4-D Gesture Sensing Using Reconfigurable Virtual Array Based on a 60-GHz FMCW MIMO Radar Sensor

Li, Yuchen; Gu, Changzhan; Mao, Junfa

doi:10.1109/tmtt.2022.3174075

Cited by 27 publications

(5 citation statements)

References 28 publications

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“…For example, C. Li's group continued to develop frequency modulated continuous wave (FMCW) radars for indoor positioning, passive biomedical radar sensing, and activity classification such as potential active shooter detection and inattentive driver behavior classification [206], [207], [208], [209]. C. Gu's team focused on touchless human-computer interaction [210] in the Google Soli project, which aimed to develop new human interaction with computers by leveraging accurate sensing and perception of gestures with microwave radar technologies. One application was the first smartphone with a microwave radar inside [211].…”

Section: ) Research By Mtt-28 Membersmentioning

confidence: 99%

Applications of Microwaves in Medicine

Chiao

Lin

et al. 2023

IEEE J. Microw.

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Advances and updates in medical applications utilizing microwave techniques and technologies are reviewed in this paper. The article aims to provide an overview of enablers for microwave medical applications and their recent progress. The emphasis focuses on the applications of microwaves, in the following order, for 1) signal and data communication for implants and wearables through the human body, 2) electromagnetic energy transfer through tissues, 3) noninvasive, remote or in situ physical and biochemical sensing, and 4) therapeutic purposes by changing tissue properties with controlled thermal effects. For signal and data communication and wireless power transfer, implant and wearable applications are discussed in the categories of pacemakers, endoscopic capsules, brain interfaces, intraocular, cardiac and intracranial pressure sensors, neurostimulators, endoluminal implants, artificial retina, smart lenses, and cochlear implants. For noninvasive sensing, remote vital sign radar, biological cell probing, magnetic resonance and microwave imaging, biochemical, blood glucose, hydration and biomarker sensing applications are introduced. For therapeutic uses, the developments of microwave ablation, balloon angioplasty, and hyperthermia applications are reviewed. The scopes of this article mainly concentrate on the research and development efforts in the past 20 years. Recent review articles on specific topics are cited with accomplishment highlights and trends deliberated. At the end of this article, a brief history of the IEEE Microwave Theory and Techniques Society (MTT-S) Biological Effects and Medical Applications committee and the contributions by its members to the promotion and advancement of microwave technologies in medical fields are chronicled.

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Section: ) Research By Mtt-28 Membersmentioning

confidence: 99%

Applications of Microwaves in Medicine

Chiao

Lin

et al. 2023

IEEE J. Microw.

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“…For instance, wireless backhaul applications utilize the mmWave spectrum for communications. Similarly, 60 GHz bands have already been used for gesture recognition [ 33 , 34 ]. The 60 GHz bands already have communication front-ends with BF capabilities [ 15 ].…”

Section: Circuit Level Perspectives Of Jcrs Rf Hardwarementioning

confidence: 99%

Joint Communication and Radar Sensing: RF Hardware Opportunities and Challenges—A Circuits and Systems Perspective

Sen,

Harutyunyan,

Umar

et al. 2023

Sensors

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This paper focuses on the topic of joint communication and radar sensing (JCRS) and its applications in the scope of upcoming sixth-generation (6G) technology. While the fifth-generation applications have reached the consumer market in the last few years, JCRS has been identified as one of the key technologies for next generation networks. The role of JCRS will vary, ranging from tasks such as radar coordination, context awareness for communication, enhanced security, increased availability, and improving the resilience and trustworthiness of future networks. In this work, the niche of JCRS technology in the future 6G ecosystem, as well as several potential applications, are discussed with a focus on RF hardware. The use of centimeter (cmWave) and millimeter (mmWave) frequency spectrums in the context of JCRS system implementation have been further elaborated. After presenting the near-term application scenarios, the circuit implementation perspectives are investigated in terms of radio frequency (RF) front-end architectures, antenna implementation, and phased arrays. Different communication and radar antenna options are compared, and the best candidates are identified. The packaging options are also presented. From circuit and system perspectives, link budget and self-interference cancellation (SIC) are highlighted. Furthermore, future directions including the next steps on the path to enabling JCRS technology are presented throughout this article. Prior works focused more on physical layers and network capabilities of JCRS systems, with less focus on hardware possibilities; to fill this gap, this article aims to contribute to this exciting research topic with a holistic review of RF hardware, highlighting the diversity of applications and the available technologies to tackle the near- and long-term needs of consumer applications.

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“…As an alternative sensing-based gesture recognition solution, mmWave radar-based systems [23][24][25][26] have recently received significant attention due to the recent advances in mmWave radar chip manufacturing [27] and the continuing reduction in the cost and physical size of hardware [28]. Unlike WiFi-based solutions, mmWave radar-based solutions do not need to stick to the CSI measurement intervals specified by WiFi standard [22], hence allowing for more flexible measurements for hand gesture recognition.…”

Section: Introductionmentioning

confidence: 99%

A Low-Complexity Hand Gesture Recognition Framework via Dual mmWave FMCW Radar System

Mao,

Zhao,

Liu

et al. 2023

Sensors

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In this paper, we propose a novel low-complexity hand gesture recognition framework via a multiple Frequency Modulation Continuous Wave (FMCW) radar-based sensing system. In this considered system, two radars are deployed distributively to acquire motion vectors from different observation perspectives. We first independently extract reflection points of the interested target from different radars by applying the proposed neighboring reflection points detection method after processing the traditional 2-dimensional Fast Fourier Transform (2D-FFT). The obtained sufficient corresponding information of detected reflection points, e.g., distances, velocities, and angle information, can be exploited to synthesize motion velocity vectors to achieve a high signal-to-noise ratio (SNR) performance, which does not require knowledge of the relative position of the two radars. Furthermore, we utilize a long short-term memory (LSTM) network as well as the synthesized motion velocity vectors to classify different gestures, which can achieve a significantly high accuracy of gesture recognition with a 1600-sample data set, e.g., 98.0%. The experimental results also illustrate the robustness of the proposed gesture recognition systems, e.g., changing the environment background and adding new gesture performers.

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4-D Gesture Sensing Using Reconfigurable Virtual Array Based on a 60-GHz FMCW MIMO Radar Sensor

Cited by 27 publications

References 28 publications

Applications of Microwaves in Medicine

Applications of Microwaves in Medicine

Joint Communication and Radar Sensing: RF Hardware Opportunities and Challenges—A Circuits and Systems Perspective

A Low-Complexity Hand Gesture Recognition Framework via Dual mmWave FMCW Radar System

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