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2019 6th International Conference on Signal Processing and Integrated Networks (SPIN)最新文献

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Convolutional Neural Network Array for Sign Language Recognition Using Wearable IMUs 基于可穿戴imu的卷积神经网络阵列手语识别
Karush Suri, Rinki Gupta
Advancements in gesture recognition algorithms have led to a significant growth in sign language translation. By making use of efficient intelligent models, signs can be recognized with precision. The proposed work presents a novel one-dimensional Convolutional Neural Network (CNN) array architecture for recognition of signs from the Indian sign language using signals recorded from a custom designed wearable IMU device. The IMU device makes use of tri-axial accelerometer and gyroscope. The signals recorded using the IMU device are segregated on the basis of their context, such as whether they correspond to signing for a general sentence or an interrogative sentence. The array comprises of two individual CNNs, one classifying the general sentences and the other classifying the interrogative sentence. Performances of individual CNNs in the array architecture are compared to that of a conventional CNN classifying the unsegregated dataset. Peak classification accuracies of 94.20% for general sentences and 95.00% for interrogative sentences achieved with the proposed CNN array in comparison to 93.50% for conventional CNN assert the suitability of the proposed approach.
手势识别算法的进步导致了手语翻译的显著增长。通过使用高效的智能模型,可以精确地识别符号。这项工作提出了一种新的一维卷积神经网络(CNN)阵列架构,用于使用定制设计的可穿戴IMU设备记录的信号识别来自印度手语的信号。IMU装置采用三轴加速度计和陀螺仪。使用IMU设备记录的信号是根据其上下文进行区分的,例如它们是对应于一般句子还是疑问句的签名。该数组由两个独立的cnn组成,一个对一般句子进行分类,另一个对疑问句进行分类。将阵列架构下单个CNN的性能与传统CNN对未分离数据集进行分类的性能进行了比较。与传统CNN的93.50%相比,本文提出的CNN阵列对一般句和疑问句的最高分类准确率分别达到了94.20%和95.00%,这表明本文提出的方法是合适的。
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引用次数: 11
Experimental Analysis of Power Generation for Ultra-Low Power Wireless Sensor Nodes Using Various Coatings on Thermoelectric Energy Harvester 热电能量采集器上不同涂层超低功耗无线传感器节点发电的实验分析
Deepshikha Yadav, Puneet Azad
An experimental data analysis to investigate the output performance of thermoelectric generator (TEG) is presented in this paper. Thermally conducting materials, Al, Fe and matte finish metal paint, are tested to study the increase in heat absorbance by TEG. An experimental thermoelectric set-up comprising Peltier cell (TEC1-12706), commercially available, is designed to convert the ambient solar energy from sun into electrical energy suitable for powering micro/small power devices. The analysis of open circuit output DC voltages shows that paint coated Al sheet increases the output voltage considerably. A matte finish paint coated Al sheet mounted on hotter side of TEG is generating a maximum voltage of 0.76 V. An array of three such TEG modules generated a maximum voltage value 2.28 V, sufficient to power up low and ultra low power wireless sensor device and modules. The present set-up provides promising alternative to power low power devices like WSN, hearing aids, wireless temperature sensor etc. instead of using battery thereby enhancing their lifetime.
本文对热电发电机(TEG)的输出性能进行了实验数据分析。用TEG测试了导热材料Al, Fe和哑光金属漆,研究了热吸收率的增加。由Peltier电池(TEC1-12706)组成的实验性热电装置(市售),旨在将环境太阳能从太阳转化为适合为微型/小型动力设备供电的电能。对开路输出直流电压的分析表明,涂漆铝板可显著提高输出电压。安装在TEG热侧的哑光涂层铝板产生的最大电压为0.76 V。由三个这样的TEG模块组成的阵列产生的最大电压值为2.28 V,足以为低功耗和超低功耗无线传感器设备和模块供电。目前的设置为WSN,助听器,无线温度传感器等低功耗设备提供了有希望的替代方案,而不是使用电池,从而提高了它们的使用寿命。
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引用次数: 2
DVCCCTA Based High Input Impedance VM Biquad Filter by the Use of Minimum Number of Active Block and all Grounded Passive Elements 基于DVCCCTA的高输入阻抗VM双路滤波器,采用最小有源块数和所有接地无源元件
Chetan Shankar, S. V. Singh, Raza Imam, V. Tikkiwal
A new biquad filter (BF) topology is proposed in this paper which uses only single newly reported active element called differential voltage current controlled conveyor trans-conductance amplifier (DVCCCTA). In addition to single DVCCCTA, the circuit also consists of two resistors and two capacitors with each passive elements being grounded. Moreover, on applying the single input voltage signal at high impedance terminal, the proposed BF produces three different classes of voltage mode filtering responses, simultaneously, as band pass (BP), low pass (LP), and high pass (HP). Thus, the proposed BF is voltage input voltage output (VIVO) type configuration and hence, also be called voltage mode (VM) filter. Apart from its design simplicity, the circuit offers many attractive features such as minimum active element count, all grounded passive elements, acceptable range of total harmonic distortion (THD) and low value of active/passive sensitivity performances, etc. Furthermore, the pole frequency ($omega_{0}$) of the circuit can also be tuned independently of quality factor (Q0) by current means. Finally, the proposed circuit performance has been verified using $0.25mumathrm{m}$ standard CMOS technology in PSPICE software.
