Pub Date : 2018-12-01DOI: 10.1109/ICCCAS.2018.8769208
Jaelin Lee, Younghyeon Park, B. Jeon
The texture information in the near-infrared (NIR) image is known to be effective in improving the visibility of visible-range image, thus, texture enhancement using NIR images has been investigated for the low contrast area. Since image contrast enhancement ultimately targets for human, many methods have been developed considering the Human Visual System (HVS)’s responses to luminance. In a low brightness region, the Just-Noticeable-Difference (JND), which statistically reflects sensitivity characteristics of human eye, is high, thus noise is relatively hard to notice. However, after the contrast enhancement, the noise is well recognized because the JND value decreases. In this paper, JND with respect to the background brightness is computed to properly address the characteristic of the image. We propose an image contrast enhancement method that adds texture components of NIR images to RGB image with using JND value obtained from RGB images as weights.
{"title":"Low Intensity RGB Texture Enhancement Based on Near Infrared Image Using Perceptual Information","authors":"Jaelin Lee, Younghyeon Park, B. Jeon","doi":"10.1109/ICCCAS.2018.8769208","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769208","url":null,"abstract":"The texture information in the near-infrared (NIR) image is known to be effective in improving the visibility of visible-range image, thus, texture enhancement using NIR images has been investigated for the low contrast area. Since image contrast enhancement ultimately targets for human, many methods have been developed considering the Human Visual System (HVS)’s responses to luminance. In a low brightness region, the Just-Noticeable-Difference (JND), which statistically reflects sensitivity characteristics of human eye, is high, thus noise is relatively hard to notice. However, after the contrast enhancement, the noise is well recognized because the JND value decreases. In this paper, JND with respect to the background brightness is computed to properly address the characteristic of the image. We propose an image contrast enhancement method that adds texture components of NIR images to RGB image with using JND value obtained from RGB images as weights.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122031619","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 : 2018-12-01DOI: 10.1109/ICCCAS.2018.8769326
Zhi-bin Xie, Yang Xu
This paper focuses on the low efficiency of wireless sensor network over-the-air node mirroring update, based on NXP's Jennic development platform, under the standard set by the ZigBee Alliance for Over the Air (OTA), the IEEE 802.15.4 CSMA/CA algorithm is improved. A multi-node synchronous, efficient and reliable remote update scheme for small-scale ZigBee networks was designed and verified on the Jennic JN5168 sensor node. Compared with the original remote update technology, the improved algorithm can increase the network throughput by 0.28, and the network delay is reduced from 0.029seconds to 0.024 seconds, which proves that the scheme is feasible in improving the update efficiency of nodes.
本文针对无线传感器网络空中节点镜像更新效率低的问题，基于恩智浦的Jennic开发平台，在ZigBee联盟制定的OTA (Over the Air)标准下，对IEEE 802.15.4 CSMA/CA算法进行了改进。设计了一种适用于小型ZigBee网络的多节点同步、高效、可靠的远程更新方案，并在Jennic JN5168传感器节点上进行了验证。与原有的远程更新技术相比，改进后的算法可使网络吞吐量提高0.28，网络延迟从0.029秒降低到0.024秒，证明该方案在提高节点更新效率方面是可行的。
{"title":"Research on OTA Optimization of Wireless Sensor Networks Based on CSMA/CA Improved Algorithm","authors":"Zhi-bin Xie, Yang Xu","doi":"10.1109/ICCCAS.2018.8769326","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769326","url":null,"abstract":"This paper focuses on the low efficiency of wireless sensor network over-the-air node mirroring update, based on NXP's Jennic development platform, under the standard set by the ZigBee Alliance for Over the Air (OTA), the IEEE 802.15.4 CSMA/CA algorithm is improved. A multi-node synchronous, efficient and reliable remote update scheme for small-scale ZigBee networks was designed and verified on the Jennic JN5168 sensor node. Compared with the original remote update technology, the improved algorithm can increase the network throughput by 0.28, and the network delay is reduced from 0.029seconds to 0.024 seconds, which proves that the scheme is feasible in improving the update efficiency of nodes.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122367791","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 : 2018-12-01DOI: 10.1109/ICCCAS.2018.8769224
Nan Hu, Tingting Chen
The issue of underdetermined direction-of-arrival (DOA) estimation, where the number of sensors is less than that of sources, for wideband sources by employing a nonuniformly spaced sensor array is addressed in this paper. The joint sparsity among multiple frequency bins and the nonnegativity of source variances are considered and hence a Bayesian hierarchical model is established, leading to a sparse Bayesian learning (SBL) method, which is realized by expectation-maximization (EM). Specifically, the ℓ2,1-norm of the source data at multiple frequency bins is involved in the proposed Bayesian model to enforce sparsity, which was not considered in any existing wideband DOA estimation methods involving SBL. It is shown that the proposed DOA estimation method achieves superior performance in low signal-to-noise ratio (SNR) or when the number of snapshots is small, via numerical simulations.
