no code implementations • 4 Jul 2023 • Xiangyu Gao, Sumit Roy, Lyutianyang Zhang
Our proposed algorithm follows a three-step approach: a) preprocessing of back-scattered received radar signal for 4-dimensional (4D) point clouds generation, b) 3-dimensional (3D) radar ego-motion estimation, and c) notch filter-based background removal in the azimuth-elevation-Doppler domain.
no code implementations • 6 Apr 2023 • Sian Jin, Pu Perry Wang, Petros Boufounos, Philip V. Orlik, Ryuhei Takahashi, Sumit Roy
We also derive analytical closed-form expressions for probabilities of detection and false alarm.
no code implementations • 22 Jun 2022 • Lyutianyang Zhang, Hao Yin, Sumit Roy, Liu Cao
Meanwhile, a deep reinforcement learning channel access (DLCA) protocol is developed to replace the binary exponential backoff mechanism in DCF to enhance the network throughput by enabling the coordination of APs.
no code implementations • 22 May 2022 • Liu Cao, Lyutianyang Zhang, Sian Jin, Sumit Roy
As most existing work investigate the PHY layer abstraction under an assumption of perfect channel estimation, it may become unreliable if there exists channel estimation error in a real communication system.
no code implementations • 31 Oct 2021 • Xiangyu Gao, Hui Liu, Sumit Roy, Guanbin Xing, Ali Alansari, Youchen Luo
Detecting harmful carried objects plays a key role in intelligent surveillance systems and has widespread applications, for example, in airport security.
no code implementations • 4 Apr 2021 • Xiangyu Gao, Sumit Roy, Guanbin Xing, Sian Jin
Millimeter-wave (mmWave) radars are being increasingly integrated in commercial vehicles to support new Adaptive Driver Assisted Systems (ADAS) features that require accurate location and Doppler velocity estimates of objects, independent of environmental conditions.
no code implementations • 22 Jan 2021 • Xiangyu Gao, Sumit Roy, Guanbin Xing
Millimeter-wave radars are being increasingly integrated into commercial vehicles to support advanced driver-assistance system features.
3 code implementations • 13 Nov 2020 • Xiangyu Gao, Guanbin Xing, Sumit Roy, Hui Liu
Millimeter-wave radars are being increasingly integrated into commercial vehicles to support new advanced driver-assistance systems by enabling robust and high-performance object detection, localization, as well as recognition - a key component of new environmental perception.
1 code implementation • 29 Dec 2019 • Xiangyu Gao, Guanbin Xing, Sumit Roy, Hui Liu
Millimeter-wave (mmW) radars are being increasingly integrated in commercial vehicles to support new Adaptive Driver Assisted Systems (ADAS) for its ability to provide high accuracy location, velocity, and angle estimates of objects, largely independent of environmental conditions.
2 code implementations • 3 Jun 2019 • Michael J. Wilensky, Miguel F. Morales, Bryna J. Hazelton, Nichole Barry, Ruby Byrne, Sumit Roy
We introduce a new pipeline for analyzing and mitigating radio frequency interference (RFI), which we call Sky-Subtracted Incoherent Noise Spectra (SSINS).
Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics
no code implementations • 16 Jun 2018 • Sauradip Nag, Pallab Kumar Ganguly, Sumit Roy, Sourab Jha, Krishna Bose, Abhishek Jha, Kousik Dasgupta
Regional language extraction from a natural scene image is always a challenging proposition due to its dependence on the text information extracted from Image.