Minimax design of MD sparse FIR filters with arbitrary frequency response using SOCP

AL Jayaweera, D Pakiyarajah… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The number of coefficients of multi-dimensional (MD) finite-extent impulse response (FIR)
filters increases exponentially with the number of dimensions leading to significantly high …

A 16-element 2.4-GHz multibeam array receiver using 2-D spatially bandpass digital filters

SK Pulipati, V Ariyarathna… - … on Aerospace and …, 2019 - ieeexplore.ieee.org
This paper presents the design, implementation, and the experimental verifications of a 2.4-
GHz multibeam array receiver based on two-dimensional (2-D) spatially bandpass (SBP) …

A 4-D sparse FIR hyperfan filter for volumetric refocusing of light fields by hard thresholding

SU Premaratne, CUS Edussooriya… - 2018 IEEE 23rd …, 2018 - ieeexplore.ieee.org
A low-complexity 4-D sparse FIR hyperfan filter is proposed for volumetric refocusing of light
fields. By exploiting the partial separability of the spectral region of support of a light field, the …

[HTML][HTML] Nearly Linear-Phase 2-D Recursive Digital Filters Design Using Balanced Realization Model Reduction

A Omar, D Shpak, P Agathoklis - Signals, 2023 - mdpi.com
This paper presents a new method for the design of separable-denominator 2-D IIR filters
with nearly linear phase in the passband. The design method is based on a balanced …

Real-time 2-D FIR trapezoidal digital filters for 2.4 GHz aperture receiver applications

V Ariyarathna, VA Coutinho, S Pulipati… - 2018 Moratuwa …, 2018 - ieeexplore.ieee.org
This paper presents the implementation of a two-dimensional (2-D) finite-impulse-response
(FIR) trapezoidal filter based beamforming array receiver. A 2.4 GHz 16-element receive …

A low-complexity 2-D FIR parallelogram filter for broadband beamforming with sparse linear arrays

D Pakiyarajah, CUS Edussooriya… - 2023 Moratuwa …, 2023 - ieeexplore.ieee.org
Broadband beamformers designed as two-dimensional (2-D) spatially-interpolated finite-
extent impulse responses (FIR) filters, using a cascade structure, cannot employ sparse …

Minimax Design of MD Interpolated FIR Filters using Convex-Concave Procedure

P Nanthakumar, CUS Edussooriya… - … on Circuits and …, 2024 - ieeexplore.ieee.org
We propose a minimax design method for multi-dimensional (MD) interpolated finite-support
impulse response (IFIR) filters. As a result of the cascade structure of an MD IFIR filter, the …

Optimal digital design of steerable differentiators with the flatness of polynomial filters and the isotropy of Gaussian filters

HL Kennedy - Journal of Electronic Imaging, 2018 - spiedigitallibrary.org
Digital filters with separable realizations and steerable responses are ideal for processing
multidimensional signals, eg, two-dimensional (2-D) images, in high-throughput sensor …

A 3-D sparse FIR frustum filter for enhancing broadband plane waves

RT Wijesekara, CUS Edussooriya… - … on Circuits and …, 2018 - ieeexplore.ieee.org
A 3-D finite-extent impulse response (FIR) frustum filter having sparse coefficients is
proposed for enhancing broadband plane waves (PWs) received by uniform aperture arrays …

A Spatially-Interpolated Beamformer using a Parallel Structure with Sparse Linear Arrays

D Pakiyarajah, CUS Edussooriya… - 2024 Moratuwa …, 2024 - ieeexplore.ieee.org
A spatially-interpolated (SI) beamformer is proposed in this paper to enhance narrowband
plane waves received by a sparse linear antenna array. Similar to a conventional SI filter …