UoM IR
→
Research Publications
→
Conference Proceedings
→
UoM Conferences
→
Browsing UoM Conferences by Author

Browsing UoM Conferences by Author "Madanayake, A"

Now showing items 1-17 of 17

A 480mhz roach-2 fpga realization of 2-phase 2-d iir beam filters for digital rf apertures

Seneviratne, V; Madanayake, A; Bruton, LT [Conference-Full-text]

RF antenna array beamforming based on electronically steerable wideband phased-array apertures find applications in communications, radar, imaging and microwave sensing. High-bandwidth requirements for wideband RF ...
Aperture-Array Directional Sensing using 2-D Beam Digital Filters with Doppler-Radar Front-Ends

Randeny, T; Madanayake, A; Sengupta, A; Li, Y; Li, C [Conference-Full-text]

A directional sensing algorithm is proposed employing doppler radar and low-complexity 2-D IIR spatially bandpass filters. The speed of the scatterer is determined by the frequency shift of the received signal following ...
Aperture-array directional Sensing using 2-D Beam Digital Filters with Doppler-Radar Front-Ends

Randeny, T; Madanayake, A; Sengupta, A; Li, Y; Li, C [Conference-Abstract]

A directional sensing algorithm is proposed employing doppler radar and low-complexity 2-D IIR spatially bandpass filters. The speed of the scatterer is determined by the frequency shift of the received signal following ...
Delta-sigma noise shaping in 2d spacetime for uniform linear aperture array receivers

Handagala, S; Madanayake, A; Belostotski, L; Bruton, LT [Conference-Full-text]

A multi-dimensional noise-shaping method based on delta-sigma modulation has been proposed. This method extends delta-sigma modulation into the two-dimensional (2-D) case (space, time). The proposed noise-shaping method ...
Design methodology of an analog 9-beam squint-free wideband IF multi-beamformer for mmW applications

Ariyarathna, V; Udayanga, N; Madanayake, A; Perera, SM; Belostotski, L; Cintra, RJ [Conference-Abstract]

An intermediate frequency (IF) squinting-free multi-beamforming method is proposed for multi-antenna systems. The proposed approach uses a low-complexity factorization of a true-time-delay (TTD) multi-beam matrix, which ...
Energy-efficient ULF/VLF transmitters based on mechanically-rotating dipoles

Madanayake, A; Choi, S; Tarek, M; Dharmasena, S; Mandal, S; Glickstein, J; Sehirlioglu, A [Conference-Abstract]

We describe the design of miniaturized powerefficient ULF/VLF (0.3-30kHz) transmitters for underground and undersea wireless communications based on the mechanical rotation of permanently-polarized dipoles. The concept is ...
Implementation and testing of a switching circulator for twin-pair star radio architectures

De Silva, U; Malavipathirana, H; Pulipati, S; Bhardwaj, S; Mandal, S; Madanayake, A [Conference-Full-text]

Realization of simultaneous transmit and receive (STAR) wireless systems is desirable for spectral efficiency but challenging due to difficulties in isolating the receiver from the transmitter. A twin-pair STAR architecture ...
A low-complexity 2-d fir parallelogram filter for broadband beamforming with sparse linear arrays

Pakiyarajah, D; Edussooriya, CUS; Wijenayake, C; Madanayake, A [Conference-Full-text]

Broadband beamformers designed as twodimensional (2-D) spatially-interpolated finite-extent impulse responses (FIR) filters, using a cascade structure, cannot employ sparse linear arrays despite significantly reducing the ...
Minimax design of m-d complex-coefficient fir filters with nearly-constant low group delays

Pakiyarajah, D; Edussooriya, CUS; Wijenayake, C; Madanayake, A [Conference-Full-text]

The optimal designs of multi-dimensional (M-D) complex-coefficient finite-extent impulse response (FIR) filters with low group delays predominantly consider only the minimization of the frequency response error. This ...
Multi depth-velocity filters for enhancing multiple moving objects in 5-d light field videos

