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2017 Seminar on Detection Systems Architectures and Technologies (DAT)最新文献

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Real time software based L1 C/A GPS receiver 基于L1 C/A GPS接收机的实时软件
2017 Seminar on Detection Systems Architectures and Technologies (DAT) Pub Date : 1900-01-01 DOI: 10.1109/DAT.2017.7889184
B. Beldjilali, B. Benadda
{"title":"Real time software based L1 C/A GPS receiver","authors":"B. Beldjilali, B. Benadda","doi":"10.1109/DAT.2017.7889184","DOIUrl":"https://doi.org/10.1109/DAT.2017.7889184","url":null,"abstract":"This paper gives a detailed description of a software based L1 C/A GPS receiver, the described receiver based only on software, combine several algorithms used to process incoming signals from GPS satellites, the measurement chain has multiple blocks, signals acquisition to detect the visible satellites, satellite tracking to handle the frequency shift due to the Doppler Effect, corrected signals demodulation, information extraction and reading to achieve precise visible satellites positions calculation, the distinct satellite positions are used to find the receiver position based on triangulation technique, the developed algorithms used to build our software receiver are based on advanced signal processing methods, as Circular correlation through Fast Fourier Transform, Delay lock loop DLL and Phase lock loop PLL.","PeriodicalId":371206,"journal":{"name":"2017 Seminar on Detection Systems Architectures and Technologies (DAT)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128989571","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
Automatic target detection in heterogeneous and spatially correlated Lognormal clutter 异构和空间相关对数正态杂波中的自动目标检测
2017 Seminar on Detection Systems Architectures and Technologies (DAT) Pub Date : 1900-01-01 DOI: 10.1109/DAT.2017.7889167
Souad Chabbi, T. Laroussi
{"title":"Automatic target detection in heterogeneous and spatially correlated Lognormal clutter","authors":"Souad Chabbi, T. Laroussi","doi":"10.1109/DAT.2017.7889167","DOIUrl":"https://doi.org/10.1109/DAT.2017.7889167","url":null,"abstract":"In this paper, we address the problem of target detection in a spatially correlated Lognormal clutter when no prior information is available about the presence or not of any clutter edge and/or interferences in the reference window. We propose a detector based on censoring and detection algorithms with constant false censoring and alarm rates (CFCAR). The CFCAR property is guaranteed by use of linear bi-parametric adaptive thresholds based on the best linear unbiased estimators (BLUEs) of the Normal parameters obtained via a logarithmic transformation. The censoring algorithm starts up the heterogeneity test from the two most left ranked cells and proceeds forwardly. The detection algorithm uses the set of reference cells supposed homogeneous to estimate the unknown background level. Monte Carlo simulations show that the proposed detector and its corresponding fixed-point(s) censoring BLU-CFAR detector perform equally well.","PeriodicalId":371206,"journal":{"name":"2017 Seminar on Detection Systems Architectures and Technologies (DAT)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124119184","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
Performance study of Nakagami-m fading channel in LTE system LTE系统中Nakagami-m衰落信道性能研究
2017 Seminar on Detection Systems Architectures and Technologies (DAT) Pub Date : 1900-01-01 DOI: 10.1109/DAT.2017.7889186
N. Smaili, M. Djeddou, K. Ghanem
{"title":"Performance study of Nakagami-m fading channel in LTE system","authors":"N. Smaili, M. Djeddou, K. Ghanem","doi":"10.1109/DAT.2017.7889186","DOIUrl":"https://doi.org/10.1109/DAT.2017.7889186","url":null,"abstract":"LTE which stands for Long Term Evolution is now an agreed-upon protocol that aims at supporting various high data rate applications particularly encompassing current and multimedia features. It relies on the merging of OFDMA and MIMO abilities for affording high rates in frequency selective channels (ISI), thus efficiently combating inter-symbol interference. The performance of this protocol has been studied for various channels, however, no study reports such an issue for Nakagami channel. In this paper, the BLER performance and the achievable throughput are evaluated in Nakagami-m fading channel with 3 different transmission modes, namely, SISO, transmit diversity and open loop spatial multiplexing (OLSM). The OFDM channel is estimated using the least square approach and the very recently proposed K Best-Soft Sphere Decoder (KBSSD) is adopted at the receiver side. Also, the impact of the number of retransmissions on the BLER performance is reported herein.","PeriodicalId":371206,"journal":{"name":"2017 Seminar on Detection Systems Architectures and Technologies (DAT)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129293280","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
Deep Learning for target recognition from SAR images 基于深度学习的SAR图像目标识别
2017 Seminar on Detection Systems Architectures and Technologies (DAT) Pub Date : 1900-01-01 DOI: 10.1109/DAT.2017.7889171
Ali El Housseini, A. Toumi, A. Khenchaf
