuech2002NonlinearLE,
  title={Nonlinear line echo cancellation using a simplified second order Volterra filter},
  author={Fabian Kuech and Walter Kellermann},
  journal={2002 IEEE International Conference on Acoustics, Speech, and Signal Processing},
  year={2002},
  volume={2},
  pages={II-1117-II-1120}
}
This paper deals with nonlinearities in line echo cancellation. If a high attenuation of the echo signal is required, the nonlinear behaviour of the actual echo path has to be taken into account. As the echo path inherently has memory, the nonlinear approaches have to be capable to model nonlinear systems with memory. Adaptive Volterra filters represent a common method to deal with such systems. Unfortunately, they suffer from a high computational complexity. Therefore, we propose an adaptive… CONTINUE READING