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2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013)最新文献

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Decentralized Software Upgrading in remote network based on Embedded Linux 基于嵌入式Linux的远程网络分散软件升级
2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013) Pub Date : 2013-11-14 DOI: 10.1109/ICSPCC.2013.6664022
Pakorn Lopattanakij, J. Kudtongngam, Nathavuth Kitbutrawat
{"title":"Decentralized Software Upgrading in remote network based on Embedded Linux","authors":"Pakorn Lopattanakij, J. Kudtongngam, Nathavuth Kitbutrawat","doi":"10.1109/ICSPCC.2013.6664022","DOIUrl":"https://doi.org/10.1109/ICSPCC.2013.6664022","url":null,"abstract":"Embedded devices used in remote network have schedules to transmit analytical data from sensing devices over long distance with long range communication such as General Packet Radio Service (GPRS) with client-server communication. Besides, the existing Master Slave upgrade firmware method requires each connection time for reprogramming. After device installation, firmware reprogramming and reconfiguration for all embedded devices in remote network are difficult. The more number of devices (N) are installed, the more effort is needed for reprogramming and reconfiguring. In this paper, a novel decentralized firmware upgrade method is proposed without using client-server concept. The proposed method is able to distribute programs or configurations from the embedded device that has been last reprogrammed. The results show that the new firmware upgrade can dramatically save upgrading time in a network with high N.","PeriodicalId":124509,"journal":{"name":"2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013)","volume":"384 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129137672","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
Cloud storage of massive remote sensing data based on distributed file system 基于分布式文件系统的海量遥感数据云存储
2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013) Pub Date : 2013-11-14 DOI: 10.1109/ICSPCC.2013.6663922
Ziwen Chi, Feng Zhang, Zhenhong Du, Ren-yi Liu
{"title":"Cloud storage of massive remote sensing data based on distributed file system","authors":"Ziwen Chi, Feng Zhang, Zhenhong Du, Ren-yi Liu","doi":"10.1109/ICSPCC.2013.6663922","DOIUrl":"https://doi.org/10.1109/ICSPCC.2013.6663922","url":null,"abstract":"Cloud storage is an effective means to solve the storage and management challenges of the growing mass remote sensing data products. In order to settle the problems existing in the application of cloud storage for remote sensing data, a distributed storage module based on image blocks organization was put forward, and the inefficient problem of distributed file system in massive image blocks storage was solved. In the combination of the module and HDFS, the efficient distributed storage and retrieval of image data were implemented, and the ability of spatial data access of the remote sensing data cloud storage was enabled. As built upon distributed file system, the storage system has a good scalability to meet the requirements of data growing. The experiment and analysis showed that the storage system could maintain a high throughput and stability under multiple concurrent connections.","PeriodicalId":124509,"journal":{"name":"2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132615679","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: 5
High speed motion compensation based on the range profile 基于距离轮廓的高速运动补偿
2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013) Pub Date : 2013-11-14 DOI: 10.1109/ICSPCC.2013.6663956
Chenyu He, Zhou Daiying
{"title":"High speed motion compensation based on the range profile","authors":"Chenyu He, Zhou Daiying","doi":"10.1109/ICSPCC.2013.6663956","DOIUrl":"https://doi.org/10.1109/ICSPCC.2013.6663956","url":null,"abstract":"The velocity of the ballistic target in midcourse is very high. For wideband LFM signal and ultra-high speed moving target, the signal will have high-order term in its phase after de-chirp processing, which has a bad influence on the target range profile imaging quality. This paper establishes the model of echo for ultra-high speed target, and analyzes the effect of the target's high speed on the range profile. High speed motion will make range profile broadening. In order to solve this problem, it proposes a motion compensation method. The method estimates the chirp rate via combines Wigner Ville Distribution (WVD) and Hough Transform (HT), and then make compensation for the motion. The method has good aggregation, low signal-to-noise ratio requirements and high estimation accuracy. Simulations show that this method reduces the influence of high speed on the range profile efficiently.","PeriodicalId":124509,"journal":{"name":"2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130667964","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: 5
Identification of radio transmitters fingerprint based on curve fitting 基于曲线拟合的无线电发射机指纹识别
2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013) Pub Date : 2013-11-14 DOI: 10.1109/ICSPCC.2013.6664129
Lianfeng Huang, Xiongpeng Wu, Caidan Zhao, Minghui Gao
