CONTENTS of PROCEEDINGS

ELECTRONICS 2005

BOOK 1           ISBN    954 438 517 7

Circuits and Systems            

 

Stanoeva M., A. Popov, Asynchronous parallel resistorless ADC

3

Alexandru M., O. Croitoru, Performance evaluation and error analysis for an indoor location and tracking system

9

Craciun A.V., S. Moraru, L. Perniu, D. M. Kristaly, Theoretical and experimental analysis of the rectifier with capacitive filter

15

Kerkvliet H.M.M., G.C.M. Meijer, An improved electrode structure for capacitive single-axis tilt-sensor

21

Cermak J., Text-To-Speech system modification by soft computing methods

25

Vrana J., M. Filka, The lossless compression by polyphase filtering

31

Hovorak P., O. Wilfert, Free space optics - measurement of transmission quality link parameters

37

Spalevic P., S. Stanojcic, D. Martinovic, H.Popovic, The influence of the time – shifted interference influence on the bit error probability in a system with a nonlinear – dispersive optical fiber

42

Stefanova K.K., I.E. Petrov, B.H. Koen, Analysis of the accuracy of digital sinewave generator with step linear approximation

47

Stamenov D., I. M. Pandiev, L. Donevska, E. Gadjeva, Voltage controlled LC oscillator with current feedback amplifier

51

Pandiev I.M., Monolithic voltage-to-frequency converters macromodel development

58

Pandiev I.M., Design procedure and validation of a VFC macromodel

65

Asparuhova K.K., T.G. Grigorova, IGBT SPICE behavioral model using the Hammerstein configuration

71

Kukenska V.S., I.S. Simeonov, Modeling and analysis of an arithmetic-logic unit with integrated development environment WebPack

77

Simeonov I.S., Designing of a state machine with programmable logic

83

Simeonov I.S., V.S. Kukenska, R.T. Ilarionov, Realization of the final state machine with CPLD device

89

Chillev N.G., V.P. Tchoumatchenko, T.K. Vassileva, Event driven packet simulator

95

Stefanova S.A., One approach for discrete dynamical system modeling based on feed-forward neural network

101

Angelov P.A., Digital audio programmable time delay - audio effect

107

Anzova V.I., Low sensitivity design of multiplierless elliptic IIR digital filters

113

Yordanov S.Y., T.S. Todorov, Active quality control in real time on the parameters of technological process

120

Ribov B.Y., V. Ribova, Method for noise interference reduction in wireless radio data communications using the multi-carrier principle

126

Kireva D.P., C.A. Christov, A.I. Doseva, Safety modelling in mobile safety-related systems in railways

132

Tsenov A., Interconnection of multi-media service networks

138

Tsenov A., Management analysis for interconnection of multi-media service networks

144

Atanasov I.I., E. Pencheva, A new service logic processing language

150

Jordanova L.Т., D.M. Dobrev, Improvement of the HFC system reverse path performance

156

Mihov S.G., G.S. Zapryanov, Interpolation algorithms for image scaling

162

Tanchev I.T., Determine coefficient in working partition at new manner to simulation

168

Bojkov D.B., Universal graphical tool supporting the import and visualization of contour data

173

Hristova Y.H., S.I. Vassileva, Multimodel identification of biotechnological process

177

Chukanov K.G., V.B. Bochev, Calculating failure intensity by the failure flow parameter value

183

 

BOOK 2           ISBN   954 438 518 5

Education in Electronics,  Quantum and Nuclear Electronics

 

Sztojanov, I., I.F. Soran, Structure for a curriculum for 4 years bachelor degree in electronics engineering

3

Shoikova E.D., Pushing the integration of research programmes on mobile communications – EU project ALIPRO

9

Terzieva V., K. Todorova, About creating reusable learning objects in web-based learning environment

23

Perniu L., F. Sisak, D. Ungureanu, C. Bujdei, The use of forms to increase the quality of a conceptual data model

29

Ungureanu D., F. Sisak, Computational intelligence for decision support. Conceptual data and knowledge modeling

35

Ungureanu D., F. Sisak, D. M. Kristaly, S. Moraru, Simulation modeling. Input data collection and analysis

