Pub Date : 2023-01-22DOI: 10.1109/WiSNeT56959.2023.10046263
A. B. Carman, Changzhi Li
Passive radar has gained considerable interest as a mechanism of characterizing small motions using ambient electromagnetic (EM) energy. Compared to traditional Doppler radar, passive radar offers a means of motion detection leveraging existing signals such as Wi-Fi or Bluetooth to reduce crowding in the EM spectrum. Previous works have demonstrated an ability to detect periodic motions using passive radar but relied on bulky commercial building blocks that increase both size and power consumption of the overall device. Amplification of the low-frequency signals is often accomplished using baseband amplifiers with high-pass behavior, resulting in long startup times when detecting low-frequency motions. In this work, a board-level passive radar operating in the 5-GHz Wi-Fi band is presented as a method of detecting small motions created by human motion. The proposed system offers a compact, efficient method of detecting the Doppler information of a target. A fast-startup baseband amplifier is used as a method of quickly reaching the desired operating point, while keeping cost and complexity low. The radar is tested both in a controlled and experimental setting to verify its effectiveness in detecting small-amplitude motions. The results demonstrate that passive radar offers a low-power solution to detecting motion using ambient signals.
{"title":"Passive Multistatic Wireless Sensing Based on Discrete LNA/Mixer Co-Optimization and Fast-Startup Baseband Amplifier","authors":"A. B. Carman, Changzhi Li","doi":"10.1109/WiSNeT56959.2023.10046263","DOIUrl":"https://doi.org/10.1109/WiSNeT56959.2023.10046263","url":null,"abstract":"Passive radar has gained considerable interest as a mechanism of characterizing small motions using ambient electromagnetic (EM) energy. Compared to traditional Doppler radar, passive radar offers a means of motion detection leveraging existing signals such as Wi-Fi or Bluetooth to reduce crowding in the EM spectrum. Previous works have demonstrated an ability to detect periodic motions using passive radar but relied on bulky commercial building blocks that increase both size and power consumption of the overall device. Amplification of the low-frequency signals is often accomplished using baseband amplifiers with high-pass behavior, resulting in long startup times when detecting low-frequency motions. In this work, a board-level passive radar operating in the 5-GHz Wi-Fi band is presented as a method of detecting small motions created by human motion. The proposed system offers a compact, efficient method of detecting the Doppler information of a target. A fast-startup baseband amplifier is used as a method of quickly reaching the desired operating point, while keeping cost and complexity low. The radar is tested both in a controlled and experimental setting to verify its effectiveness in detecting small-amplitude motions. The results demonstrate that passive radar offers a low-power solution to detecting motion using ambient signals.","PeriodicalId":186233,"journal":{"name":"2023 IEEE Topical Conference on Wireless Sensors and Sensor Networks","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125436609","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 : 2023-01-22DOI: 10.1109/WiSNeT56959.2023.10046213
Hannah Gao, Christopher Williams, V. G. R. Varela, Changzhi Li
Bowing gestures are a key component of violin playing and can be analyzed to provide feedback on a violinist's performance. Radar systems have increasingly been used to recognize human movements but not yet in a musical context. In this study, a portable frequency-modulated continuous-wave (FMCW) radar is used to detect various violin bowing gestures. Range profiles and time-Doppler spectrograms are extracted from the raw signal data, and their unique characteristics allow for the differentiation of different bowing techniques and the recognition of incorrect bowing motions. The results of this study demonstrate the potential of radars in aiding musical instrument training.