{"title":"Identification of radio transmitters fingerprint based on curve fitting","authors":"Lianfeng Huang, Xiongpeng Wu, Caidan Zhao, Minghui Gao","doi":"10.1109/ICSPCC.2013.6664129","DOIUrl":"https://doi.org/10.1109/ICSPCC.2013.6664129","url":null,"abstract":"Recently, radio individual identification draws the attention of related research institutions because of its great significance in various fields. In this paper, transient envelope feature is applied to the identification of radio transmitters. A novel approach is proposed to extract the transient envelope feature of radio transmitters based on fitting. According to the characteristics of the radio signal, the transient envelope obtained from the signal by complex analytical wavelet transform, is fitted by Gaussian function and sinusoidal function. The fitting coefficients regarded as feature vector are used for individual identification. The results of data analysis indicate that both Gaussian fitting and sinusoidal fitting have a good recognition performance of identifying different radio transmitters.","PeriodicalId":124509,"journal":{"name":"2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116811627","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: 8
Enhanced hierarchical intra mode decision for H.264/AVC 增强H.264/AVC的分层模式内决策
2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013) Pub Date : 2013-11-14 DOI: 10.1109/ICSPCC.2013.6664126
Hao Zhang, Fengfeng Tan, Zhan Ma
{"title":"Enhanced hierarchical intra mode decision for H.264/AVC","authors":"Hao Zhang, Fengfeng Tan, Zhan Ma","doi":"10.1109/ICSPCC.2013.6664126","DOIUrl":"https://doi.org/10.1109/ICSPCC.2013.6664126","url":null,"abstract":"Fast intra mode decision algorithms in H.264/AVC reduce the encoder computational complexity significantly by eliminating some unlikely prediction modes. However, the encoder speedup typically comes with the sacrifice of the quality loss while such degradation is not negligible in many scenarios. To maintain the encoder speedup enabled by the fast intra mode decision without noticeable quality degradation, a method that estimates the reliability of these fast algorithms based on the rate-distortion (R-D) cost ranking is proposed in this paper. By adding few most probable modes conditionally, the proposed method could improve the video quality greatly compared with the most recent hierarchical intra mode decision (HIMD) scheme in the H.264/AVC, where the B-jontegaard Delta Rate (BD-Rate) loss of the enhanced HIMD decreases from 3.04% to 1.16% on average with just 4.47% increase in encoding time, compared with the default HIMD, both against the full rate-distortion optimization solution.","PeriodicalId":124509,"journal":{"name":"2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131390653","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: 1
Uniform quantization of LDPC codes for 8PSK modulation 用于8PSK调制的LDPC码的均匀量化
2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013) Pub Date : 2013-11-14 DOI: 10.1109/ICSPCC.2013.6663960
Chen Zhengkang, Zhang Huisheng, L. Lixin, Zhuo Meng
{"title":"Uniform quantization of LDPC codes for 8PSK modulation","authors":"Chen Zhengkang, Zhang Huisheng, L. Lixin, Zhuo Meng","doi":"10.1109/ICSPCC.2013.6663960","DOIUrl":"https://doi.org/10.1109/ICSPCC.2013.6663960","url":null,"abstract":"It's common to use high-precision floating-point operations on theoretical study of the Low Density Parity Check (LDPC) codes, but it is difficult to implement it in practical application. Therefore, there is a great need to design effective quantitative method which enables us to implement it in hardware easily. In this paper, the min-sum decoding algorithm of LDPC codes for 8PSK modulation is studied in detail, and the method of the uniform quantization is analyzed and deduced. With this method to quantify the initial message, the variable messages and check messages are converted into integers after each iteration. Then the min-sum decoding algorithm based on integer arithmetic for 8PSK modulation is implemented. Simulation results demonstrate that the performance of the min-sum decoding algorithm with the uniform quantization is close to that of the high-precision floating-point sum-product decoding algorithm. Meanwhile, all the variables in the algorithm are fixed-length integers, so it is convenient for hardware implementation.","PeriodicalId":124509,"journal":{"name":"2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134172007","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 sparse prior in aperture synthesis radiometric imaging of extended radiation source 稀疏先验在扩展辐射源孔径合成辐射成像中的应用
2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013) Pub Date : 2013-11-14 DOI: 10.1109/ICSPCC.2013.6663985
He Fang-min, Wang Qian, Xiao Huan, Li Yi, Tang Jian, Meng Jin
{"title":"Application of sparse prior in aperture synthesis radiometric imaging of extended radiation source","authors":"He Fang-min, Wang Qian, Xiao Huan, Li Yi, Tang Jian, Meng Jin","doi":"10.1109/ICSPCC.2013.6663985","DOIUrl":"https://doi.org/10.1109/ICSPCC.2013.6663985","url":null,"abstract":"Aimed at the extended source of earth thermal radiation scene, the sparse prior is extracted from the transform domain, and used in the statistical inversion approach (SIA) to deal with the inverse problem in aperture synthesis radiometric imaging of the extended source. As the transform basis, Laplace basis, Fourier basis and Daubechies wavelet basis are proposed to explore the implicit sparse prior about the extended source. For the SIA, the image inversion of aperture synthesis radiometers is recast as the statistical inference about the hyperparameters based the sparse prior in the transform domain, which can be automatically derived from an expectation maximization (EM) algorithm. The simulations show that the proposed SIA can improve the radiometric accuracy of the reconstructed image by introducing the sparse prior as compared to the traditional deterministic inversion approaches.","PeriodicalId":124509,"journal":{"name":"2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134235341","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