43

Moraru S., A. Pelcz, C. Bujdei, L. Perniu, Web-oriented applications of databases used in electrical domain

51

Radonov R.I., Platform for administration of the educational process

55

Videkov V.H., R.I. Radonov, S.D. Donchev, Some peculiarities of the resistor layout design in CAD Systems

60

Berka P., P. Hujka, Use of the network simulator ns-2 tool in lectures

65

Kostadinov A.N., D.M. Manova, Using VHDL – AMS in VLSI design laboratory exercises

71

Huczala M., Using digital signal processor in voice over IP communication

77

Stoyanov E.I., A. N. Iovev, Process control training system based on the MIK 4000C

83

Stoyanov E.I., A. N. Iovev, An automated tuning of the PID control loops, based on the Ziegler Nichols frequency response method, using POL* program sequences for MIK 4000C

87

Tokmakov D., N. Mileva, K. Stefanova, Distributed Iinternet - based performance - centered architecture for learning and development

91

Vasileva T.K., A.D. Kamburov, V.D. Vasileva, Blended learning in autotronic systems

97

Shoikova E., M. Ivanova, Learning design for effective blended learning delivery

103

Shoikova E., M. Ivanova, Learning design module in SCORM e-learning environment

109

Shoikova E., M. Ivanova, Service-oriented architecture to support learning design

115

Shoikova E., P. Kanchev, M. Ivanova, Implementation of SCORM – compliant digital learning object repository for e-learning purposes

121

Terzieva S.D., S.S. Vladov, V.M. Mladenov, Conception of the course project in the theoretical foundations of electrical engineering

127

Rahneva O.D., A.K. Rahnev, N.V. Pavlov, N.V. Valchanov, Authoring and automatic generation of circuitries and drafts in distributed e-testing cluster (DeTC)

133

Tzanov M.H., E.D. Manolov, F.T. Koparanov, Educational experiments with non-linear FPAA configurable analog modules

139

Koparanov F.T., M.H. Tzanov, H.M. Pashov, Practical experiments for training in interfacing sensors to Field Programmable Analog Array

145

Taneva L.R., Experiments with TIMER module of MSP430F149 (TI) for educational purposes

151

Kukenska V.S., Designing a web-based system for training portal administration

157

Stoyanova L.Y. Test results assessment and analysis for the information system of the Technology School "Electronic systems" associated with the Technical University of Sofia

162

Stoyanova L.Y., S. A. Stefanova, L. Z.Chorbadjiev, Information system of the Technology School "Electronic systems" associated with the Technical University of Sofia based on CMS

167

Gavrovski, C.V., Z.D. Kokolanski, Altera analysis of ionization measurement

173

Dimitrov L., I. Vankov, High voltage module for the photomultiplier power supply system of the CMS forward Hadron calorimeter

179

Deneva M.A., M.N. Nenchev, Development of original simple quantum electronic devices with emission passively frequency locked at atomic absorption line

186

Barton Z., R. Vrba, Gamma ray damage of unbiased CCD image sensors

194

Mitev M.G., L.T. Tsankov, Optimization of a RLC shaping circuit for NaI(Tl) scintillation detectors

199

Hristov H., I. Vankov, Photomultiplier high voltage power supply unit

205

Mladenov T.M., V.M. Mladenov, Interface module for Mossbauer spectral analysis

211

Deneva M.A., P.T. Todorova, M.N. Nenchev, Quantum electronics device for laser-intracavity registration of pollutants with increased sensitivity

217

 

 

 

BOOK3          ISBN 954 438 519 3

Electronic Systems in Measurement and Control

 

Wiedemann T., An universal, Linux-based controller with free configurable hardware systems

3

Mosin S.G., An approach to analogue circuits test based on application of neural network and wavelet decomposition

7

Sapunova S., S. Neychev, T. Ivanova, P. Kostov, I. Ilieva, Monitoring of plant growth environment in the SVET-3 space greenhouse: Measurements of plant shoot environment

13

Bujdei C., L. Perniu, I. Truican, M. Caraman, System of monitoring and control for the automation of industrial wash machines

