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检索条件"任意字段=8th Sensor Signal Processing for Defence Conference, SSPD 2019"

共 50 条记录，以下是21-30 订阅

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Hybrid Activity Recognition for Ballroom Dance Exercise using Video and Wearable sensor 8

Hybrid Activity Recognition for Ballroom Dance Exercise usin...

引用

Joint 8th International conference on Informatics, Electronics and Vision (ICIEV) / 3rd International conference on Imaging, Vision and Pattern Recognition (icIVPR) / International conference on Activity and Behavior Computing (ABC)

作者： Matsuyama, Hitoshi Hiroi, Kei Kaji, Katsuhiko Yonezawa, Takuro Kawaguchi, Nobuo Nagoya Univ Grad Sch Engn Nagoya Aichi Japan Aichi Inst Technol Fac Informat Sci Toyota Japan

ISBN: (纸本)9781728107882

In this paper, we propose a hybrid activity recognition method for ballroom dance exercise using video and wearable sensor. the purpose of our research is to design a mechanism to support ballroom dance exercise, and this paper reports the first part to design a mechanism is to support ballroom dance exercise, and this paper reports the first outcome to achieve the purpose - recognizing ballroom dance exercise. there are two conceivable ways to recognize dance exercise: videos and wearable sensor. However, each of them has its disadvantages. Using video is a good way to recognize the movement of the body. However, it cannot provide us accurate timing or strength of foot actions because the number of their flames per seconds is too small to recognize the fast movements of dancers. On the other hand, while a wearable sensor is good at recognizing foot timing and strength, it is not good at recognizing the movement of the whole body. therefore we propose a hybrid recognition method utilizing the merits of both video and wearable sensor. this paper focuses to recognize four different types of steps in Latin American, a kind of ballroom dance. For each step, we record wearable sensing data and videos. As a result, it is found that the accuracy of step recognition is improved by adding wearable sensing data to video data shot from two different angles.

关键词： Wearable sensors Video signal processing Machine learning Activity Recognition

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Compact CPW-fed square ring annular slot antenna for WBAN applications 8

Compact CPW-fed square ring annular slot antenna for WBAN ap...

引用

8th IEEE International conference on Communication and signal processing, ICCSP 2019

作者： Shah, Arpan Patel, Piyush N. Sensor Research Laboratory Electronics Engineering Department Sardar Vallabhbhai National Institute of Technology Surat395007 India

ISBN: (纸本)9781538675953

Miniaturized microstrip antenna design with low dispersion, high directivity, low cross polarization, integration with active circuits and better return loss for Wireless Body Area Network (WBAN) applications is a challenging task. To obtain the desired requirement, a novel Co-Planar Waveguide (CPW) fed compact square ring annular slot antenna of dimension 28 × 28 mm is proposed for WBAN applications. Analysis of the square ring antenna with and without annular slot with respect to reflection coefficient parameter is carried out. It has been observed the proposed antenna exhibits a better reflection coefficient parameter of -50.72 dB at 2.4 GHz ISM band as compare to square ring antenna without annular slot with minimal trade-off in fractional bandwidth. A quarter wavelength slot λg/4 in the form of square ring is fed by co-planar waveguide technique. Simulation tool software is used for evaluating the best reflection coefficient results. © 2019 IEEE.

关键词： Coplanar waveguides

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A Fiber Bragg Grating Acceleration sensor for Measuring Bow Slamming Load 8th

A Fiber Bragg Grating Acceleration Sensor for Measuring Bow ...

引用

8th International conference on Communications, signal processing, and Systems, CSPS 2019

作者： Yang, Jingping Wang, Wei Li, Yuliang Qiao, Libo Liu, ChuanQi Tianjin Key Laboratory of Wireless Mobile Communications and Power Transmission Tianjin Normal University Tianjin300387 China

ISBN: (纸本)9789811394089

In view of the serious consequences of Slamming Loads on ships at high speed, a fiber Bragg grating acceleration sensor for measuring the Slamming Loads on bows is designed in this paper. It is mainly composed of the sensor shell, the sensor shell cover, the accelerometer sensitive devices and the hinge structure, which realize the automatic monitoring of the Slamming Loads on bows. the experimental results show that the sensitivity of the sensor is 295 pm/g in the frequency range of 0–100 Hz. © 2020, Springer Nature Singapore Pte Ltd.

