Pub Date : 2013-12-01DOI: 10.1109/IMWS-BIO.2013.6756235
J. Gil, Ji-Hoon Kim, Chun-Suk Kim, Chulhyun Park, Jungsu Park, Hyejin Park, Hyeji Lee, Sung-Jae Lee, Young-Ho Jang, M. Koo, Y. W. Kwon, I. Song
The ZigBee technology based on IEEE 802.15.4 is widespread use of biomedical applications providing wireless networks. A fully integrated low-power 2.4GHz ZigBee transceiver implemented in CMOS technology is demonstrated. It has RF and analog front-ends, a frequency synthesizer, and digital modulator and demodulator compliant to IEEE 802.15.4. The direct-modulation using fractional-N synthesizer is adopted as transmitter architecture. The transmitter provides high output power of +9dBm and excellent EVM of 5.1%. The direct conversion architecture uses in receiver. Receiver sensitivity is -97dBm. Current consumption for continuous TX transmission at +9dBm output power is 28.2mA and for continuous RX reception is 16mA. Excellence coexistence performance is presented by studying WLAN interferer rejection.
{"title":"A fully-integrated low-power high-coexistence 2.4-GHz ZigBee transceiver for biomedicai applications","authors":"J. Gil, Ji-Hoon Kim, Chun-Suk Kim, Chulhyun Park, Jungsu Park, Hyejin Park, Hyeji Lee, Sung-Jae Lee, Young-Ho Jang, M. Koo, Y. W. Kwon, I. Song","doi":"10.1109/IMWS-BIO.2013.6756235","DOIUrl":"https://doi.org/10.1109/IMWS-BIO.2013.6756235","url":null,"abstract":"The ZigBee technology based on IEEE 802.15.4 is widespread use of biomedical applications providing wireless networks. A fully integrated low-power 2.4GHz ZigBee transceiver implemented in CMOS technology is demonstrated. It has RF and analog front-ends, a frequency synthesizer, and digital modulator and demodulator compliant to IEEE 802.15.4. The direct-modulation using fractional-N synthesizer is adopted as transmitter architecture. The transmitter provides high output power of +9dBm and excellent EVM of 5.1%. The direct conversion architecture uses in receiver. Receiver sensitivity is -97dBm. Current consumption for continuous TX transmission at +9dBm output power is 28.2mA and for continuous RX reception is 16mA. Excellence coexistence performance is presented by studying WLAN interferer rejection.","PeriodicalId":6321,"journal":{"name":"2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80963734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/IMWS-BIO.2013.6756209
K. Y. Yazdandoost, R. Miura
In any wireless communications, antennas and propagation are key concerns. Their importance becomes more significant for in/on-body wireless applications. Body Area Network (BAN) links lead to propagation problems considerably different from free space wireless communications due to presents of body tissues, body movements, and enormous figure of body poses. Therefore, to ensure the efficient performance of body area wireless communication the electromagnetic wave propagation need to be characterized and modeled for reliable communication system with respect to environment, antenna, body postures, and body movements. This paper discusses on polarization mismatch due to body movements between on-body transmitting antenna and off-body receiving antenna.