{"title":"Violin Gesture Recognition Using FMCW Radars","authors":"Hannah Gao, Christopher Williams, V. G. R. Varela, Changzhi Li","doi":"10.1109/WiSNeT56959.2023.10046213","DOIUrl":"https://doi.org/10.1109/WiSNeT56959.2023.10046213","url":null,"abstract":"Bowing gestures are a key component of violin playing and can be analyzed to provide feedback on a violinist's performance. Radar systems have increasingly been used to recognize human movements but not yet in a musical context. In this study, a portable frequency-modulated continuous-wave (FMCW) radar is used to detect various violin bowing gestures. Range profiles and time-Doppler spectrograms are extracted from the raw signal data, and their unique characteristics allow for the differentiation of different bowing techniques and the recognition of incorrect bowing motions. The results of this study demonstrate the potential of radars in aiding musical instrument training.","PeriodicalId":186233,"journal":{"name":"2023 IEEE Topical Conference on Wireless Sensors and Sensor Networks","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121641098","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 : 2023-01-22DOI: 10.1109/WiSNeT56959.2023.10046234
Torsten Reissland, R. Weigel, Alexander Koelpin, F. Lurz
For a radar based True-Speed-Over-Ground measurement system an interpolation based precision improvement is presented. The system is based on the cross-correlation of two radar receive signals. The theoretical basics of the interpolation are thoroughly introduced and its limits are determined for the general case and for a specific hardware. Measurement results including the interpolation are presented and compared to the former implementation.
{"title":"Theoretical Limits and Interpolation based Improvements of a Correlation Based True-Speed-Over-Ground Estimation","authors":"Torsten Reissland, R. Weigel, Alexander Koelpin, F. Lurz","doi":"10.1109/WiSNeT56959.2023.10046234","DOIUrl":"https://doi.org/10.1109/WiSNeT56959.2023.10046234","url":null,"abstract":"For a radar based True-Speed-Over-Ground measurement system an interpolation based precision improvement is presented. The system is based on the cross-correlation of two radar receive signals. The theoretical basics of the interpolation are thoroughly introduced and its limits are determined for the general case and for a specific hardware. Measurement results including the interpolation are presented and compared to the former implementation.","PeriodicalId":186233,"journal":{"name":"2023 IEEE Topical Conference on Wireless Sensors and Sensor Networks","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131305014","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 : 2023-01-22DOI: 10.1109/WiSNeT56959.2023.10046222
J. Walk, M. Ferdik, L. Rack, Thomas Ussmueller
Identification and localization of hospital equipment (op instruments) or blood bags improves cost-efficiency, safety and provides easy, direct access when needed. The system presented here combines different types of localization in addition to identification with RFID. It is based on passive UHF RFID tags that provide information about distance and angle by means of phase estimation (FD-PDOA and SD-PDOA). This 2-way localization is enhanced by an estimation of the motion within the room via TD-PDOA. This paper presents the discrete hardware setup, the measurement concept and a demonstrator. It shows a maximum measurement tolerance of 0.5 m in distance and 6° in angle estimation, as well as an accuracy of up to 89 % in distance difference under calibrated conditions.
{"title":"2-Way Localization of RFID Tags","authors":"J. Walk, M. Ferdik, L. Rack, Thomas Ussmueller","doi":"10.1109/WiSNeT56959.2023.10046222","DOIUrl":"https://doi.org/10.1109/WiSNeT56959.2023.10046222","url":null,"abstract":"Identification and localization of hospital equipment (op instruments) or blood bags improves cost-efficiency, safety and provides easy, direct access when needed. The system presented here combines different types of localization in addition to identification with RFID. It is based on passive UHF RFID tags that provide information about distance and angle by means of phase estimation (FD-PDOA and SD-PDOA). This 2-way localization is enhanced by an estimation of the motion within the room via TD-PDOA. This paper presents the discrete hardware setup, the measurement concept and a demonstrator. It shows a maximum measurement tolerance of 0.5 m in distance and 6° in angle estimation, as well as an accuracy of up to 89 % in distance difference under calibrated conditions.","PeriodicalId":186233,"journal":{"name":"2023 IEEE Topical Conference on Wireless Sensors and Sensor Networks","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126985256","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 : 2023-01-22DOI: 10.1109/WiSNeT56959.2023.10046265
Thomas Kurin, Marie Horlbeck, Tim Maiwald, R. Weigel, F. Lurz
This paper discusses a novel ultra low power sensor system for monitoring a beehives' health condition, which can be determined by measuring internal temperature and humidity variations. It comprises an autonomous battery powered sensor node which transmits the measured data over a 868 MHz wireless radio link. Expected runtime is greater than 2.1 years.
