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2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)最新文献

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SAR TDC architecture for one-shot timing measurement with full digital implementation SAR TDC架构的一次定时测量与全数字实现
2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2017-11-01 DOI: 10.1109/ISPACS.2017.8266523
Yuki Ozawa, Takashi Ida, Shotaro Sakurai, Richen Jiang, R. Takahashi, Haruo Kobayashi, Ryoji Shiota
{"title":"SAR TDC architecture for one-shot timing measurement with full digital implementation","authors":"Yuki Ozawa, Takashi Ida, Shotaro Sakurai, Richen Jiang, R. Takahashi, Haruo Kobayashi, Ryoji Shiota","doi":"10.1109/ISPACS.2017.8266523","DOIUrl":"https://doi.org/10.1109/ISPACS.2017.8266523","url":null,"abstract":"This paper proposes a successive approximation register (SAR) time-to-digital converter (TDC) architecture capable of measuring the timing difference between two single-shot signals with full digital FPGA. The SAR TDC is suitable for multi-channel timing built-out self-test (BOST) implementation on an FPGA chip. In order to reduce the number of buffers and DFFs in a conventional Flash TDC or Vernier TDC, the SAR architecture is applied. However, the SAR TDC can measure only the repetitive clock timing, and it cannot measure the single-shot timing signal. So first we employ trigger circuits in front of the SAR TDC to measure the single-shot timing, but the trigger circuits include some analog circuits so that its digital FPGA implementation is difficult. Then we propose here an SAR-TDC architecture that enables the single-shot timing using ring oscillators, which leads to its full digital FPGA implementation.","PeriodicalId":166414,"journal":{"name":"2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128819113","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}
引用次数: 6
Image coding in compressed sensing based on noise shaping 基于噪声整形的压缩感知图像编码
2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2017-11-01 DOI: 10.1109/ISPACS.2017.8266468
Li Li, J. Yao, N. Deng
{"title":"Image coding in compressed sensing based on noise shaping","authors":"Li Li, J. Yao, N. Deng","doi":"10.1109/ISPACS.2017.8266468","DOIUrl":"https://doi.org/10.1109/ISPACS.2017.8266468","url":null,"abstract":"In this paper, we propose a new image coding based on compressed sensing scheme, called image coding in compressed sensing based on noise shaping. The 2D discrete wavelet transform (DWT) is utilized for source images to produce wavelet coefficients, and then using noise shaping(NS) algorithm to sparse represent of wavelet coefficients. The low frequency coefficients store and transfer directly, as for high frequency coefficients is sampled random projection and transfer. Finally, at the receiver reconstitute image by orthogonal matching pursuit (OMP) algorithm for the high and low frequency information. Experimental result shows that the put forward method in our article can serve as a good solution for the efficient and improve the effect of the compressed sensing image coding.","PeriodicalId":166414,"journal":{"name":"2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115968218","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}
引用次数: 0
Image classification based on deep local feature coding 基于深度局部特征编码的图像分类
2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2017-11-01 DOI: 10.1109/ISPACS.2017.8266526
Qian Wang, Jianqing Zhu, Wei Shao, Lei Wang, Xiaobin Zhu
{"title":"Image classification based on deep local feature coding","authors":"Qian Wang, Jianqing Zhu, Wei Shao, Lei Wang, Xiaobin Zhu","doi":"10.1109/ISPACS.2017.8266526","DOIUrl":"https://doi.org/10.1109/ISPACS.2017.8266526","url":null,"abstract":"In this paper, we propose an improved locally aggregated descriptor (VLAD) algorithm coded on deep local features for image classification. Firstly, convolutional neural network (CNN) is adopted to extract the dense local features of images. Secondly, a subset of feature, chosen by the criterion of normal distribution, is selected for high quality codebook generation. Finally, the local features are assigned to multi-neighbor visual words instead of the nearest one with different weights, simultaneously, the statistical distribution information about local features is taken into account during VLAD coding process. Extensive experiments on public available datasets demonstrate the promising performance of the proposed method against state-of-the-art methods.","PeriodicalId":166414,"journal":{"name":"2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122918612","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}
引用次数: 0
Application of inductive filtering technology in industrial rectifier power system 感应滤波技术在工业整流电力系统中的应用
2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2017-11-01 DOI: 10.1109/ISPACS.2017.8266603
Shao Peng-fei, Chen Hao, Liao Yong
