Conditions are derived, under which two linear-phase FIR filter transfer functions and have the power-complementary property, i.e., . It is shown that, the constraint of linear phase on the transfer functions strongly restricts the class of frequency responses that can be realized by a power-complementary pair.
Keywords :
FIR (finite-duration impulse-response) digital filters; Linear-phase filters; Audio systems; Circuits and systems; Filter bank; Finite impulse response filter; Frequency; Transfer functions;