{"title":"Antenna polarization mismatch in BAN communications","authors":"K. Y. Yazdandoost, R. Miura","doi":"10.1109/IMWS-BIO.2013.6756209","DOIUrl":"https://doi.org/10.1109/IMWS-BIO.2013.6756209","url":null,"abstract":"In any wireless communications, antennas and propagation are key concerns. Their importance becomes more significant for in/on-body wireless applications. Body Area Network (BAN) links lead to propagation problems considerably different from free space wireless communications due to presents of body tissues, body movements, and enormous figure of body poses. Therefore, to ensure the efficient performance of body area wireless communication the electromagnetic wave propagation need to be characterized and modeled for reliable communication system with respect to environment, antenna, body postures, and body movements. This paper discusses on polarization mismatch due to body movements between on-body transmitting antenna and off-body receiving antenna.","PeriodicalId":6321,"journal":{"name":"2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82546961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/IMWS-BIO.2013.6756226
T. B. Lim, Ngai Meng. Lee, B. Poh
RF energy harvesting holds a promising future for generating a small amount of energy to potentially power on a low power device such as wireless sensor network especially in an urban country like Singapore. Due to path loss and restriction on permissible transmission power; the RF power available to the input of the RF energy harvesting system is relative low. In this work, we present a study of ambient RF energy harvesting. We also explore to determine whether another emerging technology wireless power transfer can be integrated with RF energy harvesting. A measurement of the ambient RF power density on GSM 900 and GSM 1800 bands in Nanyang Polytechnic of Singapore is presented. From our conclusion, the harvested energy is not able to directly power the wireless sensor network; however the harvested energy can be stored in a super-capacitor and over some time it can be used to power on the wireless sensor network. So, is RF energy harvesting ever going to become a practical reality? The answer is a cautious yes.
{"title":"Feasibility study on ambient RF energy harvesting for wireless sensor network","authors":"T. B. Lim, Ngai Meng. Lee, B. Poh","doi":"10.1109/IMWS-BIO.2013.6756226","DOIUrl":"https://doi.org/10.1109/IMWS-BIO.2013.6756226","url":null,"abstract":"RF energy harvesting holds a promising future for generating a small amount of energy to potentially power on a low power device such as wireless sensor network especially in an urban country like Singapore. Due to path loss and restriction on permissible transmission power; the RF power available to the input of the RF energy harvesting system is relative low. In this work, we present a study of ambient RF energy harvesting. We also explore to determine whether another emerging technology wireless power transfer can be integrated with RF energy harvesting. A measurement of the ambient RF power density on GSM 900 and GSM 1800 bands in Nanyang Polytechnic of Singapore is presented. From our conclusion, the harvested energy is not able to directly power the wireless sensor network; however the harvested energy can be stored in a super-capacitor and over some time it can be used to power on the wireless sensor network. So, is RF energy harvesting ever going to become a practical reality? The answer is a cautious yes.","PeriodicalId":6321,"journal":{"name":"2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79657403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/IMWS-BIO.2013.6756164
Shuo Liu, Shishan Qi, Wen Wu, D. Fang
A dual-band dual-polarized patch antenna is proposed for WiMax and WLAN systems. Impedance bandwidths of 7.5% and 9.6% can be achieved at 3.6 GHz and 5.2 GHz, respectively. The asymmetrical U-slot has been used to generate the orthogonal modes for circular polarization at 3.6 GHz with a 3dB axial ratio bandwidth of 0.7%, and the linear polarization is obtained by cutting a symmetrical U-slot on the patch. Higher gains at both CP and LP bands are obtained simultaneously. The peak gains in lower and higher bands are 8.5 dBic and 8.6 dBi, respectively. The simulated results of the antenna have been presented and discussed.
{"title":"Single-fed dual-band dual-polarized U-slot patch antenna","authors":"Shuo Liu, Shishan Qi, Wen Wu, D. Fang","doi":"10.1109/IMWS-BIO.2013.6756164","DOIUrl":"https://doi.org/10.1109/IMWS-BIO.2013.6756164","url":null,"abstract":"A dual-band dual-polarized patch antenna is proposed for WiMax and WLAN systems. Impedance bandwidths of 7.5% and 9.6% can be achieved at 3.6 GHz and 5.2 GHz, respectively. The asymmetrical U-slot has been used to generate the orthogonal modes for circular polarization at 3.6 GHz with a 3dB axial ratio bandwidth of 0.7%, and the linear polarization is obtained by cutting a symmetrical U-slot on the patch. Higher gains at both CP and LP bands are obtained simultaneously. The peak gains in lower and higher bands are 8.5 dBic and 8.6 dBi, respectively. The simulated results of the antenna have been presented and discussed.","PeriodicalId":6321,"journal":{"name":"2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78220775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/IMWS-BIO.2013.6756238
Peng Li, Lei Yao, M. Je
This paper describes the digital system for neural recording and stimulation, which is designed for bionic neural link (BNL). The digital design for neural recording converts the multi-channel neural spikes as one trigger command and sends out via wireless channel. The digital stimulation design generates the adaptive arbitrary waveform to stimulate the muscle when a trigger signal comes. The digital system is designed in a 0.18 μm CMOS process and the power of the digital system for neural recording and stimulation chip is 80 μW and 130 μW with supplying by 1.8V voltage, respectively.