关键词： Fiber Bragg gratings

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Localization Algorithm Based on FM for Mobile Wireless sensor Networks 8th

Localization Algorithm Based on FM for Mobile Wireless Senso...

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8th International conference on Communications, signal processing, and Systems, CSPS 2019

作者： Xue, Wei-cheng Hua, Yu Ju, Jun University of Chinese Academy of Sciences Beijing China National Time Service Center the Chinese Academy of Sciences Xi’an China Jiangsu Broadcasting Corporation Nanjing China

ISBN: (纸本)9789811394089

the problem of mobile sensor network location has always been a core technical problem that needs to be broken in the application of IoT. the existing location method is difficult to effectively solve the problem of the location of unknown nodes in the mobile environment. Although the Monte Carlo method is more suitable for dynamic sensor networks than other existing positioning algorithms, this algorithm still has bottleneck problems such as low positioning accuracy and low security. this paper proposes a high-security Monte Carlo positioning method based on FM signal characteristics (FM-MCL). Compared with the traditional KNN, SVM and MCL algorithms, FM-MCL significantly improves the security performance of the algorithm. the positioning accuracy of the algorithm makes the positioning accuracy still less than 20% in the environment of malicious attack. © 2020, Springer Nature Singapore Pte Ltd.

关键词： Monte Carlo methods

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Multiple Hybrid Strategies Filtrate Localization Based on FM for Wireless sensor Networks 8th

Multiple Hybrid Strategies Filtrate Localization Based on FM...

引用

8th International conference on Communications, signal processing, and Systems, CSPS 2019

作者： Xue, Wei-Cheng Hua, Yu Ju, Jun University of Chinese Academy of Sciences Beijing China National Time Service Center The Chinese Academy of Sciences Xi’an China Jiangsu Broadcasting Corporation Nanjing China

ISBN: (纸本)9789811394089

Aiming at the malicious attack problem in FM positioning, based on the characteristics of FM broadcast signal, a kind of FM Multiple hybrid Strategy Filtrate Localization (FMFL) is proposed: according to the current FM signal characteristics, the reasonable distance error range of each anchor node is determined, which is effective. the effect of joint attack and other methods on the performance of the positioning algorithm is reduced. At the same time, in order to improve the positioning accuracy of the algorithm more effectively, the positioning process is divided into two stages: anchor node validity verification and positioning calculation. the experimental results show that this method can obtain higher security and positioning accuracy in the presence of multiple malicious attacks. © 2020, Springer Nature Singapore Pte Ltd.

关键词： Network security

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Ethanol Gas sensor Based on SnO2 Hierarchical Nanostructure 8th

Ethanol Gas Sensor Based on SnO2 Hierarchical Nanostructure

引用

8th International conference on Communications, signal processing, and Systems, CSPS 2019

作者： Zhu, Ming Pi, Yongxiang Zhang, Huijun Electronic Engineering College Heilongjiang University 74 Xuefu Road HarbinHeilongjiang China College of Materials and Chemical Engineering Hezhou University No. 18 of Xihuan Road HezhouGuangxi China

ISBN: (纸本)9789811394089

three-dimensional (3D) hierarchical nanomaterials assembled by nanosheets were synthesized by a facile hydrothermal method, without using any templates. Interestingly, it is explored that the sensor based on the 3D SnO2 hierarchical architectures reveals outstanding gas sensing performances towards ethanol. these excellent sensing performances mainly attribute to 3D SnO2 hierarchical architectures with a large resistance change occurred in air and ethanol gas. the structure and morphology of the resultant samples were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). the sensor sensitivity to 250 ppm ethanol is 11.6 at 240 °C. © 2020, Springer Nature Singapore Pte Ltd.

关键词： Nanosheets

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Robust sensor Geometry Design in Sky-Wave Time-Difference-of-Arrival Localization Systems 8th

Robust Sensor Geometry Design in Sky-Wave Time-Difference-of...