{"title":"A Wireless Lightweight System Node for Energy Efficient Beehive Sensing","authors":"Thomas Kurin, Marie Horlbeck, Tim Maiwald, R. Weigel, F. Lurz","doi":"10.1109/WiSNeT56959.2023.10046265","DOIUrl":"https://doi.org/10.1109/WiSNeT56959.2023.10046265","url":null,"abstract":"This paper discusses a novel ultra low power sensor system for monitoring a beehives' health condition, which can be determined by measuring internal temperature and humidity variations. It comprises an autonomous battery powered sensor node which transmits the measured data over a 868 MHz wireless radio link. Expected runtime is greater than 2.1 years.","PeriodicalId":186233,"journal":{"name":"2023 IEEE Topical Conference on Wireless Sensors and Sensor Networks","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115808437","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 : 2023-01-22DOI: 10.1109/WiSNeT56959.2023.10046242
Shivakant Mishra, S. Nayak, Ramnarayan Yadav
With the advancement and usage of Internet of Things (IoT), smart agriculture is evolving rapidly. Smart solutions based on IoT can not only help the farmers in maximizing the profits but also help them in reducing the manual supervision of agriculture land. In a smart agriculture system, inexpensive, resource-constrained sensors are installed near the crops as well as at some strategic locations in an agriculture field to collect relevant crop and environment data in real time. This data is then used for both critical, latency-sensitive decision making as well as long-term planning. The key challenges in building a smart agriculture system include high communication latency and bandwidth consumption incurred with computing on the cloud, frequent Internet disconnections in rural areas, and a need for keeping the overall cost low for the end users (farmers). In this paper, we discuss the design and implementation of our on-going, LoRa-based three-tier smart agriculture system comprised of (i) Sensing layer, (ii) Fog layer, and (iii) Cloud layer. In particular, we focus on the how the low-power, low-bandwidth and long-range features of LoRa are utilized to transform traditional agriculture land of rural areas in India into smart agriculture system. We present the performance of our current prototype and compare with the existing, state-of-the-arts framework for smart agriculture system in terms of cost, latency and distance.
{"title":"An Energy Efficient LoRa-based Multi-Sensor IoT Network for Smart Sensor Agriculture System","authors":"Shivakant Mishra, S. Nayak, Ramnarayan Yadav","doi":"10.1109/WiSNeT56959.2023.10046242","DOIUrl":"https://doi.org/10.1109/WiSNeT56959.2023.10046242","url":null,"abstract":"With the advancement and usage of Internet of Things (IoT), smart agriculture is evolving rapidly. Smart solutions based on IoT can not only help the farmers in maximizing the profits but also help them in reducing the manual supervision of agriculture land. In a smart agriculture system, inexpensive, resource-constrained sensors are installed near the crops as well as at some strategic locations in an agriculture field to collect relevant crop and environment data in real time. This data is then used for both critical, latency-sensitive decision making as well as long-term planning. The key challenges in building a smart agriculture system include high communication latency and bandwidth consumption incurred with computing on the cloud, frequent Internet disconnections in rural areas, and a need for keeping the overall cost low for the end users (farmers). In this paper, we discuss the design and implementation of our on-going, LoRa-based three-tier smart agriculture system comprised of (i) Sensing layer, (ii) Fog layer, and (iii) Cloud layer. In particular, we focus on the how the low-power, low-bandwidth and long-range features of LoRa are utilized to transform traditional agriculture land of rural areas in India into smart agriculture system. We present the performance of our current prototype and compare with the existing, state-of-the-arts framework for smart agriculture system in terms of cost, latency and distance.","PeriodicalId":186233,"journal":{"name":"2023 IEEE Topical Conference on Wireless Sensors and Sensor Networks","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130342054","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 : 2023-01-22DOI: 10.1109/wisnet56959.2023.10046208