{"title":"Underdetermined Wideband Source Localization via Sparse Bayesian Learning modeling ℓ2,1-norm","authors":"Nan Hu, Tingting Chen","doi":"10.1109/ICCCAS.2018.8769224","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769224","url":null,"abstract":"The issue of underdetermined direction-of-arrival (DOA) estimation, where the number of sensors is less than that of sources, for wideband sources by employing a nonuniformly spaced sensor array is addressed in this paper. The joint sparsity among multiple frequency bins and the nonnegativity of source variances are considered and hence a Bayesian hierarchical model is established, leading to a sparse Bayesian learning (SBL) method, which is realized by expectation-maximization (EM). Specifically, the ℓ2,1-norm of the source data at multiple frequency bins is involved in the proposed Bayesian model to enforce sparsity, which was not considered in any existing wideband DOA estimation methods involving SBL. It is shown that the proposed DOA estimation method achieves superior performance in low signal-to-noise ratio (SNR) or when the number of snapshots is small, via numerical simulations.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125706988","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 : 2018-12-01DOI: 10.1109/ICCCAS.2018.8769254
Xiaodong Xie, Xiwen Zhang, Wei Li, Xue Fan
Previous studies about hot carrier effect on MOSFETs by stripe and annular gate design are contradictory. The reasons behind includes that only one parameter is used to characterize the hot carrier effect, technology nodes are different, and the ratio of channel width to length is not identical. We investigate the issue in terms of several parameters including threshold voltage VT, maximum transconductance Gmmax and saturation drain current IDsat. The NMOSFETs under test are fabricated on 65nm CMOS technology. Experiment results demonstrate that the total-ionizing-dose-hardened annular-gate NMOSFET can be characterized by its higher hot-carrier reliability on digital circuit speed performance than stripe-gate design.
{"title":"Hot Carrier Effect on NMOSFETs by Stripe and Annular Gate Design","authors":"Xiaodong Xie, Xiwen Zhang, Wei Li, Xue Fan","doi":"10.1109/ICCCAS.2018.8769254","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769254","url":null,"abstract":"Previous studies about hot carrier effect on MOSFETs by stripe and annular gate design are contradictory. The reasons behind includes that only one parameter is used to characterize the hot carrier effect, technology nodes are different, and the ratio of channel width to length is not identical. We investigate the issue in terms of several parameters including threshold voltage VT, maximum transconductance Gmmax and saturation drain current IDsat. The NMOSFETs under test are fabricated on 65nm CMOS technology. Experiment results demonstrate that the total-ionizing-dose-hardened annular-gate NMOSFET can be characterized by its higher hot-carrier reliability on digital circuit speed performance than stripe-gate design.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130123372","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}
With the increasing emphasis on the safety, fire disaster caused by the uncontrollable flame is still a major factor that seriously affects the public safety and social development. In order to reduce the probability of fire disasters, flame monitoring systems are indispensable. But traditional flame monitoring systems are limited by their transducers. Aiming at these shortcomings, the flame monitoring system based on machine-vision with the color processing and interframe difference method is presented in this paper. The flame monitoring system with our method has been implemented via the FPGA platform, and the experimental results indicate that the flame can be distinguished correctly from other objects and environments, the maximum normalized color characteristics of the flame can also be provided for the flame monitoring in the large space.
