Prof. Ram M. Narayanan Profile

Prof. Ram M. Narayanan

Professor of Electrical Engineering at The Pennsylvania State Univ.

SPIE Involvement:

Conference Program Committee | Track Chair | Author

Area of Expertise:

radar , imaging , photonics , remote sensing , networking

Publications (202)

SPIE Journal Paper | 9 July 2024

Radar spectrum-image fusion using dual 2D-3D convolutional neural network to transformer inspired multi-headed self-attention bi-long short-term memory network for vehicle recognition

Ferris Arnous, Ram Narayanan

JEI, Vol. 33, Issue 04, 043010, (July 2024) https://doi.org/10.1117/12.10.1117/1.JEI.33.4.043010

KEYWORDS: Signal to noise ratio, Education and training, Radar, Data modeling, Image fusion, Feature fusion, Image segmentation, Synthetic aperture radar, Visualization, 3D modeling

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Proceedings Article | 10 June 2024 Presentation

Combining random apertures and the recursive sidelobe minimization algorithm to reduce artifacts in sparse imaging

Brian Phelan, Colin Kelly, Traian Dogaru, Ram Narayanan

Proceedings Volume 13048, 130480A (2024) https://doi.org/10.1117/12.3014045

KEYWORDS: Detection and tracking algorithms, Data modeling, Attenuation, Sampling rates, Radar, Optical coherence, Iterative methods, Image resolution, 3D image processing, 3D acquisition

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Proceedings Article | 10 June 2024 Presentation

Frequency center randomization in the recursive sidelobe minimization algorithm

Colin Kelly, Brian Phelan, Traian Dogaru, Ram Narayanan

Proceedings Volume 13048, 130480D (2024) https://doi.org/10.1117/12.3014063

KEYWORDS: Detection and tracking algorithms, Data modeling, 3D image processing, Synthetic aperture radar, Radar

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Proceedings Article | 7 June 2024 Presentation + Paper

Electromagnetic modeling and analysis of micro-Doppler characteristics of simulated human limping gaits

Cunhao Zeng, Ram Narayanan, Cayce Onks

Proceedings Volume 13048, 130480S (2024) https://doi.org/10.1117/12.3013558

KEYWORDS: Gait analysis, Doppler effect, Radar signal processing, Analytical research, Signal detection, Radar sensor technology, Radar, Motion analysis, Modeling, Electromagnetism

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Proceedings Article | 7 June 2024 Presentation + Paper

Extending language-based cost functions with deep learning

Jackson Zaunegger, Paul Singerman, Ram Narayanan, Muralidhar Rangaswamy

Proceedings Volume 13048, 130480J (2024) https://doi.org/10.1117/12.3013555

KEYWORDS: Radar, Education and training, Deep learning, Data modeling, Sensors, Cognitive modeling, Velocity measurements, Systems modeling, Signal to noise ratio, Remote sensing

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Proceedings Article | 7 June 2024 Presentation + Paper

Combined Kalman and Kalman-Levy filter for maneuvering target tracking

V. Sreekantamurthy, Ram Narayanan, Anthony Martone

Proceedings Volume 13048, 130480I (2024) https://doi.org/10.1117/12.3013553

KEYWORDS: Signal filtering, Tunable filters, Electronic filtering, Detection and tracking algorithms, Covariance matrices, Process modeling, Motion models, Computation time, Switching, Covariance

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Proceedings Article | 7 June 2024 Presentation + Paper

Micro-Doppler radar characterization of vehicle vibrations

Benjamin Simone, Ram Narayanan, Daniel Watson, Karl Reichard, Kyle Gallagher

Proceedings Volume 13048, 130480R (2024) https://doi.org/10.1117/12.3013552

KEYWORDS: Vibration, Radar, Accelerometers, Doppler effect, Spectral density, Acoustics, Radar signal processing, Radar sensor technology, Automotive radar, Antennas

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Proceedings Article | 6 June 2024 Presentation + Paper

Demonstration of the frequency and correlation behavior of a forward scatter baseline crossing event

Justin K. Henry, Ram Narayanan

Proceedings Volume 13062, 130620B (2024) https://doi.org/10.1117/12.3013568

KEYWORDS: Radar, Doppler effect, Wavelets, Radar sensor technology, Time-frequency analysis, Antennas, Tunable filters, Global Positioning System, Amplitude modulation, Sensors

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Proceedings Article | 14 June 2023 Presentation + Paper

Sudoku sequences, Costas sequences, and random permutations in a multi-sub-FDA radar

