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 …

Recurrent-neural-network-based polynomial noise resistance model for computing dynamic nonlinear equations applied to robotics

M Liu, J Li, S Li, N Zeng - IEEE Transactions on Cognitive and …, 2022 - ieeexplore.ieee.org
The solution of dynamic nonlinear equations plays an important role in the control of
complex systems. However, as a common physical phenomenon, noise seriously affects the …

Frequency-multiplexed array digitization for MIMO receivers: 4-Antennas/ADC at 28 GHz on xilinx ZCU-1285 RF SoC

N Akram, A Madanayake, S Pulipati… - IEEE …, 2021 - ieeexplore.ieee.org
Communications at mm-wave frequencies and above rely heavily on beamforming antenna
arrays. Typically, hundreds, if not thousands, of independent antenna channels are used to …

Circular Array N-Beam Digital Beamformer having Low Arithmetic Complexity: 16 Simultaneous 100 MHz Beams at 2.4 GHz

V Ariyarathna, A Madanayake - IEEE Transactions on Radar …, 2023 - ieeexplore.ieee.org
This paper proposes a-element uniform circular array (UCA)-beam multibeam beamformer
having arithmetic complexity. The architecture achieves a reduction of the arithmetic …

A novel multi-dimensional zero-phase IIR notch filter with independently-tunable multiple notches

CUS Edussooriya, T Chandima - Multidimensional Systems and Signal …, 2022 - Springer
We propose a novel multi-dimensional zero-phase infinite impulse response (IIR) notch filter
having multiple independently-tunable notches. The proposed notch filter employs a …

Multibeam Wideband Transmit Beamforming Using 2D Sparse FIR Trapezoidal Filters

N Dissanayake, CUS Edussooriya… - Journal of Low Power …, 2024 - mdpi.com
A low-complexity multibeam wideband transmit beamformer using a 2D sparse FIR filter
design capable of multiple beams is proposed as a digital building block for fully digital …

An X-Band CMOS digital phased array radar from hardware to software

YM Wu, HC Chou, CY Ke, CC Wang, CT Li, LH Chang… - Sensors, 2021 - mdpi.com
Phased array technology features rapid and directional scanning and has become a
promising approach for remote sensing and wireless communication. In addition, element …

Minimax Design of MD Complex-Coefficient FIR Filters with Nearly-Constant Low Group Delays

D Pakiyarajah, USC Edussooriya… - 2023 Moratuwa …, 2023 - ieeexplore.ieee.org
The optimal designs of multi-dimensional (MD) complex-coefficient finite-extent impulse
response (FIR) filters with low group delays predominantly consider only the minimization of …

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 …

WLS design of MD complex-coefficient FIR filters with low group delay using second-order cone programming

D Pakiyarajah, SS Jayaweera… - … on Circuits and …, 2021 - ieeexplore.ieee.org
We propose a weighted least-squares (WLS) design method for multi-dimensional (MD)
complex-coefficient finite-extent impulse response (FIR) filters. We consider the general form …