引用

8th International conference on Communications, signal processing, and Systems, CSPS 2019

作者： Ma, He Mao, Xing-peng Zhang, Tie-nan Harbin Institute of Technology Harbin China The Key Laboratory of Marine Environmental Monitoring and Information Processing Ministry of Industry and Information Harbin China

ISBN: (纸本)9789811394089

this paper studies the sensor geometry design problem of sky-wave time-difference-of-arrival (TDOA) localization systems under non-line-of-sight (NLOS) scenario where signals are reflected by ionosphere-layer before arriving at sensors. Traditionally, the optimal sensor geometries for line-of-sight (LOS) scenarios have been derived. However, ionosphere-layer heights (IHs) are generally inaccurately known. IH errors can severely degrade localization performance but the joint estimation of IHs and target location is conventionally an ill-conditioning problem. To solve this problem, we propose a grouped sensor geometry, which enables the joint estimation of IHs and target location. In this way, we improve the robustness against IH errors in sky-wave TDOA localization. theoretical analysis and performance comparison validate that the superiority of our proposed grouped sensor geometry. © 2020, Springer Nature Singapore Pte Ltd.

关键词： Time difference of arrival

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threat-Based sensor Management For Multi-target Tracking 8th

Threat-Based Sensor Management For Multi-target Tracking

引用

8th International conference on Communications, signal processing, and Systems, CSPS 2019

作者： Lan, Yuqi Liang, Jing School of Information and Communication Engineering University of Electronic Science and Technology of China Chengdu China

ISBN: (纸本)9789811394089

Multi-sensor management for multi-target tracking is a theoretically and computationally challenging problem. A multi-sensor management algorithm is proposed within the partially observed Markov decision process (POMDP) framework, and cardinality balanced multi-target multi-Bernoulli (CBMeMBer) filter is applied to track targets. the novelties lie in evaluating the threat degree of the targets using the analytic hierarchy process (AHP) and the threat-based sensor selection algorithm. Considering distance, speed and heading of targets, we use the AHP to evaluate the threat degree of targets at each sampling time. Based on the threat level of targets and detection distance of sensors, the sensor-target matching algorithm is proposed. Numerical studies are presented in the dynamical system. the simulation results show the feasibility of the method. © 2020, Springer Nature Singapore Pte Ltd.

关键词： Target tracking

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A Fiber Bragg Grating Stress sensor for Hull Local Strength Measurement 8th

A Fiber Bragg Grating Stress Sensor for Hull Local Strength ...

引用

8th International conference on Communications, signal processing, and Systems, CSPS 2019

作者： Liu, Chuanqi Wang, Wei Li, Yuliang Qiao, Libo Yang, Jingping Tianjin Key Laboratory of Wireless Mobile Communications and Power Transmission Tianjin Normal University Tianjin300387 China

ISBN: (纸本)9789811394089

In this paper, a fiber grating stress sensor for measuring the local strength of the hull is introduced. the optical fiber stuck between the fixed plates on both sides of the sensor is deformed when the part of the hull in which the sensor is mounted is subjected to an external force, causing the wavelength of the fiber grating to change. the local intensity variation of the hull will be solved by the wavelength variation of the fiber grating. the meter shows that the deformation of the fiber grating is linear with the wavelength change of the fiber grating. To this end, the compensation algorithm of the demodulator can change the stress of the hull structure and the wavelength of the fiber grating. therefore, the sensor enables real-time monitoring of local stresses in the ship’s structure in harsh marine environments. © 2020, Springer Nature Singapore Pte Ltd.

关键词： Fiber Bragg gratings

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Comparative Evaluation of New Low-Cost Particulate Matter sensors 8

Comparative Evaluation of New Low-Cost Particulate Matter Se...

引用

8th International conference on Future Internet of things and Cloud, FiCloud 2021

作者： Patwardhan, Ishan Sara, Spanddhana Chaudhari, Sachin Signal Processing and Communication Research Centre International Institute of Information Technology Hyderabad India

ISBN: (纸本)9781665425742

In recent times, a few new low-cost sensors have been introduced to the global market for monitoring particulate matter (PM). In this paper, the performance of three such low-cost PM sensors, namely SDS011, Prana Air, and SPS30, for measuring PM2.5 and PM 10 levels is evaluated against a standard reference Aeroqual Series-500. the test setup was exposed to PM concentrations ranging from 30 μg/cm3 to 600 μ g/cm3. the results were based on 1 min, 15 min, 30 min, and 1 hr average readings. the experiments were carried out in indoor as well as outdoor environments. the comparative evaluation was performed before and after calibration. the performance of these sensors is evaluated in terms of coefficient of determination R2), coefficient of variation (Cv) and root mean square error (RMSE). Evaluation results show that these low-cost sensors have good performance after calibration with a reference sensor. © 2021 IEEE.

关键词： Calibration

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