CONTENTS of PROCEEDINGS

ELECTRONICS 2004

 

BOOK 1  -  ISBN 954-438-445-6

Levkov Ch., Georgy Mihov, Racho Ivanov, Ivan K. Daskalov Ivaylo Christov, Ivan Dotsinsky, Subtraction Method for Powerline Interference Removing from ECG

3

Chang Z., G.A.M. Pop, G.C.M. Meijer, A novel model of blood impedance for indirect viscosity measurement  

15

Kostov M., Cv. Mitrovski, On the denoising of nuclear medicine chest region images

22

Dimitrov L., I. Vankov, High voltage power supply system for CMS forward subdetector  

28

Mitev M., L. Tsankov, Ch. Lenev, Automatic station for continuous spectrometric monitoring of environmental radiation

32

Deneva M., L. Gacheva, M. Nenchev,  A simple new technique for laser spectrum locking at atomic absorption line

39

Deneva M., Pl. Todorova, M. Nenchev, A simple two-wavelength laser emitting in successive nanosecond pulses  

45

Mollov S., Developed environment for adjustment and diagnostics of SPV industrial controllers  

51

Mihov G., S. Mollov,  R.Ivanov, S. Jilov, Network driver for communication in SPV industrial network

57

Dimitrov E., K. Dilov, Multichannel analog data acquisition system 

63

Dilov K., H. Lukarski, E. Dimitrov, Image processing system with TI DSP TMS320VC5407  

69

Mladenov T., V. Mladenov, Microcontroller’s programmer  

74

Kolev I., T. Karadzhov, Microprocessor system for information processing with differential photodetectors  

80

Mudrov Ts., V. Krasteva, I. Jekova, Microcontroller-based ECG simulator prototype  

86

Jekova I., V. Krasteva, Ventricular fibrillation detection and optimal parameter SET selection by maens of discriminant analysis

92

Petrova G., Tester for metrological checking of ECG instruments  

98

Nedeva V., V. Bochev, Architecture of Web based information system for education eDU-TK

104

Nedeva V., Concept  of the structure of a University Web site  

109

Tabakov Sh., V. Ivancheva, D. Kalchev, Applications for analysis schemes in electronics’ education  

114

Radonov R., V. Videkov, A SMD course with web-based module

120

Mechkov C., Web-based building course on analog electronics (one teacher’s story)

125

Stefanova K., B. Koen-Kukova, V. Chincheva, Analysis of students readiness and motivation for computer-aided learning  

129

Rahneva O., Multilingual Graphical Authoring Editor in Distributed e-Testing Cluster – DeTC

134

Nedev S., D. Grigorova, Software training and demonstration module for operations control block realization and simulation  

140

Chillev N., T. Vassileva, Event-driven simulator for e-learning  

145

Vassileva T., Al. Kamburov, V. Vassileva, E-learning in digital electronics   

151

Tokmakov D., N. Mileva, S. Stoyanova, Internet-based performance support systems with educational elements–server and network (IPSS_EE Server&Network)  

157

Toshkov A., Increasing the quality of teaching of the students by a new method of design of optic fibres and analysis of their parameters  

162

Angelov Pl., Practice in the technical education as a leading factor for realization  

167

Deliiska B., N. Petrov, P.Manoilov, Web-based tutorial of computer networks and web design  

171

Neykova M., L. Taneva, About the problem – oriented approach in hardware and software engineering education  

175

Deneva M., M. Nenchev, Development and application of a new device for light control by light (optical transistor)  

181

Stoyanova L., St. Stefanova, Chorbadjiev L., Analysis of the web-based information system of the Technology School “Electronic Systems” and directions for it’s development  

186

Stoyanova L., Database structure of the web-based educational system of  Technology School “Electronic System”  

192

Stefanova St., L. Stoyanova, A. Frensky, Governmental educational requirements and curricula plans for the professional education and training in electronics and informational technologies  

198

Frensky A., Standardizanional base, institutions and perspectives in the professional education in ITC branch

204

 

BOOK 2 - ISBN 954-438-446-4

Sztojanov Is., S. Paşca, I. Soran, Education in digital electronics based on teamwork  

