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2016 New Trends in Signal Processing (NTSP)最新文献

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Differential phase detector for precise phase alignment 差分相位检测器，用于精确相位校准
2016 New Trends in Signal Processing (NTSP) Pub Date : 2016-10-01 DOI: 10.1109/NTSP.2016.7747789
J. Olexa, M. Gasior, O. Ondrácek
{"title":"Differential phase detector for precise phase alignment","authors":"J. Olexa, M. Gasior, O. Ondrácek","doi":"10.1109/NTSP.2016.7747789","DOIUrl":"https://doi.org/10.1109/NTSP.2016.7747789","url":null,"abstract":"This paper presents a differential phase detector circuit, whose phase-to-voltage characteristic has an extremum when its two input signals are exactly in phase. In this condition all its digital signals are of 50% duty cycle so that the circuit characteristic does not have a dead zone. This feature allows a precise indication of the zero-phase condition, which is independent of the detector power supply and the offset of its ADC readout. Such a detector is used for a phase alignment of two reference clock signals with frequency about 11 kHz in front-ends processing signals from beam position monitors of the Large Hadron Collider (LHC) at CERN. The detector output voltage is digitized with a 24-bit ADC at the rate of the reference signals. The resulting samples are processed in the front-end FPGA and transmitted to the control system using an Ethernet data stream. After a detailed description of the differential phase detector its performance is demonstrated with laboratory measurements. The results show that this simple circuit allows a phase alignment resolution of the 11.2 kHz clock signals in the order of 0.0001° with a measurement bandwidth of 1 Hz.","PeriodicalId":232837,"journal":{"name":"2016 New Trends in Signal Processing (NTSP)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121984185","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
Time-domain model for simulating turbulence effects on terrestrial FSO systems 模拟湍流对地面无线通信系统影响的时域模型
2016 New Trends in Signal Processing (NTSP) Pub Date : 2016-10-01 DOI: 10.1109/NTSP.2016.7747784
Z. Kolka, V. Biolková, O. Wilfert, D. Biolek
{"title":"Time-domain model for simulating turbulence effects on terrestrial FSO systems","authors":"Z. Kolka, V. Biolková, O. Wilfert, D. Biolek","doi":"10.1109/NTSP.2016.7747784","DOIUrl":"https://doi.org/10.1109/NTSP.2016.7747784","url":null,"abstract":"The paper deals with a time-domain model for generating random time series of received optical power and angle-of-arrival for the simulation of terrestrial Free-Space Optical systems under the influence of atmospheric turbulence. Based on the closed-form turbulence theory the time series are generated by means of suitable filtering of generated random numbers. The simulator of received optical power may serve in Monte-Carlo simulations of complex communication protocols and their interference with short-time fades due to atmospheric turbulence. The simulator of random angle-of-arrival can be used, for example, to test the performance of tracking systems and simulate additional loss due to short-time increases of the detector coupling error.","PeriodicalId":232837,"journal":{"name":"2016 New Trends in Signal Processing (NTSP)","volume":"29 11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124895139","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
Analysis of human radar echo signal using warped discrete fourier transform 利用弯曲离散傅里叶变换分析人体雷达回波信号
2016 New Trends in Signal Processing (NTSP) Pub Date : 2016-10-01 DOI: 10.1109/NTSP.2016.7747778
Dimitrije Bujaković, M. Andric, D. Mikluc, Boban Bondznulic
{"title":"Analysis of human radar echo signal using warped discrete fourier transform","authors":"Dimitrije Bujaković, M. Andric, D. Mikluc, Boban Bondznulic","doi":"10.1109/NTSP.2016.7747778","DOIUrl":"https://doi.org/10.1109/NTSP.2016.7747778","url":null,"abstract":"Use of the warped discrete Fourier transform for the time-frequency analysis of the signal on the audio-output of pulse-Doppler radar is examined in this research. The discrete Fourier transform is calculated in points in z-plane that are equidistantly distributed on the unit circle, while the warped discrete Fourier transform is calculated in points that are unevenly distributed on the unit circle. The time-dependent warped discrete Fourier transform for the analysis of the simulated and measured radar signals from a walking human was applied in this research. The results of the time-frequency analysis of radar signals using this transformation are compared with the spectrogram. The results show that the application of the warped discrete Fourier transformation in the radar signal analysis provides a higher concentration of energy around the central Doppler frequency comparing to the spectrogram.","PeriodicalId":232837,"journal":{"name":"2016 New Trends in Signal Processing (NTSP)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122668365","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