19

Pelcz A., F. Sisak, S. Moraru, D. Ungureanu, Distributed software applications architecture for industrial control systems

25

Truican I., S. Dan, A. V. Craciun, D. Bucatos, Remote access and control for an industrial system

30

Croitoru O., M. Alexandru, Propagation effects in GPS accuracy. The precision improvement of positioning in real conditions of propagation

35

Yakimov P.I., A.T. Stanchev, N.T. Tuliev, S.Y. Ovcharov, Approaches for analog front end design in electric power system parameters measuring

40

Dzhelekarski P.I., D.S. Alexiev, Initializing communication to vehicle OBDII System

46

Dzhelekarski P.I., D.S. Alexiev, Reading and interpreting diagnostic data from vehicle OBDII System

53

Zhivkov I.T., D.S. Dimov, Y.T. Ostromski, V.K. Nakova, V.H. Denishev, Computer controlled quartz microbalance system for thin film vacuum deposition

60

Gugutkov P.M., T.S.Djamiykov, N.S. Dimitrov, Control circuit for auto-iris lenses used in digital video cameras

66

Gugutkov P.M., T.S. Djamiykov, H.D. Lukarski, Determination and suppression of noise from power supply circuits in digital cameras

71

Nikolov G.T., I.I. Stoyanov, B.M. Nikolova, Virtual universal counter

75

Nikolov G.T., B.M. Nikolova, M.B. Marinov, Data logging system for pressure monitoring

81

Markov L.K., Methods of decrease of the influence of vibrations and aspiration when defining the wheat parameters in industrial condition

87

Dimitrov E.N., G.M. Mitev, Extending the capabilities of AD694 transmitter in bridge connected sensor applications

93

Mihov G.S., S.D. Mollov, R.M. Ivanov, S.N. Jilov, Inspection equipment for supplied cases with empty bottles

98

Mollov S.D., S.G. Mihov, S.N. Jilov, Information system for bottle conveyers

104

Nenov N., T. Djamiykov, Visualization of the frames from CMOS image sensor on the monitor in real time

110

Stoyanov P.R., M.K. Mihov, G.K. Georgiev, V.G. Markov, Sattellite systems for space reconnaissance

116

Zhekov Z., Research of the background influence on the electro – optic transformers resolution

122

Zhekov Z., G. Mardirossian, Influence of the transmission processes upon the background brightness and relation between the dark and background scintillations of an electro – optic transformer

126

Maslinkov M.I., O.D. Rahneva, I. M. Maslinkov, Electronic system for synchronous Motion

132

Georgieva I., V.K. Gebov, Systems and methods applied in controlling the technological process at the fodder production

138

Valchev V.C., L.I. Bekyarov, E. N. Dimitrova, Measurement converter for averaging pulse modulated parameters and signals

144

Angelov P.A., Measurement and control of total harmonic distortion in frequency range 0,02 - 10kHz

150

Stanchev G.S., R.I. Arnaudov, R.G. Miletiev, Electric detonator measuring equipment

155

Kolev I.S., E.N. Petkova, Controllable photopotentiometric optocouplers

161

Kolev I.S., T.V. Karadzhov, Reliability of optoelectronic elements. Circuit solutions for its improvement

166

Popa-Nemoiu D., F. Sisak, Derived scada functions for hybrid control centers of nuclear power plants – an aplication for Cernavoda NPP

171

Marinov M.B., A. Huba, R. Ivanoff, System for online measurement of mechanical parameters

178

Marinov M. B., M.H. Hristov, I.P. Topalov, Determining Angle Position of an Object Using Accelerometers

184

Todorov D.G., N.I. Toncheva, Analog interface for transmitting the measured information on the basis of SMU technology

190

Karaskakovski I., G. Shutinovski, Comparison of sliding mode and proportional integral control for brushless DC motor

196

Dimcev V., C. Gavrovski, Automatic metering system for electricity

200

Lukarski H.D., A.S. Andonova, Development of imaging spectrometer using back illuminated CCD

206

Djamiykov T.S., M.B.Marinov, V.H. Videkov, Investigation of a flame’s dynamic parameters in 2 – 3 mm spectral range

212

 

