Howtosignalprocessing
- What is zero-forcing equalizer algorithm?
- What is the main disadvantage of zero forcing equalization?
- How does zero forcing work?
- What is an equaliser why an equaliser is called an inverse network?
What is zero-forcing equalizer algorithm?
The zero-forcing equalizer is a form of linear equalization algorithm used in communication systems which applies the inverse of the frequency response of the channel. This form of equalizer was first proposed by Robert Lucky.
What is the main disadvantage of zero forcing equalization?
A serious problem with the zero-forcing equalizer is the noise enhancement, which can result in infinite noise power spectral densities after the equalizer. The noise is enhanced (amplified) at frequencies where the channel has a high attenuation.
How does zero forcing work?
The Zero-Forcing Equalizer applies the inverse of the channel frequency response to the received signal, to restore the signal after the channel [21]. The name Zero Forcing corresponds to bringing down the intersymbol interference (ISI) to zero in a noise free case.
What is an equaliser why an equaliser is called an inverse network?
An equalizer within a receiver compensates for the average range of expected channel amplitude and delay characteristics. In other words, an equalizer is a filter at the mobile receiver whose impulse response is inverse of the channel impulse response.
