2018 22nd International Microwave and Radar Conference (MIKON)最新文献_第2页

Face re-identification in thermal infrared spectrum based on ThermalFaceNet neural network 基于ThermalFaceNet神经网络的热红外光谱人脸再识别

2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405170

A. Grudzien, M. Kowalski, N. Pałka

{"title":"Face re-identification in thermal infrared spectrum based on ThermalFaceNet neural network","authors":"A. Grudzien, M. Kowalski, N. Pałka","doi":"10.23919/MIKON.2018.8405170","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405170","url":null,"abstract":"Face recognition is widely explored research area which achieved high level of maturity. It attracts scientists to explore new possibilities and various spectral domains. Thermal infrared spectrum seems to be a promising modality which may complement visible domain systems. Face recognition process consists of several stages such as image acquisition, face detection, feature extraction and matching. Extraction of features is the one of most important stage that can be performed using various approaches, such as appearance-based methods, local descriptor methods or convolutional neural networks. Lately, convolutional neural networks (CNN) become very popular. CNN is a structure based on various filtering layers to reduce size, extract features and finally to classify the input data. This technique allows to efficiently process large datasets. Extracted features can be used to perform multiclass classification or identity verification. Verification which refers to comparing two samples is often performed using distance metrics. This paper presents thermal face verification method based on Siamese convolutional neural network. We introduce ThermalFaceNet architecture and compare performance with existing state-of-the-art CNN architectures.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125557239","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: 7

Advantages of non-uniform linear arrays based on COTS elements in passive radar applications 基于COTS单元的非均匀线性阵列在无源雷达中的应用优势

2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405177

J. Rosado-Sanz, N. Rey-Maestre, D. Mata-Moya, M. Jarabo-Amores, M. Rosa-Zurera, J. Bárcena-Humanes

{"title":"Advantages of non-uniform linear arrays based on COTS elements in passive radar applications","authors":"J. Rosado-Sanz, N. Rey-Maestre, D. Mata-Moya, M. Jarabo-Amores, M. Rosa-Zurera, J. Bárcena-Humanes","doi":"10.23919/MIKON.2018.8405177","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405177","url":null,"abstract":"One of the advantages associated to the use of passive radars is the lower development and maintenance costs with respect to active ones, mainly related to the absence of a dedicated transmitter and to the possibility of using COTS components. In this paper, a study of the advantages of using Non Uniform Linear Arrays (NULAs) for the design of the antenna system for a passive radar exploiting DVB-T signals is carried out, considering as a basic requirement the use of commercial antennas. Commercial solutions are not designed for being used as single radiating elements in array configurations, so directivity and physical sizes are not the most desirable for array design. In Spain, the use of horizontal polarization includes additional constraints to inter-element distances, and usually gives rise to grating lobes. NULAs designed using optimization techniques for maximizing directivity and controlling side lobes levels are analyzed and compared to Uniform Linear ones (ULAs), proving the better performance of the NULA based spatial filtering. For a selected commercial antenna, performances of NULAs and ULAs are compared as a function of the number of elements, showing a better improvement as the number of elements increases. For completing the study, the single radiating element is redesigned for reducing the physical size maintaining the radiation properties, although the cost associated to this new design is clearly higher than the first one. Results show that NULAs with smaller elements give a better performance in terms of Side Lobe Level (SLL).","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115275083","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

TDOA estimation using a pair of synchronized DW1000 based anchor nodes 使用一对同步的基于DW1000的锚节点进行TDOA估计

2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405288

V. Djaja-Josko, J. Kołakowski, J. Modelski

引用次数: 8

Deconvolution-based spatial resolution improvement technique for resistivity scans acquired with split-post dielectric resonator 分柱介质谐振器电阻率扫描的反卷积空间分辨率改进技术

2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405279

P. Korpas

引用次数: 5

Satellites detection, tracking and cataloguing system 卫星探测、跟踪和编目系统

2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405229

Jakub Kopyciński, P. Kukliński, W. Rzesa, Bartłomiej Majerski, Agnieszka Borucka, Kamil Choromański