BOOK4       ISBN  954 438 520 7

Electronic Medical Equipment, Embedded Systems, Power Electronics

 

Dotsinsky I.A., Suppression of AC railway power-line interference in ECG signals recorded by public access defibrillators

3

Iliev B.P., G.A.M. Pop, G.C.M. Meijer, In-vivo blood characterization system

9

Aguilar R.N., H. Kerkvliet, G.C.M. Meijer, A two-dimensional capacitive human-detection system

15

Iliev I.T., S.D. Tabakov, Implementation of class-D amplifier in high performance system for electro stimulation

21

Nenova B.D., I.T. Iliev, Experimental investigation of a current generator for bioimpedance-plethysmography

26

Neycheva T.D., D.P. Dobrev, Photoplethysmographic detector for peripheral pulse registration

31

Zvetanov D., V. Krasteva, I. Iliev, Application of bluetooth interface in system for kinesiological studies

37

Jekova I.I., Refibrillation: Rate of refibrillation and time between the defibrillation and the refibrillation

43

Krasteva V.T., I.I. Jekova, Spectral analysis of life-treatening cardiac arrhythmias

49

Matveev M., S. Naydenov, V. Krasteva, N. Mudrov, T. Stoyanov, Assesment of the infarct size from high-resolution ECG computer-based system

55

Hujka P., P. Berka, Colour segmentation

61

Caraman M., S. Dan, D. Bucatos, A.V. Craciun, Supervising the security of the modern informatics systems

67

Kristaly D.M., A.V. Craciun, A. Pelcz, I. Truican, MVC architecture in web applications development

73

Mashev I., N. Kakanakov, D. Grozev, B.Y. Ribov, V.B. Vasilev, Digital video broadcasting satellite receiver based on high performance single chip microprocessor

78

Petkov I., M. Oyamada, P. Amblard, A. Jerraya, M. Hristov, Hardware prototyping of ARM based system on chip

84

Karakehayov Z.G., Z.T. Monov, L.V. Karakehayova, ARCS: A simulator for distributed sensor networks

91

Kakanakov N.R., Experimental analysis of client/server applications in embedded systems

97

Ivanov I., A. Ivanov, V. Hristov, Specialized microcontroller system for street lighting control

103

Husan B.H., Embedded system of building management systems using microcomputer approach

108

Petrov B.B., P.Y. Atanasov, A.A. Petrova, Large capacity FIFO-organized SDRAM-based memory block

114

Spasov G., M. Shopov, I. Stankov, P. Zaikov, N. Hadzhinikolov, Development of a  system for “Home Control on Fingertips”

120

Spasov G., N. Hadzhinikolov, G. Petrova, Sub-master microcontroller for “Home Control on Fingertips

126

Kostadinov A.N., G.S. Mihov, Label inspection embedded system

132

Dilov K.D, H.D. Lukarski, Research and optimization of methods for computing of cross correlation functions for single-dimension and two-dimension signals

137

Dilov K.D., E.N. Dimitrov, Microprocessor system for determination indicator of the ease of motion for railway vehicles

141

Valchev V.C., Modeling losses in ferrite cores under square voltage waveforms

147

Alecu S.C., I.D. Slavulete, R. Amzolin, Power plant efficiency indicators monitoring systems

152

Popov E.I., L.I. Pindeva, E.H. Mileva, B.N. Tsankovski, A detailed study of the high order serial resonant inverter for induction heating

160

Georgiev P.V., D.P. Gospodinov, Study of the angle of dephasing between the vectors of the rotor and stator magnetic flow in a system of control through orientation of a magnetic field

166

Valchev V.C., T.A. Filchev, D.D. Yudov, D.A. Ivanov, Phase shift control and switching loss investigation of resonant DC-DC converter

172

Bankov N.D., T.G. Grigorova, Load characteristics under optimal trajectory control of series resonant DC/DC converters operating above resonant frequency

178

Grigorova T.G., N.D. Bankov, Modeling of the optimal trajectory control system of series resonant DC/DC converters operating above resonant frequency

184

Iliev T.I., V.T. Dimitrov, Modeling of heat processes in induction motor and determination of thermal life of stator winding insulation by MATHLAB 6.5