3

Perniu D., L. Perniu, A. Craciun, S. Moraru, A. Pelcz, Study of the learning units organization in eLearning systems

9

Moraru S., A. Pelcz, L. Perniu, A. Craciun, Architecture for industrial monitoring systems  

13

Pelcz A., F. Sisak, L. Perniu, A. Craciun, S. Moraru, Data aquisition software for industrial systems  

19

Savić M., M. Nikolić, M. Sokolović, P. Petković, Testing set-up for analog part of the power meter ic  

25

Jovanović B., M.Sokolović, M.Savić, M.Jevtić, P.Petković, Testing set-up for digital part of the power meter ic  

31

Kosev J., Vl. Sark, DSP microcontrolers are blurring the border between intelligent sensors and sophisticated instruments

37

Kerezov Al., R. Ivanov, Improving the measurement precision of SMT160-30 temperature sensor in 8-pin microcontroller design  

43

Nikolov G., B. Nikolova, Integrating design and simulation tools with LabVIEW tests  

48

Stanchev A., St. Ovcharov, N. Tuliev, System for monitoring and visualization of electrical power quality  

54

Ovcharov St., N. Tuliev, Stanchev A., Adapter module for ethernet network communication over TCP/IP  

60

Alexandrov T., St. Ovcharov,   N. Tuliev, P. Yakimov, E. Balkanska, About precise power meters as etalon in a power transducer  test systems

66

Marinov M., T. Djamiykov, I. Topalov, M. Dontscheva, Environmental Data Acquisition Based on 1-Wire Interface  

70

Marinov M., T. Djamiykov, I. Topalov, V. Zerbe, Remote machine condition monitoring based on wireless connectivity  

76

Dontschewa M., P. Roux, A. Künz, M. Marinov, G. Kempter, Experimental set-up for haptic investigation of real and virtual environments   

82

Dontschewa M., G. Kempter, A. Künz, M. Marinov, K.Weidmann, Using sensors from a motion capturing system for morphological movement examination and visualization control   

88

Spasov G., N. Kakanakov, Measurement of temperature and humidity using SHT11/71 intelligent sensor  

94

Stoyanov P., M. Mihov, G. Georgiev, Space Research Institute contribution to development of the air sovereignty operation center of Bulgaria  

100

Zhekov J., Methods for determining the amount of multi-electronic scintillations on the screen of electro-optic transformer of images  

106

Zhekov J., G. Mardirossian, St. Stoyanov, L. Kraleva, Energy efficiency of a system for primary processing of signals in an opto-electronic device operating under low-contrast conditions  

111

Gousheva M., Pl. Angelov, Pl.  Hristov, A method of measurement and control of the “V-A” curve optimal points of double spherical electrostatic probes. Laboratory simulation   

117

Ribov B., V.  Vasilev, Software State Machine Decoder for the Infrared Remote Control Units using bi-phase coding scheme  

122

Stoeva I., I. Kolev, Circuit for control of solid - state analogues of infrared vision devices  

128

Iliev T., Vl. Dimitrov, Electronic device for diagnostics of the residual resource of the electrical insulation of machinery and equipment   

134

Georgieva A., R. Georgiev, Numerical analysis of unshielded strip lines for microwave measurements  

140

Toshkov A., Pl. Angelov, Analysis on the influence of some constructive parameters on the value of the working capacity in cables of paper isolation  

146

Angelov Pl., An.Toshkov, Localization and measurement of the frequency of the critical non-periodical signal  

150

Gebov Vl., St. Ovcharov, High precision extrapolation method in dynamic dosing systems based on weight measuring principles

155

Krantov N., T. Djamiykov, St. Ovcharov, D. Alexiev, Implementing IrDA data communication using hardware description language

161

Djamiykov T., N. Nenov, M. Marinov, V. Zerbe, Real-time object’s center calculation  

166

Stefanov Sv., G. Kokerov, E. Ganev, I. Simeonov, Upon a method for processing statistics from exploitation of communication cables  

171

Djamiykov T., M. Tzanov, Method for compensating of error arised by photometrics measurement with Si – photodiode

175

Stefanova S.A., Time domain recursive digital filter modeling based on recurrent neural network training

