When using two or more cascaded resonators to realize an equalizer, the cascaded S parameters can be calculated as 
The principle of modifying the E-field and H-fields distributions through local perturbations is used to design the equalizer. When the cavity dimensions are determined, by placing a probe together with a slot as a coupling structure, fields' distribution in the cavity has changed.
From all of the six simulations & graphical analyses, it is evident that BER tends to decrease dramatically for modified MMSE equalizer compared to ML, MMSE, MMSE-SIC, ZF, ZF-SIC and ZF-SIC-Sort equalizers.
Shankar Kumar, "Bit error rate performance analysis of ZF, ML and MMSE equalizers for MIMO wireless communication receiver," European Journal of Scientific Research ISSN 1450-216X, vol.
The semifinal was well fought with the Equalizers
battling it out with the EMRILL Celtics and University of Wollongong playing against SP Jain University.
Goal of a channel equalizer is to mitigate distortions caused by the communication channel and reduce ISI (Inter Symbol Interference).
Linear adaptive equalizer operation is based on the adaptive LMS filters.
Between 1 kHz and 10 kHz you get two parametric equalizers
, each with a +/-4 dB range.
This problem can be solved by adding an amplitude equalizer
to the bandpass filter or by inserting it into a proper position in the system.
OK, this kind of makes it looks like equalizers
are not all that helpful.
Getting back to dips and equalizers
, while this kind of response diddling with such a device can be interesting in larger rooms, it is in smaller rooms that the manipulation of midrange frequency response, either by an equalizer
or because of the way the speaker systems themselves are designed in terms of their midrange response, can sometimes do wondrous things.
In negative slope amplitude equalizers
of both ladder and non-ladder types, the goal is to have a specified loss at the low frequency end and zero loss at the high end of the band of interest.
Specifically, when one is using both the analyzer and one [or two] equalizers
, the sequence of connection to the preamp is not clear.
In the end I found that I could achieve somewhat better results, and do so more easily, by employing a thirty-band (one-third-octave) unit to smooth out every little dip and peak, without the need to also use a multitude of counter corrections to null out the overlap that inevitably happens when using equalizers
having one-octave-wide control settings, with their typically rather broad correction slopes.
Ngalula Mubenga, an electrical engineer at the University of Toledo, has developed a new technology referred to as a "bilevel equalizer
." The device combines the high performance of an active equalizer
with the low cost of the passive variety.