{"title":"Digital system design for wireless bionic neural link","authors":"Peng Li, Lei Yao, M. Je","doi":"10.1109/IMWS-BIO.2013.6756238","DOIUrl":"https://doi.org/10.1109/IMWS-BIO.2013.6756238","url":null,"abstract":"This paper describes the digital system for neural recording and stimulation, which is designed for bionic neural link (BNL). The digital design for neural recording converts the multi-channel neural spikes as one trigger command and sends out via wireless channel. The digital stimulation design generates the adaptive arbitrary waveform to stimulate the muscle when a trigger signal comes. The digital system is designed in a 0.18 μm CMOS process and the power of the digital system for neural recording and stimulation chip is 80 μW and 130 μW with supplying by 1.8V voltage, respectively.","PeriodicalId":6321,"journal":{"name":"2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78936864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/IMWS-BIO.2013.6756247
Basari, Dony Canisius Sirait, F. Zulkifli, E. Rahardjo
Currently, most of implanted medical devices are using inductive coupling for communication, which leads to difficulty in transmitting medical data records for several meters range. In order for the implanted device is able to be used in longer range transmission, the device is wirelessly transmitted in the form of electromagnetic signals. This initiates us to study on a patient home monitoring system, in which the external devices such as portable equipments will provide a benefit for healthcare provider in accessing the important patient medical information via a networked connection. Because of this reason, an electrically small antenna for implantable devices is very essential components in monitoring systems to provide wirelessly communication between a patient and an access point. In this paper, a helical folded dipole antenna for an implantable device is proposed for wireless patient monitoring system. The implanted device is assumed to be applied by a syringe injection allowing to the device is simply injected into the human body. The proposed antenna is operated in UHF band 924 MHz, as a band of Indonesian RFID applications. The antenna is quite small in comparison to the band operation (ka≈0.08). Sufficient electrical performances are obtained such as reflection coefficient, impedance bandwidth, radiation pattern and gain. According to the link budget analysis, the proposed antenna has adequate gain within 10m transmission range by 225 MHz bandwidth (VSWR ≤ 2).
{"title":"A helical folded dipole antenna for medical implant communication applications","authors":"Basari, Dony Canisius Sirait, F. Zulkifli, E. Rahardjo","doi":"10.1109/IMWS-BIO.2013.6756247","DOIUrl":"https://doi.org/10.1109/IMWS-BIO.2013.6756247","url":null,"abstract":"Currently, most of implanted medical devices are using inductive coupling for communication, which leads to difficulty in transmitting medical data records for several meters range. In order for the implanted device is able to be used in longer range transmission, the device is wirelessly transmitted in the form of electromagnetic signals. This initiates us to study on a patient home monitoring system, in which the external devices such as portable equipments will provide a benefit for healthcare provider in accessing the important patient medical information via a networked connection. Because of this reason, an electrically small antenna for implantable devices is very essential components in monitoring systems to provide wirelessly communication between a patient and an access point. In this paper, a helical folded dipole antenna for an implantable device is proposed for wireless patient monitoring system. The implanted device is assumed to be applied by a syringe injection allowing to the device is simply injected into the human body. The proposed antenna is operated in UHF band 924 MHz, as a band of Indonesian RFID applications. The antenna is quite small in comparison to the band operation (ka≈0.08). Sufficient electrical performances are obtained such as reflection coefficient, impedance bandwidth, radiation pattern and gain. According to the link budget analysis, the proposed antenna has adequate gain within 10m transmission range by 225 MHz bandwidth (VSWR ≤ 2).","PeriodicalId":6321,"journal":{"name":"2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74416491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/IMWS-BIO.2013.6756172
Arthorn Sanpamch, Kusol Petsarb, W. Sroykham, W. Angkhananuwat, C. Phairoh, C. Apaiwong, S. Thanangkul, Y. Kajornpredanon, Pattarapong Phasukki
Bone drilling is an important medical maneuver in a general orthopedic surgery. Hole drilling by using a conventional mechanical rotary drill is avoidable for a tiny bone chip and a corrosion of drill bit. An application of microwave energy to drill a hard cortical bone is even though proposed by some researchers but an investigation of thermal interaction at a drill site is still remain promising especially in a term of simulation. This research investigates a microwave thermal ablation for bone drilling through a 3D FEM solver. Microwave drill applicator was designed as an opened-tip coaxial antenna which inserted into a center of cortical bone model. Temperature pattern at hot spot and estimate drilled hole size was predicted finally. These useful simulation results can be basically applied in a design and development of a practical microwave bone drilling system in a near future.