{"title":"The Design of the Flame Monitoring System Based on Machine-Vision with the Color Processing and Interframe Difference Method","authors":"Ziqi Cao, Daying Sun, Weiyi Huang, Zhiheng Wang, Yiqi Zhou, Wenhua Gu","doi":"10.1109/ICCCAS.2018.8768971","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8768971","url":null,"abstract":"With the increasing emphasis on the safety, fire disaster caused by the uncontrollable flame is still a major factor that seriously affects the public safety and social development. In order to reduce the probability of fire disasters, flame monitoring systems are indispensable. But traditional flame monitoring systems are limited by their transducers. Aiming at these shortcomings, the flame monitoring system based on machine-vision with the color processing and interframe difference method is presented in this paper. The flame monitoring system with our method has been implemented via the FPGA platform, and the experimental results indicate that the flame can be distinguished correctly from other objects and environments, the maximum normalized color characteristics of the flame can also be provided for the flame monitoring in the large space.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129696152","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 : 2018-12-01DOI: 10.1109/ICCCAS.2018.8768984
Jiang Teng, Bin Wang
A single-stage power amplifier(PA) operating in the 3.4~3.6GHz is designed in this paper, which is mainly used as a driver-stage PA for wireless transmitter. In the design process, the advanced designed system(ADS) of Agilent company is adopted, and the transistor of the PA is selected from Cree’s GaN transistor model CGH40010F. The simulation results show that the saturated output power exceeds 41 dBm, the PAE is greater than 65%, and the gain is around 17 dB when the output power is lower than 40dBm. The test results show that maximum PAE and output power are 55% and 40dBm, respectively. Compared with the traditional narrow band PA, the designed PA in the paper achieves relatively well bandwidth and efficiency.
{"title":"Design of a Driver-stage Power Amplifier for Wireless Transmitter","authors":"Jiang Teng, Bin Wang","doi":"10.1109/ICCCAS.2018.8768984","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8768984","url":null,"abstract":"A single-stage power amplifier(PA) operating in the 3.4~3.6GHz is designed in this paper, which is mainly used as a driver-stage PA for wireless transmitter. In the design process, the advanced designed system(ADS) of Agilent company is adopted, and the transistor of the PA is selected from Cree’s GaN transistor model CGH40010F. The simulation results show that the saturated output power exceeds 41 dBm, the PAE is greater than 65%, and the gain is around 17 dB when the output power is lower than 40dBm. The test results show that maximum PAE and output power are 55% and 40dBm, respectively. Compared with the traditional narrow band PA, the designed PA in the paper achieves relatively well bandwidth and efficiency.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115709947","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 : 2018-12-01DOI: 10.1109/icccas.2018.8769177
{"title":"ICCCAS 2018 Title Page","authors":"","doi":"10.1109/icccas.2018.8769177","DOIUrl":"https://doi.org/10.1109/icccas.2018.8769177","url":null,"abstract":"","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131587137","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 : 2018-12-01DOI: 10.1109/ICCCAS.2018.8769324
Tong Zhou, Lei Ding, Han Liu, Yun Xu, B. Jiang, Yan Su
This paper proposes a two-dimensional (2-D) scanning micromirror drive circuit with auto frequency scan function, which solves the problem of complication of manual calibration for the scanning mirror. It can realize the automatic frequency calibration and high-precision control for the two-dimensional scanning micro mirror, which is characterized by high scanning range and high intelligence. Proposed drive circuit has been validated by the experiment results, and the horizontal and vertical swing angles are greater than ±23.6 and ±5.7 degrees respectively when voltage is 5V, which achieves high-resolution position sensing and wide-angle horizontal scanning.
