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The fine timing measurement (FTM) protocol is designed to determine precise ranging between Wi-Fi devices using round-trip time (RTT) measurements. However, the multipath propagation of radio waves generates inaccurate timing information,…

Networking and Internet Architecture · Computer Science 2021-12-30 Jeongsik Choi

Next-generation intelligent transportation systems require both sensing and communication between road users. However, deploying separate radars and communication devices involves the allocation of individual frequency bands and hardware…

Signal Processing · Electrical Eng. & Systems 2026-02-11 Akanksha Sneh , Aakanksha Tewari , Shobha Sundar Ram , Sumit J Darak

Frequency-modulated continuous-wave (FMCW) radar plays a pivotal role in the field of remote sensing. The increasing degree of FMCW radar deployment has increased the mutual interference, which weakens the detection capabilities of radars…

Signal Processing · Electrical Eng. & Systems 2024-07-18 Ziang Zhang , Guangzhi Chen , Youlong Weng , Shunchuan Yang , Zhiyu Jia , Jingxuan Chen

Advancing towards high automation and autonomous operations is crucial for the future of inland waterway transport (IWT) systems. These systems necessitate robust and precise onboard sensory technologies that can perceive the environment…

Signal Processing · Electrical Eng. & Systems 2024-11-26 R. Herrmann , S. Bose , I. Filip , D. Medina , R. Ziebold , S. Gehrig , T. Lenhard , M. Gardill

We consider a joint radar estimation and communication system using orthogonal time frequency space (OTFS) modulation. The scenario is motivated by vehicular applications where a vehicle equipped with a mono-static radar wishes to…

Information Theory · Computer Science 2019-10-07 Lorenzo Gaudio , Mari Kobayashi , Giuseppe Caire , Giulio Colavolpe

Direction of arrival (DOA) estimation is a fundamental problem in array signal processing with applications spanning radar, sonar, wireless communications, and acoustic signal processing. This tutorial survey provides a comprehensive…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Amgad A. Salama

This paper presents a performance comparison of various MIMO radar multiplexing approaches where the increasing number of transmitters adversely affects the dynamic range of the resultant MIMO system. The investigated multiplexing…

Signal Processing · Electrical Eng. & Systems 2024-08-27 Aitor Correas-Serrano , Nikita Petrov , Maria Gonzalez-Huici , Alexander Yarovoy

Commercial automotive radars used today are based on frequency modulated continuous wave signals due to the simple and robust detection method and good accuracy. However, the increase in both the number of radars deployed per vehicle and…

Signal Processing · Electrical Eng. & Systems 2019-10-11 Canan Aydogdu , Nil Garcia , Lars Hammarstrand , Henk Wymeersch

This paper introduces a lightweight gesture recognition system based on 60 GHz frequency modulated continuous wave (FMCW) radar. We show that gestures can be characterized efficiently by a set of five features, and propose a slim radar…

Machine Learning · Computer Science 2024-02-29 Maximilian Strobel , Stephan Schoenfeldt , Jonas Daugalas

Direction-of-arrival (DOA) estimation refers to the process of retrieving the direction information of several electromagnetic waves/sources from the outputs of a number of receiving antennas that form a sensor array. DOA estimation is a…

Information Theory · Computer Science 2017-01-10 Zai Yang , Jian Li , Petre Stoica , Lihua Xie

In FMCW automotive radar applications, it is often a challenge to design a chirp sequence that satisfies the requirements set by practical driving scenarios and simultaneously enables high range resolution, large maximum range, and…

Signal Processing · Electrical Eng. & Systems 2023-12-06 Tarik Kazaz , Karan Jayachandra , Arie Koppellar , Yiting Lu

Modern vehicles increasingly rely on advanced driver-assistance systems (ADAS), with radars playing a key role due to their cost-effectiveness and reliable performance. However, the growing number of radars operating in the same spectrum…

Networking and Internet Architecture · Computer Science 2026-03-06 Alessandro Bazzi , Francesco Miccoli , Fabrizio Cuccoli , Luca Facheris , Vincent Martinez

In the continuous-wave Detection and Ranging technology, simultaneous and accurate range and velocity measurements of an unknown target are typically achieved using a frequency-modulated continuous wave (FMCW) with a heterodyne receiver.…

This work presents the use of frequency modulated continuous wave (FMCW) radar technology combined with a machine learning model to differentiate between normal and abnormal breath rates. The proposed system non-contactly collects data…

Machine Learning · Computer Science 2024-07-19 Mohammad Wassaf Ali , Ayushi Gupta , Mujeev Khan , Mohd Wajid

Recently, as the drones have become smaller and smarter, they are emerging as new threats to the military and the public. To prevent the threats, the development of the radar to detect the small drones is needed. The frequency modulated…

Signal Processing · Electrical Eng. & Systems 2024-10-30 Junhyeong Park , Seungwoon Park , Do-Hoon Kim , Seong-Ook Park

This paper presents a general technique for the joint Direction-of-Arrival (DoA) and Time-of-Arrival (ToA) estimation in multipath environments. The proposed ultra-wideband technique is based on phase-mode expansions and the use of nearly…

Signal Processing · Electrical Eng. & Systems 2023-04-28 Alejandro Ramírez-Arroyo , Antonio Alex-Amor , Pablo Padilla , Juan F. Valenzuela-Valdés

Millimeter-wave radar systems are one of the core components of the safety-critical Advanced Driver Assistant System (ADAS) of a modern vehicle. Due to their ability to operate efficiently despite bad weather conditions and poor visibility,…

Cryptography and Security · Computer Science 2022-05-16 Mihai Ordean , Flavio D. Garcia

We consider a joint radar estimation and communication system using orthogonal frequency division multiplexing (OFDM) and orthogonal time frequency space (OTFS) modulations. The scenario is motivated by vehicular applications where a…

Information Theory · Computer Science 2019-02-07 Lorenzo Gaudio , Mari Kobayashi , Björn Bissinger , Giuseppe Caire

In this paper, constant false alarm rate (CFAR) detector-based approaches are proposed for interference mitigation of Frequency modulated continuous wave (FMCW) radars. The proposed methods exploit the fact that after dechirping and…

Signal Processing · Electrical Eng. & Systems 2021-01-06 Jianping Wang

Non-contact vital sign detection is a required application nowadays in many fields as patient monitoring and static human detection. Within the last decade, radar has been introduced as a smart and convenient sensor for non-contact…

Signal Processing · Electrical Eng. & Systems 2017-11-28 Sherif Abdulatif , Fady Aziz , Pelin Altiner , Bernhard Kleiner , Urs Schneider