This program designs four types of linear phase finite impulse response filters.(1) Equiripple Linear Phase Filter (multiple passbands and stopbands).(2) Equiripple Linear Phase Filter (multiple passbands and stopbands). (3) Equiripple Differentiator (4)Equiripple Hilbert Transform Filter.-This program designs four types of linear phase finite impulse response filters.(1) Equiripple Linear Phase Filter (multiple passbands and stopbands).(2)　Equiripple Linear Phase Filter (multiple passbands and stopbands). (3) Equiripple Differentiator (4)Equiripple Hilbert Transform Filter.