190

Iliev T.I., V.T. Dimitrov, Investigation of the induction motor bearing aging by means of computer simulation operating duty

196

Dimitrov D.I., N. Nikolov, T. Hristov, Measurements Controlling Interfering Signals in the Electric Power Supply Network

200

 

BOOK 5      ISBN 954 438 521 5

Microelectronics, Technologies in Electronics

 

Lantsov, V., Design of mixed signal circuits and systems for wireless applications

3

Heidary A., G. Wang, G.C.M. Meijer, Optimising the design of a switched-capacitor dynamic-element-matching amplifier

9

Nagy V., V. Stopjaková, P. Malošek, L. Majer, Accurate supply current testing of mixed-signal IC using auto-zero voltage comparator

15

Valcheva E.P., S.P., Alexandrova, S.K., Dimitrov, D.I., Manova, AlN thin films grown by reactive magnetron sputtering for microelectronics applications

21

Adamek M., J. Prasek, J. Sulc, P. Steffan, Some aspects of thick film electrochemical sensor fabrication

25

Videkov V.H., S. Andreev, N. Jordanov, S. Tzanova, R. Arnaudov, Lead free soldering on contact pads

32

Alexandrova S.P., E.P. Valcheva, R.G. Kobilarov, Nitrogen containing ultra thin SiO2 films on Si obtained by ion implantation

38

Alexandrova S.P., I. Maslyanitsyn, Optical properties of PECVD a-Si:H layers on glass substrate

44

Kamenova L.K., S.K. Andreev, Modeling capillary effects in electrochemical processes

50

Kuncheva A.S., T. Mougel, L. Fujcik, B. Donchev, M.H. Hristov, Design of a decimation filter for novel sigma-delta modulator

56

Pukneva D.I., The influence of layout on basic parameters of integrated passive devices

62

Angelov G.V., O.J. Antonova, E.D. Gadjeva, Parameter extraction methodology for a simplified RF NMOSFET equivalent circuit

68

Donchev B.R., A.S. Kuncheva, Reconfigurable architectures – the future of the digital design

75

Prasek J., M. Adamek, L. Fujcik, E. Sotter, E. Llobet, C. Bittencourt, A. Felten, J.-J. Pireaux, Carbon nanotubes based sensor for heavy metals detection

81

Khateb A., V. Musil, R. Prokop, Rail-to-rail bulk-driven amplifier

87

Prokop R., V. Musil, New modern circuit block CCTA and some its applications

93

Manolov E.D., B.P. Lyubenov, Design and investigation of two-parameter space classification circuits using FPAA

99

Majer L., M. Tomáška,V. Stopjaková, V. Nagy, P. Malošek, The basic building blocks of 1.8 GHz PLL in CMOS technology

105

Sevova J.S., G.V. Angelov, M.H. Hristov, Balanced mixers design for RF

111

Dimitrov D.P., T.K. Vasileva, Low-voltage operational amplifiers for mixed-signal applications

117

Arabadzhiev D., I. Avramov, A. Andonova, P. Philipov, SAW stabilized microwave generator elaboration

123

Dimitrov G., M.A. Abdulah, N. Goranova, Drift and Hall mobility of hole carriers in strained SiGe films grown on (001) Si substrates

129

Strijkova V.J., V.H. Denishev, I.A. Tsenov, E.M. Spassova, G.V. Danev, Ultra-thin organic layer stacks - a new vacuum deposition solution

135

Boiadjiev S.I., M.M.M. Rasovska, R.S. Iordanov, RF reactive sputtering of MoO3 thin films for sensor applications

141

Shindov P.H., M.I. Shindova, The effect of activation and recrystallization on the system CdS – CdO

146

Denishev K.H., A.T. Dimitrova, Micromechanical  chemical  sensor

150

Denishev K.H., V.L. Tabakov, Meander-line piezoelectric actuator

156

Denishev K.H., Krumova E.Z., Thermal microactuator

162

Gjosheva R.S., K.H. Denishev, Micromechanical temperature sensor

168

Pranchov R., M. Palabikjan, N. Serafimov, Mechanical properties investigations of Pb - free solder alloys

174