181

Mardirossian G., T. Djamiykov, Optico-electronic part of digital registration equipment for geomagnetic field components  

186

Kokerov G., I. Ivanov, Arithmetic complexity estimation of a PN codes processing wavelet algorithm

204

Tabakov S., System of controllers based on Microchip PIC16F877    

197

Asparuhova K., E.Gadjeva, Advanced high accuracy behavioral spice macromodel of operational amplifier

201

 

BOOK 3 - ISBN 954-438-447-2

Aguilar R., M. Roelofsz, H. Kerkvliet, R. van de Ven, and G.C.M. Meijer, Low-cost capacitive personnel detector

3

Kerkvliet H.M.M., G. C. M. Meijer, Single-axis tilt sensor systems  

9

Binard C., Scalable embedded flash for mixed-signal ASICs  

15

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

21

Saramov E., A. Popov, Interfacing mixed signal peripherals by protocols of packet type

27

Nikolae G., M. Alexandru, Noise in TV chanel. Noise measuring at the TV receiver input

34

Craciun A.V., S.A.Moraru, A.Pelcz, L.Perniu, Computer based design of a low frequency power amplifier  

40

Stanoeva M., A.Popov, Current comparator based on shock-exited oscillator

46

Bojkov D., Flexible configuration models in industry applications  

52

Pandiev I., Multiplying Digital-to-Analog Converter Macromodels Development  

58

Pandiev I., Verification and Validation of Multiplying Digital-to-Analog Converter Macromodels  

64

Ivanova M., T.Todorov, Design of  ultrawideband amplifiers

71

Gadjeva E., R. Ilieva, Phase noise simulation using general-purpose circuit analysis programs  

76

Gadjeva E., I. Partenov, Behavioral spice models of lithium ion batteries in the charge stage

82

Garmev Z., E.Gadjeva, Pspice models of SC-circuits with periodical nonuniform individual sampling  

88

Furnadzhiev I., Hardware protection for web based applications

94

Nakov O., D.Tenev, Analyze of programming techniques for improvement of Java code performance

100

Froloshki H., Model of software agent for network security analysis

106

Pencheva E., V.Georgieva, Modelling of intelligence in Internet telephone system  

112

Atanasov I., Intelligence in switched and packet networks   

119

Christov C., A. Doseva, D. Kireva, Fail-safe quantitative estimation of the encoder in cab signalling systems  

126

Dobrev D., L. Jordanova, Increasing of the CATV systems capacity 

132

Jordanova L.,  D. Dobrev, RF front-end of CATV modem 

138

Georgiev J., S. Hristov, P. Stoinova, N. Spasova, Generator for standard TV signals  

144

Popov G.., Optimization of communication signals of public address systems

150

Stoyanov G., I.Uzunov, M.Kawamata, Tuning accuracy investigation of variable IIR digital filters realized as a cascade of identical sub-filters   

156

Nenova M., G.Stoyanov, G.Iliev, Investigation of Least-Squares algorithm based adaptive digital filter section for detection or suppression of a single sinusoidal signal

162

Anzova V., K.Ivanova, G.Stoyanov, Design of multiplierless linear phase FIR filters with minimum number of power-of-two terms coefficients

168

Hristov V., Simulation of modified pushout mechanism with elastic and deterministic traffic sources with priorities

174

Dosseva A., N. Serafimov, M. Palabikyan, JZG-703 system railroad modules failure test equipment  

180

Tanchev I., V.Draganov, Mixed signal multi-level circuit simulation 

185

Tanchev I., Transfer the parameter between elements model in AC–DC design area for simulation 

190

Draganov V., I. Tanchev, Possibilities for registering the changes of capacity of a capacity converter  

195

Yordanov S., Designing optimal neuro-fuzzy architectures for intelligent quality control   

200

Chukanov K., Optimum number of checks in diagnostics elements of fixed system  

206

Georgieva Y., S. Vassileva, S. Tzonkov, K. Georgieva, Identification of operating regimes of biotechnological process  

210

Bozukov N., C. Damyanov, I. Maslinkov, Information technology for grading of food products with neural networks  

216

Kamenova L., D. Jolly, Software for analysis and synthesis of industrial processes

221

 

