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Acquisition of E5 Galileo signals in Matlab 3

Acquisition of E5 Galileo signals in Matlab

3rd IAA-RACTs Conference on Scientific and Technological Experiments on Automatic Space Vehicles and Small Satellites (SPEXP)

作者： Stepanova, Ekaterina Kudryavtsev, Ilya Lohan, Elena Simona Samara State Aerosp Univ Moskovskoye Shosse 34 Samara 443086 Russia Tampere Univ Technol FI-33720 Tampere Finland

The deployment of Galileo constellation leads to the need of efficient algorithms for acquisition and tracking of Galileo signals. These signals are different from GPS signals and this difference should be taken into consideration in the program code. This paper deals with the acquisition of Galileo signals in Matlab. The code is developed on the basis of the free code developed by Kai Borre for GPS Software defined radio [1]. (C) 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.

关键词： acquisition AltBOC modulation autocorrelation function (ACF) Galileo signal Matlab navigational signal program code

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Power Consumption Analysis of Microprocessor Unit Based on Software Realization 20

Power Consumption Analysis of Microprocessor Unit Based on S...

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20th International Conference on System Controls and Computer Science 2015

作者： Mackowski, Michal Niezabitowski, Michal Silesian Tech Univ Fac Automat Control Elect & Comp Sci 16 Akad St PL-44101 Gliwice Poland

ISBN: (纸本)9781479917808

With the advent of portable and high density microelectronic devices, the minimization of power consumption in CMOS VLSI circuits is becoming a critical concern. An embedded system is a combination of electronic hardware and software and sometimes additional parts designed to perform a dedicated function. In many cases system (microprocessor) must monitor the amount of power it uses and take appropriate steps to save the battery life. There are several methods to save power consumption of microprocessor unit including: clock control, power-sensitive processors, low-voltage and circuit shutdown. The effect of reducing power consumption can be achieved either by hardware or software optimization. This paper presents the software level power consumption analysis of MCU, focusing mainly on instruction and data realization.

关键词： power consumption microprocessor unit program code microcontroller software realization instruction cycle electromagnetic disturbances

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Development and Application of Remote Laboratory for Embedded Systems Design

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INTERNATIONAL JOURNAL OF ONLINE ENGINEERING 2015年第3期11卷 27-31页

作者： Parkhomenko, Anzhelika Gladkova, Olga Ivanov, Eugene Sokolyanskii, Aleksandr Kurson, Sergey Zaporizhzhya Natl Tech Univ Software Tools Dept UA-69063 Zaporizhzhya Ukraine

This paper presents Embedded Systems' Hardware-Software codesign and is an overview of the approach based on using ready platforms. Comparable analysis of well-known platforms from different vendors is given. Application of remote laboratories of embedded system rapid prototyping is offered. Remote lab architecture, a set of experiments and Use-Case scenarios are described. The proposed approach improves the current state-of-the-art work in the area of embedded systems design to accelerate stages of hardware-software integration and testing.

关键词： Embedded systems' design Hardware and software platform Remote laboratory Web-interface Experiment set program code Control system of the mobile objects Support design decision

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Assessment of Line Overloading Risk for Transmission Networks

Assessment of Line Overloading Risk for Transmission Network...

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11th IET International Conference on AC and DC Power Transmission

作者： D. Alali H. Griffiths L. M. Cipcigan A. Haddad Cardiff University Cardiff South Glamorgan GB

ISBN: (纸本)9781510807167

Traditional approaches to transmission system security assessment use deterministic criteria e.g. the application of `N-1' or `N-2' circuit depletion under prescribed heavy system loading conditions. However, such worst-case deterministic approach does not provide explicitly an assessment of the probability of overloading the system, and the likelihood of the outages is treated equally. Recent research has focused on assessment of the line overloading risk index. This paper aims to extend the evaluation of the line overloading risk index through an extensive systematic evaluation of the steady state performance of the Dubai transmission network under hour-by-hour loading levels over a one year period. Load flow analysis is carried out for the intact system and all N-1 and N-2 contingencies. Over the same annual period, the thermal rating of all transmission lines is calculated, based on a detailed set of local meteorological data. Power flow computations are performed using a commercial load flow program and the systematic multiple study execution and data handling was achieved using a developed C++ based programming code. Over the period studied, the line overloading risk index and the probability distributions of line loadings and ratings is determined.