Nicholas Munson, Ram Narayanan

Proceedings Volume 12535, 1253509 (2023) https://doi.org/10.1117/12.2663474

KEYWORDS: Radar, Phased arrays, Beam steering, Visualization, Windows, Receivers, Antennas, Tunable filters, Surveillance, Matrices

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Proceedings Article | 14 June 2023 Presentation + Paper

Statistical analysis of radar parameters from published research

Jackson Zaunegger, Paul Singerman, Ram Narayanan, Muralidhar Rangaswamy

Proceedings Volume 12535, 1253502 (2023) https://doi.org/10.1117/12.2663479

KEYWORDS: Radar, Antennas, Statistical analysis, Soil moisture, Ice, Ground penetrating radar, Remote sensing, Polarization, Repetition frequency, Earth sciences, Atmospheric sensing

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Proceedings Article | 14 June 2023 Presentation + Paper

A proposed concept for metacognitive configuration switching for tracking radar systems

Veena Sreekantamurthy, Tyler Ridder, Anthony Martone, Ram Narayanan

Proceedings Volume 12535, 1253503 (2023) https://doi.org/10.1117/12.2663376

KEYWORDS: Radar, Radar sensor technology, Target detection, Switching, Detection and tracking algorithms, Radar signal processing, Receivers, Transmitters, Antennas, Reflection

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Proceedings Article | 14 June 2023 Presentation + Paper

Multimodal feature assessment using multibranch 3D CNN to BI-LSTM for feature level multi-polarization SAR image data fusion and vehicle identification

Ferris Arnous, Ram Narayanan

Proceedings Volume 12535, 125350T (2023) https://doi.org/10.1117/12.2663374

KEYWORDS: Feature fusion, Image fusion, Synthetic aperture radar, Education and training, 3D image processing, Feature extraction, Convolution, Polarization, 3D image enhancement, Image sensors

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Proceedings Article | 14 June 2023 Presentation + Paper

Design and processing of a self-mixing passive forward scatter radar fence for space debris tracking

Justin K. Henry, Ram Narayanan, Puneet Singla

Proceedings Volume 12546, 125460D (2023) https://doi.org/10.1117/12.2663481

KEYWORDS: Doppler effect, Receivers, Radar, Transmitters, Tunable filters, Simulations, Signal detection, Global Positioning System, Design and modelling, Target detection

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Proceedings Article | 3 June 2022 Paper

Mie region radar cross-section of high-speed and rotational space debris

Justin K. Henry, Ram Narayanan, Puneet Singla, Erik Blasch

Proceedings Volume 12121, 121210B (2022) https://doi.org/10.1117/12.2622691

KEYWORDS: Radar, Scattering, Transmitters, Space operations, Satellites, Receivers, Mie scattering, Wave propagation, Systems modeling, Radio propagation

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Proceedings Article | 27 May 2022 Presentation + Paper

Design and experimentation of a dual-band, full-polarization, side-looking synthetic aperture radar using an RF system-on-a-chip

Colin Kelly, Kyle Gallagher, Khalid Salik, Traian Dogaru, Brian Phelan, Ram Narayanan, Kelly Sherbondy

Proceedings Volume 12108, 121080F (2022) https://doi.org/10.1117/12.2622404

KEYWORDS: Land mines, Target detection, Radar, Antennas, Metals, Synthetic aperture radar, System on a chip, Signal detection, Clocks, Transmitters

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Proceedings Article | 27 May 2022 Presentation + Paper

Mobile distributed mesh network optimization with a black box optimizer

Frederick Chache, Sean Maxon, Ram Narayanan, Ramesh Bharadwaj

Proceedings Volume 12108, 121080O (2022) https://doi.org/10.1117/12.2622391

KEYWORDS: Algorithm development, Sensors, Network architectures, Computer simulations, Transceivers, Machine learning, Internet, Statistical analysis, Smart sensors, Filtering (signal processing)

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Proceedings Article | 27 May 2022 Presentation + Paper

Domain fusion based feature extraction for SAR ATR

Terell Dale, Ngoc Tran, Ram Narayanan, Ramesh Bharadwaj

Proceedings Volume 12108, 121080N (2022) https://doi.org/10.1117/12.2622400

KEYWORDS: Synthetic aperture radar, Network architectures, Radar, Data acquisition, Target acquisition, Automatic target recognition, Target recognition, Image fusion, Image classification, Feature extraction

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Proceedings Article | 27 May 2022 Presentation + Paper

