Designs a frequency-domain and time-domain FIR equalizer for

a single-input single-output (SISO) channel.



Frequency-domain equalization uses a Chebychev criteria and

is specified in terms of frequency response functions.

It is a convex problem (which can be formulated as an SOCP):

-

where H is the frequency response function and our variable

　is the filter impulse response h. Function G is the unequalized

　frequency response and G_des is the desired freq response.



　Time-domain equalization immediately designs the impulse

　response function by specifying the problem in time (it s an LP):



　　minimize　 max_{t neq D} |g_tilde(t)|

　　　　s.t.　 g_tilde(D) = 1