Title :
On the design of linear phase, FIR integrators for midband frequencies
Author :
Kumar, Balbir ; Choudhury, D. Roy ; Kumar, Ashwani
Author_Institution :
Dept. of Electron. & Commun. Eng., Delhi Inst. of Technol., India
fDate :
10/1/1996 12:00:00 AM
Abstract :
The ideal frequency responses: 1/(jω) (an integrator) and 1/ω (an integrating Hilbert transformer) are usually approximated by IIR structures. This paper suggests their FIR approximations. Maximal flatness at ω=π/2 yields exact mathematical formulas for computing the weights. The proposed designs are particularly suitable for the frequency range: 0.1π⩽ω⩽0.90π
Keywords :
FIR filters; Hilbert transforms; delay circuits; digital filters; filtering theory; integration; FIR integrators design; IIR structures; frequency responses; integrating Hilbert transformer; linear phase; maximal flatness; midband frequencies; weight computation; Bandwidth; Baseband; Delay; Finite impulse response filter; Frequency response; IIR filters; Linear programming; Minimax techniques; Postal services; Signal processing;
Journal_Title :
Signal Processing, IEEE Transactions on
