Howtosignalprocessing
- What is linear equalizer and non-linear equalizer?
- What is nonlinear equalizer?
- What is linear Equalisation?
- What is linear equalizer in wireless communication?
What is linear equalizer and non-linear equalizer?
Non-linear equalizers are used in applications where the channel distortion is to severe for a linear equalizer to mitigate the effect of channel impairments. The reason for choosing non-linear equalizers over linear equalizer is that the latter's performance in channel that exhibit nulls is not effective.
What is nonlinear equalizer?
A nonlinear processor before the equalizer generates the needed nonlinear terms that are weighted and summed in the equalizer. Nonlinear intersymbol interference at the output of the differential detector is dealt with by minimizing an error signal between the output of the equalizer and the detected data.
What is linear Equalisation?
A linear-phase equalizer uses linear-phase filters. This means that when a signal goes through the filter, all frequencies should experience the same time delay (known as “pure time delay”), which preserves the wave shape as much as possible.
What is linear equalizer in wireless communication?
Linear equalizer: processes the incoming signal with a linear filter. MMSE equalizer: designs the filter to minimize E[|e|2], where e is the error signal, which is the filter output minus the transmitted signal. Zero-forcing equalizer: approximates the inverse of the channel with a linear filter.