{"title":"Satellites detection, tracking and cataloguing system","authors":"Jakub Kopyciński, P. Kukliński, W. Rzesa, Bartłomiej Majerski, Agnieszka Borucka, Kamil Choromański","doi":"10.23919/MIKON.2018.8405229","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405229","url":null,"abstract":"The growth in the amount of space debris in the Earth orbit demands more and more effort to establish space situational awareness (SSA) programmes. The solutions used by many countries, including France and the United States are complex as well as expensive. The aim of the project in question was to establish an affordable and simple radar-based surveillance system allowing to detect, track and catalogue objects in the outer space. The main elements used were: a Yagi antenna with proper equipment as a Doppler-shifted signal receiver, two programs for raw data analysis and orbit fitting as well as a database containing information about detected satellites. Basing on the frequency of signals emitted by the Graves radar, an object orbit estimation was made using a C++ program and then stored in a database. The phenomenon of relativistic Doppler effect was considered while analysing the data. The amplitude of signal gave the frequency as function of time. Next, a circular orbit approximation was found and saved to the database. On average 1176 satellite flights have been registered every week so far. The total cost of the system did not exceed €430, whereas the whole ESA's Space Situational Awareness Programme needs a budget of €95 million. It was possible to create a low-cost and uncomplicated part of a SSA system. The last and only functionality left is object identification by its cross section, which is planned to be developed in the near future.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"212 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122455844","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

Influence of ESPAR antenna radiation patterns shape on PPCC-based DoA estimation accuracy ESPAR天线辐射方向图形状对基于ppcc的DoA估计精度的影响

2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405327

M. Rzymowski, L. Kulas

引用次数: 7

Separation of GPS signals in FSR system FSR系统中GPS信号的分离

2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405176

H. Kabakchiev, V. Behar, I. Garvanov, D. Kabakchieva, K. Kabakchiev, H. Rohling, K. Kulpa, A. Yarovoy

引用次数: 0

Probability of detection for swerling model fluctuating targets with a square-law detector and different signal to noise ratios 不同信噪比下平方律检测器对摇摆模型波动目标的检测概率

2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405155

R. Kassab, T. Boutin, C. Adnet

引用次数: 1

Recognition of signals with time-varying spectrum using time-frequency transformation with non-uniform sampling 用非均匀采样的时频变换方法识别时变频谱信号

2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405158

E. Swiercz

{"title":"Recognition of signals with time-varying spectrum using time-frequency transformation with non-uniform sampling","authors":"E. Swiercz","doi":"10.23919/MIKON.2018.8405158","DOIUrl":"https://doi.org/10.23919/MIKON.2018.8405158","url":null,"abstract":"This paper presents the efficient algorithm for estimation of parameters of signals with a polynomial phase. The multilinear method with uniform sampling of an analyzed signal is replaced by the multilinear method with non-uniform sampling. By sampling the signal at none-equidistant time instants, the procedure lowers the nonlinearity of the estimator function and allows to get lower thresholds of SNR ratios. The time-frequency distribution with square root-based sampling within the kernel is presented. It is shown that a fourth-order kernel can be successively used for estimation of the fifth and fourth phase parameters of phase polynomial signals (PPS). The presented distribution can be implemented with Fast Fourier Transform (FFT), what decreases the computational load. In this paper the linear interpolation is proposed for computation of the square root-based sampling kernel instead of the formula known in literature. Using the additional cubic phase (CP) function allows estimation of remaining parameters in an efficient manner. The presented algorithm requires only one-dimensional optimization in every step of computation. This approach substantially outperforms known multilinear functions for estimation of parameters of a phase polynomial.","PeriodicalId":143491,"journal":{"name":"2018 22nd International Microwave and Radar Conference (MIKON)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117329186","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

Advances in compact integrated multichannel millimeter wave radar systems using SiGe BiCMOS technology (Focused session on highly-integrated millimeter-wave radar sensors in SiGe BiCMOS technologies) 采用SiGe BiCMOS技术的紧凑型集成多通道毫米波雷达系统的进展(重点讨论SiGe BiCMOS技术中高度集成的毫米波雷达传感器)

2018 22nd International Microwave and Radar Conference (MIKON) Pub Date : 2018-05-14 DOI: 10.23919/MIKON.2018.8405217

S. Kueppers, R. Herschel, N. Pohl

引用次数: 7