Liyanage, N; Jayaweera, SS; Edussooriya, CUS; Wijenayake, C; Madanayake, A; Agathoklis, P; Bruton, L; Ambikairajah, E [Conference-Full-text]

A moving object in a five-dimensional (5-D) light field video (LFV) can be selectively enhanced using the depth and the velocity of the object. In this paper, a 5-D depth-velocity (DV) filter is proposed to enhance ...
Multi-beam 8 × 8 RF aperture digital beamformers using mMultiplierless 2-D FFT appro ximations

Kulasekera, S; Madanayake, A; Wijenayake, C; Bayer, FM; Suarez, D; Cintra, RJ [Conference-Abstract]

The two-dimensional (2-D) discrete Fourier transform (DFT) is widely used in digital signal processing (DSP) and computing applications. Fast Fourier transforms (FFTs) are widely used as low-complexity algorithms for the ...
Multi-Beam 8 × 8 RF Aperture Digital Beamformers Using Multiplierless 2-D FFT Approximations

Kulasekera, S; Madanayake, A; Wijenayake, C; Bayer, FM; Cintra, RJ [Conference-Full-text]

The two-dimensional (2-D) discrete Fourier transform (DFT) is widely used in digital signal processing (DSP) and computing applications. Fast Fourier transforms (FFTs) are widely used as low-complexity algorithms for ...
An Overview of Multi-Dimensional RF Signal Processing for Array Receivers

Madanayake, A; Wijenayake, C; Belostotski, L; Bruton, Len T [Conference-Full-text]

In this review paper, recent advancements in multidimensional (MD) spatio-temporal signal processing for highlydirectional radio frequency (RF) antenna array based receivers are discussed. MD network-resonant beamforming ...
An Overview of multi-dimensional RF signal processing for array receivers

Madanayake, A; Wijenayake, C; Belostotski, L; Bruton, LT [Conference-Abstract]

In this review paper, recent advancements in multidimensional (MD) spatio-temporal signal processing for highlydirectional radio frequency (RF) antenna array based receivers are discussed. MD network-resonant beamforming ...
Real-time 2-d fir trapezoidal digital filters for 2.4 ghz aperture receiver applications

Ariyarathna, V; Coutinho, VA; Pulipati, S; Madanayake, A; Wijesekara, RT; Edussooriya, CUS; Bruton, LT; Gunaratne, TK; Cintra, RJ [Conference-Full-text]

This paper presents the implementation of a twodimensional (2-D) finite-impulse-response (FIR) trapezoidal filter based beamforming array receiver. A 2.4 GHz 16-element receivemode IQ array is designed and used for ...
Real-Time FPGA-Based multi-beam directional sensing of 2.4 GHz ISM RF sources

PulipatI, S; Ariyarathna, V; Edussooriya, CUS; Wijenayake, C; Wang, X; Madanayake, A [Conference-Abstract]

A real-time directional sensing system is proposed for 2:4 GHz ISM band by exploiting the concept of spatiotemporal spectral white spaces. The proposed system consists of a 16-element patch antenna array, an FFT-based ...
Xilinx rf-soc-based digital multi-beam array processors for 28/60 ghz wireless testbeds

Pulipati, S; Ariyarathna, V; Dhananjay, A; Eltayeb, ME; Mezzavilla, M; Jornet, JM; Mandal, S; Bhardwaj, S; Madanayake, A [Conference-Full-text]

Emerging wireless applications such as 5G cellular, large intelligent surfaces (LIS), and holographic massive MIMO require antenna array processing at mm-wave frequencies with large numbers of independent digital ...

Now showing items 1-17 of 17

Search UoM-IR

Browse

All of UoM-IR
This Community
- Authors
- Titles
- Subjects
- Faculty
- Acc. No.
- Document Type
- Year
- Conference Proceedings

Browsing UoM Conferences by Author "Madanayake, A"

Browsing UoM Conferences by Author "Madanayake, A"

Search UoM-IR

Browse

All of UoM-IR

This Community

My Account