本文提出了一种新的双四滤波器拓扑结构,该拓扑结构只使用新近报道的单个有源元件——差压电流控制输送跨导放大器(DVCCCTA)。除了单个DVCCCTA外,该电路还包括两个电阻和两个电容,每个无源元件都接地。此外,在高阻抗端施加单输入电压信号时,所提出的BF同时产生三种不同类型的电压模式滤波响应,即带通(BP)、低通(LP)和高通(HP)。因此,所提出的BF是电压输入电压输出(VIVO)型配置,因此也称为电压模式(VM)滤波器。除了设计简单外,该电路还提供了许多吸引人的特点,如最小的有源元件数量,所有接地的无源元件,总谐波失真(THD)的可接受范围和低的有源/无源灵敏度性能值等。此外,电路的极点频率($omega_{0}$)也可以通过电流手段独立于质量因子(Q0)进行调谐。最后,在PSPICE软件中使用$0.25mumathrm{m}$标准CMOS技术验证了所提电路的性能。
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引用次数: 1
Suitability of Singular Value Decomposition for Image Watermarking 奇异值分解在图像水印中的适用性
Neha Singh, Sandeep Joshi, S. Birla
Digital images are extensively used and exchanged through internet, which gave rise to the need of establishing authorship of images. Image watermarking has provided a solution to prevent false claims of ownership of the media. Information about the owner, generally in the form of a logo, text or image is imperceptibly hid into the subject. Many transforms have been explored by the researcher community for image watermarking. Many watermarking techniques have been developed based on Singular Value Decomposition (SVD) of images. This paper analyses Singular Value Decomposition to understand its use, ability and limitations to hide additional information into the cover image for Digital Image Watermarking application.
数字图像在互联网上被广泛使用和交换,这就产生了建立图像作者身份的需要。图像水印提供了一种解决方案,以防止媒体所有权的虚假声明。关于所有者的信息,一般以标志、文字或图像的形式,不知不觉地隐藏在主题中。对于图像水印,研究者们已经探索了许多变换方法。许多基于图像奇异值分解(SVD)的水印技术被开发出来。本文通过分析奇异值分解,了解其在数字图像水印中隐藏附加信息的用途、能力和局限性。
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引用次数: 3
Orbital Angular Momentum and Spin Angular Momentum New Method for Radar Imaging with Wavelet Transforms 小波变换雷达成像的轨道角动量和自旋角动量新方法
M. Khulbe, M. Tripathy, H. Parthasarathy
Orbital angular momentum in this paper is being proposed as a new application basis for radar imaging. The orbital angular momentum due to the polarization in the traditional communication system in time domain and frequency domain introduces extra advantages. Orbital angular momentum (OAM) can combine multiple free space radio communication channels and it can transform a single carrier frequency in radio communication to radar imaging. In wireless communication, people utilize this technology against fading and to improve the reliability of communication enhancing signal quality at receiver section of a radar with OAM based signal. In this paper using quantum optics, mathematical equations are simulated for OAM waves and its wavelet transforms are introduced for imaging. The Wavelets Transform simulation model results validate the performance of polarization with improve resolution, and signal strength for imaging in radar.
