Research

RIS circuit design

Advised by: Dr. Dola Saha and Dr. Aveek Dutta 2023 – present

• Propose 3D RFI cancellation system by control the phase and amplitude to cancel incident RFI on telescope

• Provide blueprints and circuit analysis for RIS array prototyping across multiple DoAs

Multistage 2D DoA Estimation in Low SNR

Advised by: Dr. Dola Saha and Dr. Aveek Dutta 2022 – present

• Propose a three stage algorithm that methodically exploits digital beamforming, creates virtual subarrays, inspects multiple options and introduces clustering to estimate the DoA in low SNRs

RFI cancellation using RIS

Advised by: Dr. Dola Saha and Dr. Aveek Dutta 2022 – present

• Estimate incident RFI of the telescope and configure Reconfigurable Intelligent Surface(number, spacing, etc.)

• Find the solution of amplitude and phase of each element of RIS to reflect incident RFI of RIS in order to cancel RFI in the telescope

Key generation

Advised by: Dr. Dola Saha 2022 – 2023

• Propose a Key Generation model using neural networks from wireless Channels

• Extract the implicit features of channel in a compressed form to derive keys with high KGR and low KDR

Wireless steganography

Advised by: Dr. Dola Saha 2021 – 2023

• Design a complex-valued neural network to hide the transmission of secret signals

• This method has nothing to do with any properties of the covert signal (such as waveform or modulation order)

• Use complex-valued neural networks, which is more powerful and has a faster learning speed than real-valued neural network

• Transmit signals over the air and apply the transfer learning method to retrain the model again to further optimize the system and get a lower bit error rate

Teaching human motion

Advised by: Dr. Weifu Wang 2019 – 2020

• Offer a systematic exploration of how to decompose complicated physical motions to make motion more

• Interpretable and easier to learn for humans

• Build a teaching environment in a virtual environment (VR + unity)

• Use real robot teaching frontend to demonstrate motion clips(sign language, breaststroke, butterfly, etc)