{"title":"An investigation of microwave ablation for bone thermal drilling","authors":"Arthorn Sanpamch, Kusol Petsarb, W. Sroykham, W. Angkhananuwat, C. Phairoh, C. Apaiwong, S. Thanangkul, Y. Kajornpredanon, Pattarapong Phasukki","doi":"10.1109/IMWS-BIO.2013.6756172","DOIUrl":"https://doi.org/10.1109/IMWS-BIO.2013.6756172","url":null,"abstract":"Bone drilling is an important medical maneuver in a general orthopedic surgery. Hole drilling by using a conventional mechanical rotary drill is avoidable for a tiny bone chip and a corrosion of drill bit. An application of microwave energy to drill a hard cortical bone is even though proposed by some researchers but an investigation of thermal interaction at a drill site is still remain promising especially in a term of simulation. This research investigates a microwave thermal ablation for bone drilling through a 3D FEM solver. Microwave drill applicator was designed as an opened-tip coaxial antenna which inserted into a center of cortical bone model. Temperature pattern at hot spot and estimate drilled hole size was predicted finally. These useful simulation results can be basically applied in a design and development of a practical microwave bone drilling system in a near future.","PeriodicalId":6321,"journal":{"name":"2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72882028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/IMWS-BIO.2013.6756153
K. Thotahewa, Jean-Michel Redouté, M. Yuce
Ultra Wide Band (UWB) can be considered as a lucrative wireless technology for Wireless Body Area Network (WBAN) applications that demand for power stringent operation, high data rate and low form factor. The main drawback of the UWB technology is its receiver complexity. In order to overcome this barrier, this paper presents an implementation of a WBAN sensor node that uses UWB for data transmission and narrow band for data reception. This unique technique provides a means of achieving low power consuming sensor nodes with high data rate capability. The compact sensor platforms are implemented using off-the-shelf components; hence presents an economically viable solution for both commercial and research purposes.
{"title":"Implementation of a dual band body sensor node","authors":"K. Thotahewa, Jean-Michel Redouté, M. Yuce","doi":"10.1109/IMWS-BIO.2013.6756153","DOIUrl":"https://doi.org/10.1109/IMWS-BIO.2013.6756153","url":null,"abstract":"Ultra Wide Band (UWB) can be considered as a lucrative wireless technology for Wireless Body Area Network (WBAN) applications that demand for power stringent operation, high data rate and low form factor. The main drawback of the UWB technology is its receiver complexity. In order to overcome this barrier, this paper presents an implementation of a WBAN sensor node that uses UWB for data transmission and narrow band for data reception. This unique technique provides a means of achieving low power consuming sensor nodes with high data rate capability. The compact sensor platforms are implemented using off-the-shelf components; hence presents an economically viable solution for both commercial and research purposes.","PeriodicalId":6321,"journal":{"name":"2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77781392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/IMWS-BIO.2013.6756160
Lei Yao, Jianming Zhao, Peng Li, Xu Liu, Y. Xu, M. Je
Considerable scientific and technological effort has been devoted to develop implantable wireless stimulator systems for biomedical applications. The main purpose of such stimulator system is to provide electrical excitation to human body cells to help patient re-gain lost body function or rectify fault body function, in an elegant way that there is no notable cosmetic difference when patients are equipped with these systems. This paper provides a brief summary of the historical timeline of the electrical stimulator and reviews challenges in the development of implantable wireless stimulator system. At last of this paper a system architecture design of an implantable stimulator system is given as an example for a specific muscle stimulation application.