本文提出了轨道角动量作为雷达成像新的应用基础。由于轨道角动量的极化,在传统通信系统的时域和频域都引入了额外的优势。轨道角动量(OAM)可以组合多个自由空间无线电通信信道,将无线电通信中的单个载波频率转换为雷达成像。在无线通信中,人们利用这种技术来对抗衰落和提高通信的可靠性,从而提高基于OAM信号的雷达接收部分的信号质量。本文利用量子光学方法模拟了OAM波的数学方程,并引入了其小波变换进行成像。小波变换仿真模型的结果验证了极化的性能,提高了成像分辨率和信号强度。
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引用次数: 1
Low Power and High Frequency Voltage Controlled Oscillator for PLL Application 用于锁相环的低功率高频压控振荡器
Ravi Ranjan, A. Raman, N. Kashyap
This paper presents NMOS-DTMOS Technique for designing ring voltage controlled oscillator (RVCO) for low power PLL application. A 1.2 GHz RVCO is designed in SCL 180nm CMOS technology. By using DTMOS technique switching of MOSFET is improved. Power switching is used to improved the power dissipation of proposed RVCO. A single ended five stage power switching RVCO is designed for frequency of 1.22 GHz with 1mW power Dissipation. The Phase Noise at 1MHz offset frequency is −94dBc/Hz.
本文提出了采用NMOS-DTMOS技术设计低功耗环锁相环压控振荡器(RVCO)。采用SCL 180nm CMOS技术设计了1.2 GHz RVCO。利用DTMOS技术改进了MOSFET的开关。采用功率开关技术改善了RVCO的功耗。设计了一种单端五级功率开关RVCO,工作频率为1.22 GHz,功耗为1mW。偏移1MHz时的相位噪声为- 94dBc/Hz。
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引用次数: 3
Design of Substrate Integrated Waveguide Leaky Wave Antenna for RFID Application in ISM Band ISM波段RFID基板集成波导漏波天线设计
Tanvi Agrawal, S. Srivastava, P. Vishnoi
This paper presents design of a novel SIW substrate integrated leaky wave antenna for RFID applications. Proposed antenna radiates in broadside direction in 2.42-2.65 GHz frequency range. The FR4 substrate of dielectric constant 4.4 with a thickness of 1.6mm is used to design the antenna. To feed the proposed antenna, a SIW to microstrip line transition is also designed. To make the SIW work as a leaky wave antenna, some slots are cut on the upper surface of metal plate of the SIW which causes leakage of wave from the upper edge of proposed SIW. Effect of varying the size of slots has also been analyzed. Design is supported by S-parameters graph, radiation patterns and current distribution. Designed antenna is fabricated and then tested using VNA. All the Results are in well agreement with measured one.
本文设计了一种用于RFID应用的新型SIW基板集成漏波天线。所提出的天线在2.42 ~ 2.65 GHz频率范围内朝宽方向辐射。天线采用介电常数为4.4,厚度为1.6mm的FR4衬底设计。为了给天线供电,还设计了SIW到微带线的过渡。为了使SIW作为漏波天线工作,在SIW的金属板上表面开一些槽,使波从所提出的SIW的上边缘泄漏。分析了不同狭缝尺寸的影响。设计支持s参数图,辐射方向图和电流分布。设计的天线制作完成,并进行VNA测试。所得结果与实测结果吻合较好。
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引用次数: 1
Human Visual System Based Enhanced AMBTC for Color Image Compression Using Interpolation 基于人眼视觉系统的增强AMBTC插值彩色图像压缩
R. Kumar, Samayveer Singh, K. Jung
This paper proposes a novel enhanced AMBTC image compression method for digital color images which uses the characteristics of human visual system. The proposed compression method first transforms the RGB image into YCbCr color space and then divides each component of the image into non-overlapping blocks. To improve the imperceptibility of caused distortion due to AMBTC compression, the proposed method computes four quantization levels and 32 bits bit-planes for luminance component (Y) blocks whereas the blocks of the remaining two components (i.e., Cb & Cr) are represented by two quantization levels and only 8 bits bit-planes. At the receiving end, the receiver can use interpolation technique to predict the remaining 8 bits of the bit-planes of Cb and Cr components. Thus, the proposed method provides better quality stego-image than the related existing methods, Further, the required bit-rate is also reduced for all the test images irrespective of their characteristics.