{"title":"Deep Learning for target recognition from SAR images","authors":"Ali El Housseini, A. Toumi, A. Khenchaf","doi":"10.1109/DAT.2017.7889171","DOIUrl":"https://doi.org/10.1109/DAT.2017.7889171","url":null,"abstract":"This paper deals with the problematic of automatic target recognition (ATR) using Synthetic Aperture Radar (SAR) images. In this work, the Deep Learning (DL) architecture is proposed and applied in order to recognize military vehicles from SAR images. We propose mainly in this work the deep learning algorithms based on convolutional neural network architecture. In the second step and in order to optimize the convolution of DL steps, we propose to use a convolutional auto-encoder which may be better suited to image processing. Its use provides several areas of the best results in the presence of noise on shifted and truncated images. To validate our approach, some experimentation results are given and compared. The obtained results show that the proposed approach of DL achieves a height recognition accuracy of 93%.","PeriodicalId":371206,"journal":{"name":"2017 Seminar on Detection Systems Architectures and Technologies (DAT)","volume":"210 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116237281","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: 38
A snapshot security protocol for radar network protection 用于雷达网络保护的快照安全协议
2017 Seminar on Detection Systems Architectures and Technologies (DAT) Pub Date : 1900-01-01 DOI: 10.1109/DAT.2017.7889194
Houssem Mansouri, A. Pathan, M. Aliouat
{"title":"A snapshot security protocol for radar network protection","authors":"Houssem Mansouri, A. Pathan, M. Aliouat","doi":"10.1109/DAT.2017.7889194","DOIUrl":"https://doi.org/10.1109/DAT.2017.7889194","url":null,"abstract":"Snapshot based rollback recovery is one of the widely used techniques for applications such as scientific computing, database, telecommunication and critical mission applications. The goal of this paper is to design and implement a snapshot security protocol, which calculates consistent global snapshot for distributed applications running on radar networks in order to add more reliability and high availability to these systems. Our protocol is non-blocking in nature and avoids unnecessary computation. We use the dependability concept to minimize the amount of information (that passes through the network) for asking only minimum number of processes to take snapshot. Moreover, the number of control messages is independent of the increase in the number of processes in the system. The size of control messages is also small.","PeriodicalId":371206,"journal":{"name":"2017 Seminar on Detection Systems Architectures and Technologies (DAT)","volume":"518 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116244804","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
A compact MIMO antenna for WLAN and RADAR applications 用于WLAN和RADAR应用的紧凑型MIMO天线
2017 Seminar on Detection Systems Architectures and Technologies (DAT) Pub Date : 1900-01-01 DOI: 10.1109/DAT.2017.7889157
Massinissa Belazzoug, I. Messaoudene, Salih Aidel, Youcef Braham Chaouche, Farouk Chetouah, B. Hammache
{"title":"A compact MIMO antenna for WLAN and RADAR applications","authors":"Massinissa Belazzoug, I. Messaoudene, Salih Aidel, Youcef Braham Chaouche, Farouk Chetouah, B. Hammache","doi":"10.1109/DAT.2017.7889157","DOIUrl":"https://doi.org/10.1109/DAT.2017.7889157","url":null,"abstract":"This paper comprise a novel multiple input multiple output (MIMO) antenna with very compact size of 16×10 mm2. The proposed MIMO antenna contains two opposite facing half cylindrical dielectric resonator antenna (HCDRA) elements excited from two Sub-Miniature version A (SMA) connectors with a characteristic impedance of 50 ohm. The position of coaxial probe is optimized for the first time to enhance the impedance bandwidth. This antenna covers the spectrum from 5.7 GHz to 8.7 GHz, with mutual coupling lower than −8.5 dB. Moreover, the performances of the designed MIMO antenna are presented in terms of scattering parameters, gain, radiation patterns and efficiency.","PeriodicalId":371206,"journal":{"name":"2017 Seminar on Detection Systems Architectures and Technologies (DAT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130602689","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
Intra and inter policy Conflicts Dynamic Detection Algorithm 策略内冲突和策略间冲突动态检测算法
2017 Seminar on Detection Systems Architectures and Technologies (DAT) Pub Date : 1900-01-01 DOI: 10.1109/DAT.2017.7889181
Roumaissa Khelf, Nassira Ghoualmi
{"title":"Intra and inter policy Conflicts Dynamic Detection Algorithm","authors":"Roumaissa Khelf, Nassira Ghoualmi","doi":"10.1109/DAT.2017.7889181","DOIUrl":"https://doi.org/10.1109/DAT.2017.7889181","url":null,"abstract":"IPsec (Internet Protocol security) is a set of mechanisms proposed to secure IP network data communication. However IPsec functioning is not done properly except when the political security requirements are met. The security policy configuration is a complex and error-prone task, due to their complex semantics. In a dynamic environment, where the policy rules are frequently updated, the error rate is higher. Each network device policy should be analyzed carefully to prevent security policy conflicts. Different types of conflicts can be identified due to rule misconfiguration within a single IPsec device (intra-policy conflicts) or due to inconsistency between different IPsec policies (inter-policy conflicts). Policy conflicts can cause serious security infraction, which increase the network vulnerability. In this paper we propose an algorithm for dynamic detection of both intra and inter IPsec Security policy conflicts. The proposed algorithm is based on a simple and comprehensive mechanism that uses Boolean functions to classify and identify. The resolution of intra-policy conflict is also integrated into our algorithm.","PeriodicalId":371206,"journal":{"name":"2017 Seminar on Detection Systems Architectures and Technologies (DAT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129923771","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
