A design method of two-dimensional linear phase fir filters using Fritz John's theorem

Two Dimensional Linear Phase Multiband Chebyshev FIR Filters

In this paper we discuss a method to design 2 dimensional (2D) FIR filters with the help of Chebyshev polynomials. The polynomial is first converted into a 2D function and later a mapping function is used to design the filters. By the proposed technique one can design filters with various types of passband.

A class of reconfigurable and low-complexity two-stage Nyquist filters

This paper introduces a class of reconfigurable two-stage Nyquist filters where the Farrow structure realizes the polyphase components of linear-phase finite-length impulse response (FIR) filters. By adjusting the variable predetermined multipliers of the Farrow structure, various linear-phase FIR Nyquist filters and integer interpolation/decimation structures are obtained, online. However, the...

Design of Circularly Symmetric Two-Dimensional Linear-Phase Lowpass FIR Filters using Closed-Form Expressions

Adaptive interference suppression for CDMA systems with a worst-case error criterion

designing FIR fan filters suitable for the multibeam forming network of the wideband beamspace adaptive array. Characteristics were approximated through the combination of spectral transformation and the window method so that those beam patterns that included the sidelobe characteristics of the resulting fan filters were virtually frequency independent. Using the fan filters designed by the pro...

Design of Biorthogonal FIR Linear Phase Filter Banks with Structurally Perfect Reconstruction

In the design of two channel perfect reconstruction filter banks, most of the conventional methods optimize the frequency response of each filter to meet the perfect reconstruction condition. However, quantization of the filter coefficients results in some errors in the frequency response, so it is not guaranteed that the perfect reconstruction condition is still satisfied. In this paper, we pr...