关键词： Line Overloading Risk Index Steady-state Probabilistic Reliability Thermal Rating Transmission system Uncertainties Transmission systems Overloads thermal rating transmission networks Uncertainty program code Probability distribution risk indicators Transmission Lines steady-state performance Line data processing meteorological data

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Antifungal efficiency assessment of the TiO₂ coating on facade paints

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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 2014年第19期21卷 11228-11237页

作者： Vucetic, Snezana B. Rudic, Ognjen Lj. Markov, Sinisa L. Bera, Oskar J. Vidakovic, Ana M. Skapin, Andrijana S. Sever Ranogajec, Jonjaua G. Univ Novi Sad Fac Technol Novi Sad 21000 Serbia Slovenian Natl Bldg & Civil Engn Inst Ljubljana 1000 Slovenia

The work studies the photocatalytic activity and the antifungal efficiency of the TiO2/Zn-Al coatings placed on the target commercial facade paints. The photocatalytic active nanocomposite based on TiO2 and Zn-Al-layered double hydroxides (ZnAl-LDHs) was synthesized by a wet impregnation technique with 3 % w/w TiO2. The freshly prepared suspension was applied by spray technique on the surfaces of the white facade paints. The goal of the work was to develop a method that quickly quantifies the antifungal activity of the commercial facade paints with and without biocidal components covered with a photocatalytic coating. The essence of the proposed method is the monitoring of the fungal growth (artificial ageing conditions) and the quantification of its development (UV-A 0.13 mWcm(-2)) on the facade paint surfaces. A special fungus nutrient (potato dextrose agar (PDA)) was inoculated with the spores of the Aspergillus niger ATCC 6275, and the test samples (facade paints with and without photocatalytic coating) were placed on the inoculated nutrient in the petri dishes. The images of the fungal growth on the samples of the facade paints, during a period of 5 days, were imported into Matlab R2012a where they were converted to binary images (BW), based on the adequate threshold. The percentage of the surface coverage was calculated by applying the specifically written program code which determines the ratio of the black and white pixels. The black pixels correspond to the surface covered with hyphae and mycelia of the fungus.

关键词： Antifungal efficiency Photocatalytic coating Coating durability Porous substrates Facade paints program code

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Applications methods of the objects, and suitability for universal applications in computer graphics context

Applications methods of the objects, and suitability for uni...

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37th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)

作者： Zeqiri, Nderim State Univ Tetova Fac Sci Appl Tetovo 1200 Macedonia

ISBN: (纸本)9789532330816

The use of the primitive objects, can be modified and adapted for universal applications in computer graphics context. The present paper addresses some access and research in the field of computer graphics. The program code present the basics step to increase the study and to explore differently level by describing each of them by math formulas and graphical representations. Also, here is explained the methods how we can use all these recourses to implement to any system, where can be find the better solution in the context of universal applications and solutions. So, to solve all from above questions, are given some characteristics objects and program code for respective representations. Also is given a direct approach for ADC (analog-digital conversion), by use the fundamental steps followed by this topics: sampling rate, quantization. Also is given statistical results by creating the respective images and respective view in the context of the statistical analyses.

关键词： Computer graphics motion adaptations program code generation ADC converter samples

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Quantitatively Exploring Non-code Software Artifacts 14

Quantitatively Exploring Non-code Software Artifacts

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14th Annual International Conference on Quality Software (QSIC)

作者： Bigliardi, Luca Lanza, Michele Bacchelli, Alberto D'Ambros, Marco Mocci, Andrea Univ Lugano Fac Informat Lugano Switzerland Delft Univ Technol NL-2600 AA Delft Netherlands

ISBN: (纸本)9781479971978

Most software engineering research focuses its analyses on source code, because correct, well designed, and efficient program code is the desired end output of software development. Nevertheless, source code is not the only constituent of software systems: programs also comprise other types of artifacts, such as documentation, build system and configuration files, and graphics. These non-code artifacts only recently got the attention of researchers and are not yet investigated as a whole, but separately and with very specific aims. By taking a quantitative perspective, we look into non-code software artifacts to measure their role in software systems. We analyze 35 mature open-source software systems and we address exploratory questions such as: How many non-code software artifacts do software systems contain? How do they relate to source code? How much effort is put into producing and maintaining them? Our results show that a significant portion of systems is made of non-code artifacts, and that programmers spend a relevant part of their effort on non-code artifacts during the development process. Our analysis opens questions for future investigations.