利用人眼视觉系统的特点,提出了一种新的增强AMBTC图像压缩方法。提出的压缩方法首先将RGB图像转换为YCbCr颜色空间,然后将图像的每个分量划分为不重叠的块。为了提高AMBTC压缩引起的失真的不可感知性,该方法对亮度分量(Y)块计算4个量化级别和32位位平面,而其余两个分量(即Cb和Cr)块由2个量化级别和8位位平面表示。在接收端,接收机可以利用插值技术预测Cb和Cr分量位平面的剩余8位。因此,该方法提供了比现有方法更好的隐写图像质量,并且降低了所有测试图像所需的比特率,而不考虑其特征。
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引用次数: 11
Performance Evaluation of a Dual-Mode OFDM and SC-FDE System at mmWave Enabling Joint Radar and 5G Multi-Gigabit/s Wireless Communications 毫米波下双模OFDM和SC-FDE系统实现联合雷达和5G多千兆无线通信的性能评估
Rodolfo Gomes, K. Sobaihi, A. Hammoudeh, R. Caldeirinha
In this paper we introduce a dual-mode OFDM/SC-FDE 60 GHz millimeter wave (mmWave) Physical (PHY) layer to provide both radar and transmission data rates over 10 Gbps, as known as radar type sensors and wireless communications (Rad-Com). Such feature goes towards one of the vertical requirements for future wireless communications, such as 5G. The system is evaluated and assessed through metrics of BER and required $E_{b}/N_{0}$ for a target BER of 10−5, under both residential LOS and NLOS scenarios. In the simulation results, it is demonstrated that SC-FDE is more robust against RF impairments, and does not requires channel coding contrary to OFDM. In addition to this, the fact that it has lower peak-to-average power ratio (PAPR), makes such transmission scheme a very promising alternative to OFDM. For example, employing 256 QAM modulation, it has 6 dB of $E_{b}/N_{0}$ gain in comparison with OFDM, under the same conditions.
在本文中,我们介绍了一种双模OFDM/SC-FDE 60 GHz毫米波(mmWave)物理层(PHY),以提供超过10 Gbps的雷达和传输数据速率,称为雷达型传感器和无线通信(Rad-Com)。这种特性是未来无线通信(如5G)的垂直要求之一。在住宅LOS和NLOS两种情况下,通过误码率指标和目标误码率为10−5时所需的$E_{b}/N_{0}$对系统进行评估。仿真结果表明,SC-FDE对射频损伤具有更强的鲁棒性,并且不需要与OFDM相反的信道编码。除此之外,它具有较低的峰均功率比(PAPR),使这种传输方案成为OFDM的一个非常有前途的替代方案。例如,采用256 QAM调制,在相同条件下,与OFDM相比,它具有6 dB的$E_{b}/N_{0}$增益。
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引用次数: 0
Implementation of Low Delay Dual Chamber Pacemaker Using Verilog 利用Verilog实现低延迟双室起搏器
Sonali Ray, Rohini Srivastava, R. P. Tewari, B. Kumar, Meenakshi Sharma, Nitin Sahai, D. Bhatia
This paper presents a hardware implementation of Dual Chamber Cardiac Pacemaker for different ranges of heart beats with minimum delay. Proposed research work attempts to design and implement a low delay dual chamber demand pacemaker. Pacemakers are used for life-threatening disease such as arrhythmia. A minimum delay between sensing and pacing is very crucial for maintaining the adequate heart rate. Therefore the main motive of this work is to reduce the delay between sensing and pacing of the pacemaker. The demand pacemaker works in accordance with the heart rate of the patient who is suffering from arrhythmia and its range may be different for different patients. The range from 30 beats per minute (bpm) to 70 beats per minute (bpm) has been taken for the proposed work. The tool used for the proposed low delay dual chamber pacemaker is Xilinx 14.7. The result shows that the proposed work is better in terms of delay, computational complexity, and cost.
本文提出了一种双腔心脏起搏器的硬件实现方法,可实现不同心跳范围的最小延迟。提出的研究工作试图设计和实现一个低延迟双腔需求起搏器。起搏器用于治疗心律失常等危及生命的疾病。感应和起搏之间的最小延迟对于维持适当的心率至关重要。因此,这项工作的主要目的是减少起搏器感知和起搏之间的延迟。需求式起搏器根据心律失常患者的心率工作,其范围可能因患者不同而不同。建议的工作范围为每分钟30次到每分钟70次。所建议的低延迟双室起搏器使用的工具是Xilinx 14.7。结果表明,该方法在延迟、计算复杂度和成本方面都有较好的效果。
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引用次数: 5
期刊
2019 6th International Conference on Signal Processing and Integrated Networks (SPIN)
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