{"title":"Two-dimensional MEMS Scanning Mirror Driving Circuit with Auto Frequency Scan Function","authors":"Tong Zhou, Lei Ding, Han Liu, Yun Xu, B. Jiang, Yan Su","doi":"10.1109/ICCCAS.2018.8769324","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769324","url":null,"abstract":"This paper proposes a two-dimensional (2-D) scanning micromirror drive circuit with auto frequency scan function, which solves the problem of complication of manual calibration for the scanning mirror. It can realize the automatic frequency calibration and high-precision control for the two-dimensional scanning micro mirror, which is characterized by high scanning range and high intelligence. Proposed drive circuit has been validated by the experiment results, and the horizontal and vertical swing angles are greater than ±23.6 and ±5.7 degrees respectively when voltage is 5V, which achieves high-resolution position sensing and wide-angle horizontal scanning.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126576160","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 : 2018-12-01DOI: 10.1109/ICCCAS.2018.8769264
Alireza Mazinani, Q. Gao
Two way relay networks are generally used in OFDM wireless systems, where relay nodes pass the information from sources to destination nodes. High PAPR, BER and out-of-band distortion in relay nodes are three drawbacks in this network topology. In this paper a cross correlation block is located in the relay node to reduce the PAPR and BER value and suppress the out-of-band distortion in the relay output. Our simulation shows that the proposed method is superior to a new research article in terms of PAPR, BER and power spectral density as 1 dB, 1 dB and 6 dB, respectively.
{"title":"Spectrum Efficiency Increment for Two-Way Relay Networks Using Cross-Correlation Block","authors":"Alireza Mazinani, Q. Gao","doi":"10.1109/ICCCAS.2018.8769264","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769264","url":null,"abstract":"Two way relay networks are generally used in OFDM wireless systems, where relay nodes pass the information from sources to destination nodes. High PAPR, BER and out-of-band distortion in relay nodes are three drawbacks in this network topology. In this paper a cross correlation block is located in the relay node to reduce the PAPR and BER value and suppress the out-of-band distortion in the relay output. Our simulation shows that the proposed method is superior to a new research article in terms of PAPR, BER and power spectral density as 1 dB, 1 dB and 6 dB, respectively.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121893040","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 : 2018-12-01DOI: 10.1109/ICCCAS.2018.8769197
Z. Xiang, Wei Liu, L. Wang, Lan Lai Wang
This paper proposes an aging test system. Aging test is a general procedure in the phase of device design and manufacturing. The proposed aging test system is designed for Xilinx FPGA. It can test up to nigh FPGAs at the same time. The main advantages of our system over existing systems lie in its capabilities of capturing FPGA’s internal temperature and automatic monitoring the test results. The system achieves these capabilities by including a portable automatic test equipment we designed previously as a part. The power system of our system is also well designed when comparing with the existing systems. Our proposed system is currently placed in service and demonstrates the high reliability.
{"title":"A System for FPGA Aging Test","authors":"Z. Xiang, Wei Liu, L. Wang, Lan Lai Wang","doi":"10.1109/ICCCAS.2018.8769197","DOIUrl":"https://doi.org/10.1109/ICCCAS.2018.8769197","url":null,"abstract":"This paper proposes an aging test system. Aging test is a general procedure in the phase of device design and manufacturing. The proposed aging test system is designed for Xilinx FPGA. It can test up to nigh FPGAs at the same time. The main advantages of our system over existing systems lie in its capabilities of capturing FPGA’s internal temperature and automatic monitoring the test results. The system achieves these capabilities by including a portable automatic test equipment we designed previously as a part. The power system of our system is also well designed when comparing with the existing systems. Our proposed system is currently placed in service and demonstrates the high reliability.","PeriodicalId":166878,"journal":{"name":"2018 10th International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116937207","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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