{"title":"Implantable stimulator for biomedical applications","authors":"Lei Yao, Jianming Zhao, Peng Li, Xu Liu, Y. Xu, M. Je","doi":"10.1109/IMWS-BIO.2013.6756160","DOIUrl":"https://doi.org/10.1109/IMWS-BIO.2013.6756160","url":null,"abstract":"Considerable scientific and technological effort has been devoted to develop implantable wireless stimulator systems for biomedical applications. The main purpose of such stimulator system is to provide electrical excitation to human body cells to help patient re-gain lost body function or rectify fault body function, in an elegant way that there is no notable cosmetic difference when patients are equipped with these systems. This paper provides a brief summary of the historical timeline of the electrical stimulator and reviews challenges in the development of implantable wireless stimulator system. At last of this paper a system architecture design of an implantable stimulator system is given as an example for a specific muscle stimulation application.","PeriodicalId":6321,"journal":{"name":"2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83722256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/IMWS-BIO.2013.6756200
Chuan Zheng, T. Hu, S. Qiao, Yongzhi Sun, J. Huangfu, L. Ran
Utilizing Doppler effect to detect bio-signals of vital signs has been attracting more and more interests. In this paper, we propose a time-domain algorithm for the hand gesture recognition. We introduce an extended differentiate and cross-multiply algorithm to solve the null point and the codomain restriction issues in traditional Doppler radar sensors, and retrieve the Doppler bio-signals of a moving hand from the demodulated phase signals based on a configuration of 2 or 3 radar sensors for 2-D or 3-D HGRs. Simulations validate the effectiveness of the proposed approach. Our method is capable of retrieving arbitrary hand movements, making it possible to be used in a wide range of HGR applications.
利用多普勒效应检测生命体征的生物信号已引起越来越多的关注。本文提出了一种用于手势识别的时域算法。我们引入了一种扩展的微分和交叉相乘算法来解决传统多普勒雷达传感器中的零点和上域限制问题，并基于2或3个雷达传感器配置的2- d或3- d hgr，从解调的相位信号中检索运动手的多普勒生物信号。仿真结果验证了该方法的有效性。我们的方法能够检索任意的手部运动，使其有可能在广泛的HGR应用中使用。
{"title":"Doppler bio-signal detection based time-domain hand gesture recognition","authors":"Chuan Zheng, T. Hu, S. Qiao, Yongzhi Sun, J. Huangfu, L. Ran","doi":"10.1109/IMWS-BIO.2013.6756200","DOIUrl":"https://doi.org/10.1109/IMWS-BIO.2013.6756200","url":null,"abstract":"Utilizing Doppler effect to detect bio-signals of vital signs has been attracting more and more interests. In this paper, we propose a time-domain algorithm for the hand gesture recognition. We introduce an extended differentiate and cross-multiply algorithm to solve the null point and the codomain restriction issues in traditional Doppler radar sensors, and retrieve the Doppler bio-signals of a moving hand from the demodulated phase signals based on a configuration of 2 or 3 radar sensors for 2-D or 3-D HGRs. Simulations validate the effectiveness of the proposed approach. Our method is capable of retrieving arbitrary hand movements, making it possible to be used in a wide range of HGR applications.","PeriodicalId":6321,"journal":{"name":"2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82881331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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