Analysis of antenna array patterns for multiple squad configurations

Mark Pawelski, Ram Narayanan, Sastry Kompella

Proceedings Volume 12108, 121080J (2022) https://doi.org/10.1117/12.2622403

KEYWORDS: Antennas, Radar, Analytical research, Transmitters, Target detection, Receivers, Mathematical modeling

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Proceedings Article | 27 May 2022 Presentation + Paper

Radar technical language modeling with named entity recognition and text classification

Jackson Zaunegger, Paul Singerman, Ram Narayanan, Sean O’Rourke, Muralidhar Rangaswamy

Proceedings Volume 12108, 121080C (2022) https://doi.org/10.1117/12.2622410

KEYWORDS: Data modeling, Radar, Performance modeling, Computer programming, Cognitive modeling, Neural networks, Binary data, Target detection

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Proceedings Article | 27 May 2022 Presentation + Paper

Fusing SAR and EO imagery using CNN RGB-input channels, feature level, and decision level fusion

Noah Wood, Benjamin Lewis, Ram Narayanan

Proceedings Volume 12108, 121080G (2022) https://doi.org/10.1117/12.2622409

KEYWORDS: Synthetic aperture radar, Data fusion, Image fusion, RGB color model, Sensors, Neural networks, Electro optical modeling, Image processing, Image resolution, Electro optics

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Proceedings Article | 27 May 2022 Presentation + Paper

Experimental analysis of micro-Doppler characteristics of drones and birds for classification purposes

Bryan Tsang, Ram Narayanan, Ramesh Bharadwaj

Proceedings Volume 12108, 121080K (2022) https://doi.org/10.1117/12.2622408

KEYWORDS: Radar, Doppler effect, Unmanned aerial vehicles, Signal processing, Continuous wave operation, Target detection, Antennas, Image classification

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Proceedings Article | 27 May 2022 Presentation + Paper

Generation and estimation of randomly maneuvering target trajectories towards metacognitive tracking radar applications

Veena Sreekantamurthy, Jordan DeVault, Anthony Martone, Benjamin Kirk, Ram Narayanan

Proceedings Volume 12108, 121080Q (2022) https://doi.org/10.1117/12.2622407

KEYWORDS: Radar, Motion models, Detection and tracking algorithms, Error analysis, Motion estimation, Target detection, Filtering (signal processing), Algorithm development

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Proceedings Article | 27 May 2022 Presentation + Paper

Radar applications of orthogonal Sudoku arrays and Costas cubes

Nicholas Munson, Travis Bufler, Ram Narayanan

Proceedings Volume 12108, 121080P (2022) https://doi.org/10.1117/12.2622406

KEYWORDS: Radar, Antennas, Matrices, Tolerancing, Doppler effect, Visualization, Image information entropy, Solids, Medicine, Mathematical modeling

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SPIE Journal Paper | 24 January 2022

Application of multidomain sensor image fusion and training data augmentation for enhanced CNN image classification

Ferris Arnous, Ram M. Narayanan, Bingcheng Li

JEI, Vol. 31, Issue 01, 013014, (January 2022) https://doi.org/10.1117/12.10.1117/1.JEI.31.1.013014

KEYWORDS: Image fusion, Image sensors, Sensors, Image classification, Data fusion, Image enhancement, Signal to noise ratio, Lithium, Image processing, Synthetic aperture radar

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Proceedings Article | 12 April 2021 Presentation + Paper

Symbolic dynamics for radar target maneuver detection

Paul Singerman, Sean O'Rourke, Ram Narayanan, Muralidhar Rangaswamy

Proceedings Volume 11742, 1174207 (2021) https://doi.org/10.1117/12.2588309

KEYWORDS: Target detection, Radar, Motion estimation

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Proceedings Article | 12 April 2021 Presentation + Paper

Analysis of machine learning methods for clutter classification

Richard Washington, Dmitriy Garmatyuk, Saba Mudaliar, Ram Narayanan

Proceedings Volume 11742, 1174213 (2021) https://doi.org/10.1117/12.2588310

KEYWORDS: Signal processing, Radar, Data communications, Statistical modeling, Signal generators, Performance modeling, Machine learning, Interference (communication), Computer programming

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Proceedings Article | 12 April 2021 Presentation + Paper

Analysis of planar arrays using Sudoku puzzles for multiple beamforming

Rishita Chandra, Travis Bufler, Ram Narayanan

Proceedings Volume 11742, 117420N (2021) https://doi.org/10.1117/12.2588314

KEYWORDS: Phased arrays, Beam steering, Radar, Antennas, Telecommunications, Target detection, MATLAB, Beam analyzers

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Proceedings Article | 12 April 2021 Presentation + Paper