An effective scheme for PAPR reduction of OFDM signal using time-varying subcarrier 一种利用时变子载波降低OFDM信号PAPR的有效方案
2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013) Pub Date : 2013-11-14 DOI: 10.1109/ICSPCC.2013.6663952
Shao Kai, G. Zhigang, Zhuang Ling, Wang Guangyu
{"title":"An effective scheme for PAPR reduction of OFDM signal using time-varying subcarrier","authors":"Shao Kai, G. Zhigang, Zhuang Ling, Wang Guangyu","doi":"10.1109/ICSPCC.2013.6663952","DOIUrl":"https://doi.org/10.1109/ICSPCC.2013.6663952","url":null,"abstract":"One of the challenges of Orthogonal Frequency Division Multiplexing (OFDM) is its high Peak-To-Average Power Ratio (PAPR) which may lead to system performance degradation due to low power efficiency in the presence of nonlinear power amplification. All existed PAPR reduction methods in the literature such as clipping, phase shift and compand transform are based on the conventional OFDM scheme, which means that the modulation system usually has a fixed symbol block length or fixed subcarrier number. In this paper we introduce a new concept, namely time-varying symbol block length or time-varying subcarrier number, into the OFDM system to reduce the PAPR values. We call the new modulation system Time-varying OFDM (TV-OFDM). Here, the PAPR is used as a criterion to adjust the symbol block length or subcarrier number accordingly. The algorithm for finding out the symbol block length or subcarrier number is present, and the comparison results with other classical PAPR reduction methods in the literature are given by numerous experiment. The simulation results show that the time-varying modulation schemes can clearly reduce the PAPR values of the OFDM system, while the Symbol Error Rate (SER) of time-invariant OFDM and TV-OFDM modulation remains almost constant.","PeriodicalId":124509,"journal":{"name":"2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134647686","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
Joint time-domain correlation and code-aided carrier synchronization algorithm 联合时域相关和编码辅助载波同步算法
2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013) Pub Date : 2013-11-14 DOI: 10.1109/ICSPCC.2013.6663921
Jinhua Sun, Xuemei Wang, Xiaojun Wu
{"title":"Joint time-domain correlation and code-aided carrier synchronization algorithm","authors":"Jinhua Sun, Xuemei Wang, Xiaojun Wu","doi":"10.1109/ICSPCC.2013.6663921","DOIUrl":"https://doi.org/10.1109/ICSPCC.2013.6663921","url":null,"abstract":"Considering low estimation accuracy and small synchronization range of carrier synchronization algorithms in low signal-to-noise ratio (SNR) for short burst communication systems, a joint time-domain correlation and code-aided carrier synchronization algorithm is proposed. Firstly, a frame structure in which the pilot symbols are separated with data symbols is used. Then, a new frequency estimation method using the summation of the entire cross correlation is deduced based on the time-domain correlation frequency estimation criterion. Based on this, the summation of the cross correlation of the pilot symbols after removing modulation is utilized to perform coarse synchronization and of the pilot symbols and decoding soft information is utilized to perform fine synchronization. So a joint time-domain correlation and code-aided carrier synchronization algorithm is obtained. Simulations by the Turbo code verify that the proposed algorithm can obtain higher estimation accuracy with only 32 QPSK pilot symbols, and the SNR degradation of Turbo decoder is within 0.5dB when the normalized frequency offset is smaller than 1.5×10-3.","PeriodicalId":124509,"journal":{"name":"2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134030352","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
Study of the control system for an unmanned surface vehicle 无人水面航行器控制系统研究
2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013) Pub Date : 2013-11-14 DOI: 10.1109/ICSPCC.2013.6664089
Wei Li, Yiping Li, Xisheng Feng
{"title":"Study of the control system for an unmanned surface vehicle","authors":"Wei Li, Yiping Li, Xisheng Feng","doi":"10.1109/ICSPCC.2013.6664089","DOIUrl":"https://doi.org/10.1109/ICSPCC.2013.6664089","url":null,"abstract":"A control system architecture is designed for an unmanned surface vehicle. The composing and function of the modules of the control system architecture are detailed. A module for the mixing control mode, which alters between manual control and auto control, is implemented based on real-time communication to make the vehicle be steered directly by users with its autonomous capacity retained. Trials on the sea are carried out to validate that this architecture could fulfill the basic functional requirements for travel.","PeriodicalId":124509,"journal":{"name":"2013 IEEE International Conference on Signal Processing, Communication and Computing (ICSPCC 2013)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133125382","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
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