{"title":"Application of inductive filtering technology in industrial rectifier power system","authors":"Shao Peng-fei, Chen Hao, Liao Yong","doi":"10.1109/ISPACS.2017.8266603","DOIUrl":"https://doi.org/10.1109/ISPACS.2017.8266603","url":null,"abstract":"Application of inductive filtering technology in industrial rectifier power system is studied in this paper. Firstly, the single phase equivalent circuit of inductive filtering and its basic principle is introduced; then, the power circuit topological of primary equipment is proposed, which is designed for an industrial rectifier power system; finally, a detailed field-test is taken, and the test results indicate that the industrial rectifier power system that adopted inductive filtering technology not only can effectively suppress the harmonic of industrial custom power system, but also decreases the magnetic flux of rectifier transformer. Consequently, the additional harmonic loss of rectifier transformer is reduced significant which lead to the energy consumption reduction in system range.","PeriodicalId":166414,"journal":{"name":"2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"35 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120852706","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}
引用次数: 0
Short-range audio transfer through 3 Watt white LED on LoS channels 短距离音频传输通过3瓦白光LED在LoS通道
2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2017-11-01 DOI: 10.1109/ISPACS.2017.8266511
S. Fuada, T. Adiono
{"title":"Short-range audio transfer through 3 Watt white LED on LoS channels","authors":"S. Fuada, T. Adiono","doi":"10.1109/ISPACS.2017.8266511","DOIUrl":"https://doi.org/10.1109/ISPACS.2017.8266511","url":null,"abstract":"We have performed the short-range audio transfer system through a visible light as a medium using 3 Watt white phosphor LED, where the channel used is line-of-sight (LOS). The audio signal is coming from the PC and processed by analog front-end (AFE) transmitter which consists of the preamplifier, summing circuit, and buffer. The audio input signal amplitude can be adjusted manually by tuning the DC voltage level. In AFE receiver, TIA is used as a current to voltage converter. We used the summing amplifier circuit to set the signal DC level and positioning adjustment. The final block on the receiver circuit is a buffer and connected directly to the loudspeaker. The proposed AFE transceiver circuit has bandwidth around 300 kHz. In this paper, we also investigate the effect of a color filter using mica paper in free space between the transmitter and the receiver.","PeriodicalId":166414,"journal":{"name":"2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133567058","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}
引用次数: 6
Automatic design of the analog integrated circuit based on Equation-Based and Characterize results 基于方程和表征结果的模拟集成电路自动设计
2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2017-11-01 DOI: 10.1109/ISPACS.2017.8266562
Tsukasa Ishii, N. Takai, Masafumi Fukuda
{"title":"Automatic design of the analog integrated circuit based on Equation-Based and Characterize results","authors":"Tsukasa Ishii, N. Takai, Masafumi Fukuda","doi":"10.1109/ISPACS.2017.8266562","DOIUrl":"https://doi.org/10.1109/ISPACS.2017.8266562","url":null,"abstract":"The design in short time of analog integrated circuit is becoming difficult along with multi-functionalization of electronic appliances. Thus, the development period is getting longer and longer. However, the demand of society is circuit design in a short time and at low cost. For this reason, automatic design by the computer support is gathering attentions. In this paper, we propose automatic design based on Equation-Based and Characterize results. In the proposed method, all elements value are calculated by using Characterize results. In addition, the experience and knowledge of designer are also considered. Simulation results indicate that circuit design in short time is achieved.","PeriodicalId":166414,"journal":{"name":"2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131226339","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}
引用次数: 0
Fast PixelCNN: Based on network acceleration cache and partial generation network 快速PixelCNN:基于网络加速缓存和部分生成网络
2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2017-11-01 DOI: 10.1109/ISPACS.2017.8266448
Peizhen Guo, Xiaoran Ni, Xiaogang Chen, Xiangyang Ji
{"title":"Fast PixelCNN: Based on network acceleration cache and partial generation network","authors":"Peizhen Guo, Xiaoran Ni, Xiaogang Chen, Xiangyang Ji","doi":"10.1109/ISPACS.2017.8266448","DOIUrl":"https://doi.org/10.1109/ISPACS.2017.8266448","url":null,"abstract":"Single image super resolution is one of the most important topic in computer vision and image processing research, many convolutional neural networks (CNN) based super resolution algorithms were proposed and achieved advanced performance, especially in recovering image details, in which PixelCNN is the most representative one. However, due to the intensive computation requirement of PixelCNN model, running time remains a major challenge, which limited its wider application. In this paper, several modifications are proposed to improve PixelCNN based recursive super resolution model. First, a discrete logistic mixture likelihood is adopted, then a cache structure for generating process is proposed, with these modifications, numerous redundant computations are removed without loss of accuracy. Finally, a partial generating network is proposed for higher resolution generation. Experiments on CelebA dataset demonstrate the effectiveness the superiority of the proposed method.","PeriodicalId":166414,"journal":{"name":"2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128590915","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}