Ambiguity and Doppler tolerance analyses of frequency-stepped, Sudoku-variant waveforms

Travis Bufler, Bill Correll, Ram Narayanan

Proceedings Volume 11742, 117420M (2021) https://doi.org/10.1117/12.2586679

KEYWORDS: Tolerancing, Doppler effect, Statistical analysis

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Proceedings Article | 12 April 2021 Presentation + Paper

Application of multidomain data fusion, machine learning and feature learning paradigms towards enhanced image-based SAR class vehicle recognition

Ferris Arnous, Ram Narayanan, Bing Li

Proceedings Volume 11742, 1174209 (2021) https://doi.org/10.1117/12.2588307

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Proceedings Article | 12 April 2021 Presentation + Paper

Tripartite correlation performance for use in quantum radar systems

Rory Bowell, Matthew Brandsema, Ram Narayanan, Stephen Howell, Jonathan Dilger

Proceedings Volume 11742, 117420I (2021) https://doi.org/10.1117/12.2588308

KEYWORDS: Radar, Signal to noise ratio, Particles

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Proceedings Article | 12 April 2021 Presentation + Paper

Sudoku based phase-coded radar waveforms

Nicholas Munson, Travis Bufler, Ram Narayanan

Proceedings Volume 11742, 117420L (2021) https://doi.org/10.1117/12.2588316

KEYWORDS: Radar, Logic, Image information entropy

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Proceedings Article | 12 April 2021 Presentation + Paper

Distributed network communication using B.A.T.M.A.N. algorithm over LoRa

Frederick Chache, Sean Maxon, Ram Narayanan, Ramesh Bharadwaj

Proceedings Volume 11742, 117420C (2021) https://doi.org/10.1117/12.2588317

KEYWORDS: Sensors, Detection and tracking algorithms, Internet, Data communications, Sensor fusion, Quality systems, Object recognition, Global Positioning System, Environmental sensing, Clouds

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Proceedings Article | 4 May 2020 Paper

Wavefront curvature correction for radar imaging in a degraded visual environment

Colin Kelly, Traian Dogaru, Brian Phelan, Kelly Sherbondy, Ram Narayanan

Proceedings Volume 11408, 114080U (2020) https://doi.org/10.1117/12.2560300

KEYWORDS: Radar, Wavefronts, Driver's vision enhancers, 3D image processing, Visualization, Fourier transforms, Synthetic aperture radar, Antennas, Imaging systems, Reflectivity

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Proceedings Article | 23 April 2020 Presentation + Paper

Moving target detection using bistatic radar

Clark Handel, Ram Narayanan

Proceedings Volume 11408, 114080L (2020) https://doi.org/10.1117/12.2560370

KEYWORDS: Radar, Target detection, Scattering, Receivers, Doppler effect, Fiber optic illuminators, Signal processing, Digital signal processing, Laser scattering, Orthogonal frequency division multiplexing

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Proceedings Article | 23 April 2020 Presentation + Paper

SAR imaging of moving targets based on fusion of range-Doppler and probabilistic multi-hypothesis tracking algorithms

Abdullah Taher, Ram Narayanan

Proceedings Volume 11408, 114080V (2020) https://doi.org/10.1117/12.2560306

KEYWORDS: Synthetic aperture radar, Detection and tracking algorithms, Expectation maximization algorithms, Image processing, Target designation, Motion estimation, Doppler effect, Radar, Target detection, Antennas

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Proceedings Article | 23 April 2020 Presentation + Paper

Exploring transmit null forming in open-loop coherent distributed arrays

Michael Lipski, Sastry Kompella, Ram Narayanan

Proceedings Volume 11408, 114080X (2020) https://doi.org/10.1117/12.2560302

KEYWORDS: Receivers, Error analysis, Signal attenuation, Nulling interferometry, Antennas, Phased arrays, Network architectures, Stochastic processes, Sensor networks, Optimization (mathematics)

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Proceedings Article | 23 April 2020 Presentation + Paper

Artificial intelligence implementation for multi-domain sensor suite optimization

Ferris Arnous, Ram Narayanan, Bing Li

Proceedings Volume 11408, 1140818 (2020) https://doi.org/10.1117/12.2567139

KEYWORDS: Sensors, Machine learning, Algorithm development, Data modeling, Detection and tracking algorithms, Sensor performance, Data fusion, Evolutionary algorithms, Performance modeling, Synthetic aperture radar

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Proceedings Article | 23 April 2020 Presentation + Paper

Remote sensing performance enhancement due to quantum + classical cooperative sensor