Influence of periodical interference on calibration process of vector magnetometer 周期干扰对矢量磁强计标定过程的影响
2016 New Trends in Signal Processing (NTSP) Pub Date : 2016-10-01 DOI: 10.1109/NTSP.2016.7747783
T. Kliment, M. Krchňák, Ž. Miženková, P. Lipovský
{"title":"Influence of periodical interference on calibration process of vector magnetometer","authors":"T. Kliment, M. Krchňák, Ž. Miženková, P. Lipovský","doi":"10.1109/NTSP.2016.7747783","DOIUrl":"https://doi.org/10.1109/NTSP.2016.7747783","url":null,"abstract":"The aim of the article is to demonstrate that calibration of 3D vector magnetometers using neural networks is possible even in the conditions with external interferences, eliminating the requirement to choose environment. In addition, the selected calibration method is position-independent and therefore no positioning devices are necessary. Given the dominant systematic errors of the selected HMC 5883L sensor an inverse model that takes into account the multiplicative, additive and orthogonality was elected. Calibration was performed initially in the laboratory without additional interference. Next, calibration took place in the environment with additional periodic harmonic disturbance and the results were compared.","PeriodicalId":232837,"journal":{"name":"2016 New Trends in Signal Processing (NTSP)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126300069","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
The theoretical base for localization of electromagnetic sources 电磁源定位的理论基础
2016 New Trends in Signal Processing (NTSP) Pub Date : 2016-10-01 DOI: 10.1109/NTSP.2016.7747788
F. Nebus, S. Gazovová
{"title":"The theoretical base for localization of electromagnetic sources","authors":"F. Nebus, S. Gazovová","doi":"10.1109/NTSP.2016.7747788","DOIUrl":"https://doi.org/10.1109/NTSP.2016.7747788","url":null,"abstract":"A presented paper deals with a theoretical base of the localization of electromagnetic sources. There are presented a mathematical model of localization of electromagnetic sources in near-field region and the mathematical model in far-field region. The localization in far-field region is introduced by covariance matrix and the localization in near-field region is introduced by cross-correlation matrix. These concepts are very similar in a mathematical apparatus, but the whole fundamental is completely different. There is shown a model of printed circuit board (PCB) with distributed fully coherent source at 1050 MHz for next work with mathematical model in near-field region.","PeriodicalId":232837,"journal":{"name":"2016 New Trends in Signal Processing (NTSP)","volume":"395 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131644702","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
Text processing by using projective ART neural networks 基于投影ART神经网络的文本处理
2016 New Trends in Signal Processing (NTSP) Pub Date : 2016-10-01 DOI: 10.1109/NTSP.2016.7747780
R. Forgác, R. Krakovsky
{"title":"Text processing by using projective ART neural networks","authors":"R. Forgác, R. Krakovsky","doi":"10.1109/NTSP.2016.7747780","DOIUrl":"https://doi.org/10.1109/NTSP.2016.7747780","url":null,"abstract":"This paper presents the summary of experience obtained with the modified clustering algorithm of Projective Adaptive Resonance Theory. The algorithm was proposed by authors, and was tested for text processing. Possible usage of the algorithm is exemplified by text document clustering, and generation of keyword dictionaries from text documents.","PeriodicalId":232837,"journal":{"name":"2016 New Trends in Signal Processing (NTSP)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116965811","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
Interference in combat radio networks of mobile communication systems 移动通信系统战斗无线电网络中的干扰
2016 New Trends in Signal Processing (NTSP) Pub Date : 2016-10-01 DOI: 10.1109/NTSP.2016.7747775
Vladimír Belák, M. Marko
{"title":"Interference in combat radio networks of mobile communication systems","authors":"Vladimír Belák, M. Marko","doi":"10.1109/NTSP.2016.7747775","DOIUrl":"https://doi.org/10.1109/NTSP.2016.7747775","url":null,"abstract":"In the paper, the process of analytical solving of mutual interference between the same radio stations with a pseudo-random change of main frequency (frequency hopping) is described. These radio stations are subsystems of a mobile communication system and they operate over the common group of frequencies in certain part of frequency band. The queueing theory was used for the solution of the problem with applying the simplified assumptions. The probabilities of the interference within the time interval t, the mean value of the interference amount, the density of interference per time unit, and the probability of appearance more than exact amount of interferences per the constant time of relation are derived.","PeriodicalId":232837,"journal":{"name":"2016 New Trends in Signal Processing (NTSP)","volume":"36 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114135888","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