{"title":"Greetings from General Chair of Radio & Wireless Week 2023","authors":"","doi":"10.1109/wisnet56959.2023.10046208","DOIUrl":"https://doi.org/10.1109/wisnet56959.2023.10046208","url":null,"abstract":"","PeriodicalId":186233,"journal":{"name":"2023 IEEE Topical Conference on Wireless Sensors and Sensor Networks","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123679933","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 : 2023-01-22DOI: 10.1109/WiSNeT56959.2023.10046245
Giordano Cicioni, Raffaele Salvati, R. V. Gatti, V. Palazzi, P. Mezzanotte, L. Roselli, F. Alimenti
In this paper, a novel zero-IF 24-GHz frequency scanning Doppler radar is developed and employed as a vibrometer for the detection of multiple vibrating targets without contact. Exploiting the beam squint of the antennas, the environment can be sensed in different directions by selecting the operating frequency of the transceiver. This frequency scanning radar sensor is a novel and promising alternative to multiple antenna systems. In this work, the frequency scanning feature is combined with a mechanical scan method to reconstruct 2D images of the environment. This research is important to provide directional non-contact monitoring for vital signs from multiple subjects as well as for monitoring of river surface velocity.
{"title":"24-GHz Frequency Scanning Doppler Vibrometer","authors":"Giordano Cicioni, Raffaele Salvati, R. V. Gatti, V. Palazzi, P. Mezzanotte, L. Roselli, F. Alimenti","doi":"10.1109/WiSNeT56959.2023.10046245","DOIUrl":"https://doi.org/10.1109/WiSNeT56959.2023.10046245","url":null,"abstract":"In this paper, a novel zero-IF 24-GHz frequency scanning Doppler radar is developed and employed as a vibrometer for the detection of multiple vibrating targets without contact. Exploiting the beam squint of the antennas, the environment can be sensed in different directions by selecting the operating frequency of the transceiver. This frequency scanning radar sensor is a novel and promising alternative to multiple antenna systems. In this work, the frequency scanning feature is combined with a mechanical scan method to reconstruct 2D images of the environment. This research is important to provide directional non-contact monitoring for vital signs from multiple subjects as well as for monitoring of river surface velocity.","PeriodicalId":186233,"journal":{"name":"2023 IEEE Topical Conference on Wireless Sensors and Sensor Networks","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125401008","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 : 2023-01-22DOI: 10.1109/WiSNeT56959.2023.10046252
Alessandro Tinti, Simon Tejero Alfageme, Sergi Duque Biarge, N. Pohl
An antenna system for a polarimetric automotive radar made of 12 transmitters (Tx) and 16 receivers (Rx), equally divided in ±45° linearly polarized comb-line antenna arrays of 11 elements each and working at 79 GHz, has been designed and developed. The printed circuit board (PCB) has been mounted to a 12×16 Frequency-Modulated Continuous-Wave (FMCW) Radar and its performance are presented after observing copolar and cross-polar targets.
{"title":"Full Polarimetric Antenna System for Automotive Radar","authors":"Alessandro Tinti, Simon Tejero Alfageme, Sergi Duque Biarge, N. Pohl","doi":"10.1109/WiSNeT56959.2023.10046252","DOIUrl":"https://doi.org/10.1109/WiSNeT56959.2023.10046252","url":null,"abstract":"An antenna system for a polarimetric automotive radar made of 12 transmitters (Tx) and 16 receivers (Rx), equally divided in ±45° linearly polarized comb-line antenna arrays of 11 elements each and working at 79 GHz, has been designed and developed. The printed circuit board (PCB) has been mounted to a 12×16 Frequency-Modulated Continuous-Wave (FMCW) Radar and its performance are presented after observing copolar and cross-polar targets.","PeriodicalId":186233,"journal":{"name":"2023 IEEE Topical Conference on Wireless Sensors and Sensor Networks","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115644877","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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