Design and realization of a two way microstrip Wilkinson power splitter 双向微带威尔金森功率分配器的设计与实现
2017 Seminar on Detection Systems Architectures and Technologies (DAT) Pub Date : 1900-01-01 DOI: 10.1109/DAT.2017.7889149
Kamal Tourche, Hamza Bouhedjeur, Ali Abbadi, B. Magaz
{"title":"Design and realization of a two way microstrip Wilkinson power splitter","authors":"Kamal Tourche, Hamza Bouhedjeur, Ali Abbadi, B. Magaz","doi":"10.1109/DAT.2017.7889149","DOIUrl":"https://doi.org/10.1109/DAT.2017.7889149","url":null,"abstract":"This paper proposes an improved approach for the design and realization of a compact microstrip Wilkinson power divider in the UHF frequency band. The circuit is simulated using dimensions obtained from the Wilkinson power divider theory but realizations based on these dimensions presented a shift in the frequency band of operation. To account for this frequency shift in the design phase, an approach based on planar (2D) electromagnetic simulation is used to take into consideration more physical factors such as the circuit geometry in the design phase. The behavior of the implemented Wilkinson power divider using this approach is as desired and the frequency shift issue is solved.","PeriodicalId":371206,"journal":{"name":"2017 Seminar on Detection Systems Architectures and Technologies (DAT)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114183318","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
Improved channel estimation in mmWave communication system 毫米波通信系统中改进的信道估计
2017 Seminar on Detection Systems Architectures and Technologies (DAT) Pub Date : 1900-01-01 DOI: 10.1109/DAT.2017.7889193
Irched Chafaa, M. Djeddou
{"title":"Improved channel estimation in mmWave communication system","authors":"Irched Chafaa, M. Djeddou","doi":"10.1109/DAT.2017.7889193","DOIUrl":"https://doi.org/10.1109/DAT.2017.7889193","url":null,"abstract":"The key element of enabling millimeter wave communications is the adoption of a hybrid beamforming. This hybrid architecture requires the development of new algorithms to estimate the mmWave channel. The main goal of this work is jointly estimating the mmWave channel parameters: the angle of departure (AOD), the angle of arrival (AOA) and the path's gain using the sparsity of the mmWave channel in conjunction with a criterion test based on diagonality of data matrices. The results of the simulation, in terms of performance, show the superiority of the modified algorithm integrating the new criterion compared to the original one.","PeriodicalId":371206,"journal":{"name":"2017 Seminar on Detection Systems Architectures and Technologies (DAT)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121059731","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: 15
Patch antenna loaded with C-DNM for X-band applications 贴片天线加载C-DNM用于x波段应用
2017 Seminar on Detection Systems Architectures and Technologies (DAT) Pub Date : 1900-01-01 DOI: 10.1109/DAT.2017.7889164
A. Bendaoudi, Z. Mahdjoub
{"title":"Patch antenna loaded with C-DNM for X-band applications","authors":"A. Bendaoudi, Z. Mahdjoub","doi":"10.1109/DAT.2017.7889164","DOIUrl":"https://doi.org/10.1109/DAT.2017.7889164","url":null,"abstract":"This paper proposes patch antenna for X-band [8.2 GHz; 12.4 GHz] and military applications, enhanced by double negative metamaterial complementary (C-DNM) cells. Two different structures will be presented and discussed, which involve: (1) C-DNM with square patch antenna, and (2) C-DNM with circular patch antenna. The antenna was designed with resonance frequency around at 12 GHz. The metamaterial substrate has a potential to maintain the amplitude of the reflection coefficient at the specific resonant frequency as well as increase the directivity gain and/or the bandwidth. The focusing parameter is to achieve a better directivity gain and wide radiation pattern that obtained from a structure with several cells C-DNM for circular patch antenna. The simulations show that the addition of C-DNM to circular patch antenna provides better performance in terms of directivity 7.45dB to 7.88dB for circular patch. For square patch; the antenna is contributing the best reflection coefficient value than −40.36 dB and value of 7.74 of directivity gain.","PeriodicalId":371206,"journal":{"name":"2017 Seminar on Detection Systems Architectures and Technologies (DAT)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134479737","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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