引用次数: 4
A secure localization algorithm based on reputation against wormhole attack in UWSNS 基于信誉的UWSNS抗虫洞攻击安全定位算法
2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2017-11-01 DOI: 10.1109/ISPACS.2017.8266566
Zhenyu Liu, Xiongfeng Deng, Jiajun Li
{"title":"A secure localization algorithm based on reputation against wormhole attack in UWSNS","authors":"Zhenyu Liu, Xiongfeng Deng, Jiajun Li","doi":"10.1109/ISPACS.2017.8266566","DOIUrl":"https://doi.org/10.1109/ISPACS.2017.8266566","url":null,"abstract":"On account of large and inconsistent propagation delays during transmission in Underwater Wireless Sensor Networks (UWSNs), wormholes bring more destructive than many attacks to localization applications. As a localization algorithm, DV-hop is classic but without secure scheme. A secure localization algorithm for UWSNs— RDV-HOP is brought out, which is based on reputation values and the constraints of propagation distance in UWSNs. In RDV-HOP, the anchor nodes evaluate the reputation of paths to other anchor nodes and broadcast these reputation values to the network. Unknown nodes select credible anchors nodes with high reputation to locate. We analyze the influence of the location accuracy with some parameters in the simulation experiments. The results show that the proposed algorithm can reduce the location error under the wormhole attack.","PeriodicalId":166414,"journal":{"name":"2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132140184","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}
引用次数: 3
Flexible pilot reuse in massive MIMO with random geometric distribution of users 具有随机用户几何分布的大规模MIMO中的灵活导频复用
2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2017-11-01 DOI: 10.1109/ISPACS.2017.8266587
Lu Lu, Hairong Wang, Youhua Fu
{"title":"Flexible pilot reuse in massive MIMO with random geometric distribution of users","authors":"Lu Lu, Hairong Wang, Youhua Fu","doi":"10.1109/ISPACS.2017.8266587","DOIUrl":"https://doi.org/10.1109/ISPACS.2017.8266587","url":null,"abstract":"The fundamental limit of massive multiple-input-multiple-output (MIMO) system's performance is pilot contamination due to the reuse of the same set of pilot sequences by users in adjacent cells, which can be alleviated by assign the pilot sequences to the users appropriately, power control and many other ways. In this paper, the network model considers stochastic geometry that users are distributed according to a homogeneous Poisson point process (PPP) to simulate the real user distribution. The signal-to-interference-plus-noise (SINR) of uplink can be analytically derived, and combined with the flexible pilot reuse to simulate the reality of the pilot allocation strategy. The users suffer from severe pilot contamination use orthogonal pilot and the others with light contamination can reuse a same set of pilot sequence, ultimately get the optimal pilot reusing factor and achieve a reasonable pilot allocation.","PeriodicalId":166414,"journal":{"name":"2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134253074","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}
引用次数: 0
A non-iterative blind image deblurring algorithm based on OTF estimation 一种基于OTF估计的非迭代盲图像去模糊算法
2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2017-11-01 DOI: 10.1109/ISPACS.2017.8266554
Weizhe Gao, Jianhua Zou, Xuebin Xu, Zhiguang Zhang
{"title":"A non-iterative blind image deblurring algorithm based on OTF estimation","authors":"Weizhe Gao, Jianhua Zou, Xuebin Xu, Zhiguang Zhang","doi":"10.1109/ISPACS.2017.8266554","DOIUrl":"https://doi.org/10.1109/ISPACS.2017.8266554","url":null,"abstract":"This paper proposes a non-iterative algorithm on blind image deblurring. This algorithm can restore the degraded images which are blurred by class G. This algorithm is based on that most images spectral amplitude have the similar power law distribution. In accordance with the power law distribution of natural image spectrum, a curve model is proposed to approximate the spectrum of the true image. The OTF(optical transfer function) is estimated by comparing the spectrum of the degraded image with the reconstructed one. Then, the image is restored by employing the estimated OTF and the Wiener filtering. The experiments show that this algorithm obtains a more accurate OTF, and this algorithm can reduce ringing artifacts as compared with some existing algorithms. The quality of the restored images has been enhanced significantly.","PeriodicalId":166414,"journal":{"name":"2017 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134578831","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}
引用次数: 2
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