Signal processing from sensors in a probabilistic model for recognition — IFF 基于概率模型的传感器信号处理识别- IFF
2016 New Trends in Signal Processing (NTSP) Pub Date : 2016-10-01 DOI: 10.1109/NTSP.2016.7747785
Radoslav Masnica, J. Stulrajter
{"title":"Signal processing from sensors in a probabilistic model for recognition — IFF","authors":"Radoslav Masnica, J. Stulrajter","doi":"10.1109/NTSP.2016.7747785","DOIUrl":"https://doi.org/10.1109/NTSP.2016.7747785","url":null,"abstract":"Processing of information from the sensors and the resources available to the commander are very important for his decision-making process. Quality of information for decision-making process has a great importance. This article focuses on the description of the properties of the probabilistic model for processing of sensor signals using the probabilistic model of recognition Custom / Foreign Identification Friendly or Foe (IFF) and access to the current intelligence picture of the commander in the common operational picture (COP) for C4I2 systems. This article describes the relationship between the impact of factors which influence signal processing and their impact on the results of the fight in network enabled environment. This view defines a comprehensive approach to processing of signals from the sensors and the ability to use full access to information, to use of common communication and information environment within systems supporting command and control in the environment Network Enabled Capabilities (NEC) for describing the relative information domination.","PeriodicalId":232837,"journal":{"name":"2016 New Trends in Signal Processing (NTSP)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134506499","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
Hash function generation by neural network 用神经网络生成哈希函数
2016 New Trends in Signal Processing (NTSP) Pub Date : 2016-10-01 DOI: 10.1109/NTSP.2016.7747793
M. Turčaník, Martin Javurek
{"title":"Hash function generation by neural network","authors":"M. Turčaník, Martin Javurek","doi":"10.1109/NTSP.2016.7747793","DOIUrl":"https://doi.org/10.1109/NTSP.2016.7747793","url":null,"abstract":"Effective generation of hash function is very important for an achievement of a security of today networks. A cryptographic hash function is a transformation that takes an input and returns a fixed-size value, which is called the hash value. An artificial neural network (ANN), as a possible approach, could be used for the hash function generation. The performance of the ANN was validated by software implementation of ANN for given network configuration. The principles of artificial neural networks and the possibility of using artificial neural network for hashing are presented in the article. For analysis of ANN were created testing sets on the base of several examples of general texts in English and in Slovak language. In the paper were tested ANNs with one hidden layer. The number of neurons in the hidden layer of the artificial neural network is optimized based on the results in the simulation.","PeriodicalId":232837,"journal":{"name":"2016 New Trends in Signal Processing (NTSP)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130682372","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
Wireless solutions for outdoor training polygons 户外训练多边形的无线解决方案
2016 New Trends in Signal Processing (NTSP) Pub Date : 2016-10-01 DOI: 10.1109/NTSP.2016.7747791
Juraj Tomlain, O. Teren, J. Tomlain
{"title":"Wireless solutions for outdoor training polygons","authors":"Juraj Tomlain, O. Teren, J. Tomlain","doi":"10.1109/NTSP.2016.7747791","DOIUrl":"https://doi.org/10.1109/NTSP.2016.7747791","url":null,"abstract":"The paper deals with the problematics of the distributed control units in the outdoor training polygons which are implemented with a wireless communication unit. The work is mainly focused on the multi-hop mesh capabilities of wireless communication modes. The theoretical part contains information about wire/wireless networks, a block diagram of the training-control unit and basic fundamentals. The suitable components and semiconductors are chosen and possibilities of ZigBee, WiFi, ISM (Industrial, Scientific and Medical) radio bands are described. A system evaluation, measured range distance and communication parameters follow the paper.","PeriodicalId":232837,"journal":{"name":"2016 New Trends in Signal Processing (NTSP)","volume":"23 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124490011","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
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