BOOK 4 - ISBN 954-438-448-0

Popov Ev., L. Pindeva, B. Tsankovski, Controlling Frequency Influence on the Operation of Serial Thyristor RLC Inverters 

3

Zhivkov M., G. Georgiev, V. Valchev, An over-current protection of power modules using IGBT  

9

Filchev T., D. Yudov, V. Valchev, Investigation of  a  DC-DC resonant converter for power distribution applications

15

Yudov D., A. Dimitrov, A step-down pulse converter

21

Grigorova Ts., N. Bankov, Behavioral modeling of a control system of a transistor resonant inverter operated above resonant frequency  

28

Ivanov Sv., Ts. Grigorova, A. Lechkov, G. Bodurov, A multifunctional converter for the investigations and training in the field of the electric energy converters

34

Lechkov A., Ts. Grigorova, M.Bobcheva, A synthesis of the reversible thyristor-tranzistor converter output voltage

40

Lencheva P., R. Karov, Simulation researches of DC-DC invertor with RL load  of inverter part

46

Trendafilov R., R Karov, Dependances of the output current for series resonant inverter in DC-DC converters  

50

Ivanov Sv., E. Kostova, Active gate drivers for MOSFETS with circuit for dv/dt control  

56

Gospodinov D., Computer model of three phase motor 

62

Valchev V., G. Georgiev, A. Bossche, D. Yudov, Improved graphical metod for calculation of winding losses in transformers

67

Gospodinov D., P. Georgiev, Investigation of a computer model of three-phase motor regulated by frequency mode

73

Alexandrova S., V. Mikhailova, R. Kobilarov, E. Halova, Formation of thin SiOXNY films on Si by ion implantation   

78

Andreev S.K., Measurement of micro and nanocontact resistance 

83

Sevova J., D. Pukneva, M.Hristov, Monolithic spiral inductors design for RF applications  

89

Marinova I.., D. Pukneva, M. Hristov, The influence of geometry and temperature on the parameters of integrated capacitors  

95

Galionova K., D. Pukneva, M. Hristov, The influence of geometry and temperature on the parameters of integrated resistors  

101

Nachev R., K. Ivanov, M. Hristov, S. Ovcharov, A. Andonova, Fully-integrated 2.4GHz VCO with low phase-noise 

106

Arnaudov R., M. Hristov, I. Aldimirov, Method and application algorithm for lowering the impact of the timing jitter on the statistical indicators of the signal sampling based measurements   

111

Angelov G., V.Palankovski, M. Hristov, Continuous workbench of simulation & design software tools for educational applications   

117

Aldimirov I., Study of the impact of the timing jitter on the statistical indicators of the signal sampling based measurements 

123

Petrov B., Time optimized fixed point algorithm for unsigned division operation in programmable logical devices  

128

Simeonov I., An advertising module developed on the base of a CPLD programmable device 

134

Partenov I., B. Donchev, G. Staichev, Digital controller for syncronous buck-boost converter  

140

Manchev O., B. Donchev, K. Pavlitov, FPGA Implementation of artificial neurons

146

Barzinska V., E. Manolov, A practical simulation-based design of CMOS current reference based on a weak inversion operation 

152

Koparanov F., E. Manolov, M.Tzanov, Implementation of user-defined voltage transfer functions in FPAA

158

Tzanov M., E. Manolov, F. Koparanov, Implementation of periodic wave generators by using FPAA  

163

Yakimov P., E. Manolov, Sensors interfacing using FPAA 

169

Abdullah M., G. Dimitrov, SiGe HBT: technology and parameters-frequency response and current gain

175

Abdullah M., G. Dimitrov, UHF SiGe HBT amplifier: parameters and noise characteristics

181

Dušek K., J. Urbánek, Influence of mechanical stress on properties of lead and lead free soldered joints  

187

Dobrikov G., M.Rassovska, Photoluminescent and electroluminescent effects in conjugated polymer layers  

191

Videkov V., V. Petrova, S. Andreev, E. Mihailova, I. Iliev, A research on solder masks using lead and lead-free solders  

196

Denishev K., A.Petrova, Micromechanical piezoresistive tactile sensor

202

Shindov P., CdO thin films deposited by spray pyrolysis 

207