关键词： public domain software software engineering source code (software) system documentation build system configuration files documentation noncode artifacts noncode software artifacts open-source software systems program code software development software engineering research source code Correlation Java Kernel Linux Servers Software systems empirical study mining software repositories non-code artifacts Software systems Source code open source software program code computer software program and system documentation Software design Artifacts Software engineering Servers Linux Documentation Java Java programming language configuration file

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Finding dispatcher gadgets for jump oriented programming code reuse attacks

Finding dispatcher gadgets for jump oriented programming cod...

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8th IEEE International Symposium on Applied Computational Intelligence and Informatics (SACI)

作者： Erdodi, L. Obuda Univ Fac John von Neumann Budapest Hungary

ISBN: (纸本)9781467364003;9781467363976

One of the most dangerous forms of the memory manipulation based attacks is the code reuse based attack type. In this type of attack the malwares do not need to place own malicious code in the memory space, they use the already linked code to achieve the aim. The present study discusses a critical part of the jump oriented programming which is nowadays the most up-to-date memory manipulation attack type. The controlling element of the jump oriented attacks is the so-called dispatcher gadget which controls the creation of the malicious code from the available legitimate code patches. The use of the dispatcher gadgets has already been introduced on 32bit Linux systems but generally the search algorithm and the classification are still open questions. This study presents the dispatcher gadgets and their characteristics found in the basic dll files of the windows 32 bit system and in the 64 bit Linux libc files.

关键词： Software reuse Spyware gadgets Dispatchers jump memory space program code critical parts SEARCHING ALGORITHM Oriented

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The Concept of Software-Based Techniques of Increasing Immunity of Microprocessor Unit to Electromagnetic Disturbances

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20th International Conference on Computer Networks (CN)

作者： Kwiecien, Andrzej Mackowski, Michal Skoroniak, Krzysztof Silesian Tech Univ Inst Comp Sci PL-44100 Gliwice Poland

ISBN: (纸本)9783642388651

The essential feature of modern IT systems, related to a device reliability, is their immunity to electromagnetic disturbances. The paper deals with the software-based techniques used for detecting disturbances, which can appear during the microcontroller work. The use of presented techniques allows the system to response appropriately to the threat.

关键词： software prevention embedded software program code microcontroller EMC conducted emission electromagnetic disturbances electromagnetic interference measurements immunity

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Data Security in Microprocessor Units

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20th International Conference on Computer Networks (CN)

作者： Kwiecien, Andrzej Mackowski, Michal Sidzina, Marcin Silesian Tech Univ Inst Comp Sci Gliwice Poland Univ Bielsko Biala Dept Mech Engn Fundamentals Bielsko Biala Poland

ISBN: (纸本)9783642388651

Protection of computer systems from an unauthorized access to the classified information is a very essential issue. Security of IT systems can concern various aspects, such as software security, connected with ensuring its confidentiality, as well as preventing its modification. Thanks to the developed methods, it is possible to analyze the program code based on the disturbances of voltage supply, which occur during the execution of the program. Moreover, it also enables to recognize the numbers of bits changes on microcontroller data bus, as a result of realized instruction. In such context, it can constitute a potential threat for data processed by microcontroller program or embedded systems. The presented method is very similar to simple power analysis method, which is very effective in relation to cryptographic algorithms, whose execution in many cases depends on processed data. The results indicate that presented method is an effective and low-cost attack, due to its simplicity in many real applications. Moreover, the research results inspire to study carefully the ways and methodology for developing software and hardware, which should reduce the possibility of software reverse engineering.

关键词： reverse engineering data security program code microcontroller conducted emission electromagnetic disturbances electromagnetic interference simple power analysis

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