Bilal Ahmed, Matthew Brandsema, Rory Bowell, Ram Narayanan, Stephen Howell, Jonathan Dilger

Proceedings Volume 11408, 114080R (2020) https://doi.org/10.1117/12.2562739

KEYWORDS: Sensors, Signal to noise ratio, Composites, Photons, Computer simulations, Optical correlators, Remote sensing, Signal detection, Beam splitters, Interference (communication)

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Proceedings Article | 23 April 2020 Presentation + Paper

Electric field correlations in quantum radar and the quantum advantage

Rory Bowell, Matthew Brandsema, Bilal Ahmed, Ram Narayanan, Stephen Howell, Jonathan Dilger

Proceedings Volume 11408, 114080S (2020) https://doi.org/10.1117/12.2562749

KEYWORDS: Radar, Beam splitters, Single photon, Remote sensing, Signal to noise ratio, Photon counting, Analog electronics, Interference (communication), Matrices, Applied research

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Proceedings Article | 23 April 2020 Presentation + Paper

Operational reliability of a moving target indication (MTI) radar

Tyler Ridder, Ram Narayanan

Proceedings Volume 11408, 114080Z (2020) https://doi.org/10.1117/12.2560305

KEYWORDS: Radar, Reliability, Target detection, Signal processing, Monte Carlo methods, Doppler effect, Radar signal processing, Signal detection, Electronic filtering, Filtering (signal processing)

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Proceedings Article | 23 April 2020 Presentation + Paper

Wireless underwater-to-air communications via water surface modulation and radar detection

Moniara Romero, Ram Narayanan, Erik Lenzing, Daniel Brown, Kristoffer Greenert

Proceedings Volume 11408, 114080C (2020) https://doi.org/10.1117/12.2557815

KEYWORDS: Radar, Antennas, Acoustics, Modulation, Wireless communications, Projection systems, Sensors, Doppler effect, Demodulation, Linear filtering

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Proceedings Article | 23 April 2020 Presentation + Paper

Real-time emulation of LTE emissions for testing spectrum sharing systems

Jordan DeVault, Jacob Kovarskiy, Benjamin Kirk, Anthony Martone, Kelly Sherbondy, Ram Narayanan

Proceedings Volume 11408, 1140803 (2020) https://doi.org/10.1117/12.2559123

KEYWORDS: Electromagnetic coupling, Radar, Telecommunications, Orthogonal frequency division multiplexing, Statistical analysis, RF communications, Environmental sensing, MATLAB, Analytical research, Transceivers

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Proceedings Article | 23 April 2020 Presentation + Paper

Correlation properties of single photon binary waveforms used in quantum radar/lidar

Matthew Brandsema, Ram Narayanan, Marco Lanzagorta

Proceedings Volume 11408, 114080Q (2020) https://doi.org/10.1117/12.2560184

KEYWORDS: Single photon, Binary data, Signal to noise ratio, Modulation, Sensors, Radar, Computer simulations, Signal detection, Monte Carlo methods, Entangled states

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Proceedings Article | 23 April 2020 Presentation + Paper

Transmission scheduling in spatio-temporal process monitoring based wireless sensor networks

Caden Pici, Sastry Kompella, Ram Narayanan

Proceedings Volume 11408, 1140805 (2020) https://doi.org/10.1117/12.2560303

KEYWORDS: Sensor networks, Sensors, Electronic filtering, Mathematical modeling, Systems modeling, Data modeling, Correlation function, Dynamical systems, Analytical research

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Proceedings Article | 13 May 2019 Paper

Additive manufacturing for microwave and millimeter-wave antennas: a summary of current technology and experimentation

Andrew O'Neill, Joshua Davidson, Timothy Kane, Ram Narayanan

Proceedings Volume 10980, 109800Y (2019) https://doi.org/10.1117/12.2519549

KEYWORDS: Antennas, Printing, Additive manufacturing, Waveguides, Dielectrics, 3D printing, Electromagnetism, Surface roughness, Fused deposition modeling, Manufacturing

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Proceedings Article | 13 May 2019 Paper

Surface methodology for 3D printed multispectral systems

Joshua Davidson, Andrew O'Neill, Timothy Kane, Ram Narayanan

Proceedings Volume 10980, 1098013 (2019) https://doi.org/10.1117/12.2519548

KEYWORDS: Infrared imaging, Ultraviolet radiation, Electroplating, Additive manufacturing, Imaging systems, Signal attenuation, Thermography, Optics manufacturing, Visible radiation, Long wavelength infrared

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