- Type of paper
: Paper in proceedings
Title: The Gaussian and Impulsive Noise Influence to MPSK Signal
- Authors:
- Rimac-Drlje, Snježana
Proceedings title: Elmar - zbornik radova
Language: hrvatski
Place: Zadar
Year: 1994
ISBN/ISSN: 1330-092X
Pages: from 181 to 184
Meeting: International ELMAR Simposium
Held: from 09/12/94 to 09/14/94
Summary: In the article it is shown the noise model whish takes into
account the presence of both the impulsive and Gaussian noise, and the
theoretical expression of the error probability for MPSK signals are
presented for low and medium capacity systems. A simulation of the Gaussian
and impulsive noise influence to MPSK signal is made, and it is shown the
probability of error in dependance of the impulsive and Gaussian noise
power relation in the total noise power.
Keywords: Gaussian and impulsive noise, data transmission, MPSK
- Type of paper
: Paper in proceedings
Title: The Rain Attenuation Influences on M-ary QAM and Dual
Polarized QAM Systems
- Authors:
- Rimac-Drlje, Snježana
- Rupčić, Slavko
Proceedings title: Elmar - Symposium Proceedings Electronics in Marine
Language: engleski
Place: Zagreb
Year: 1995
ISBN/ISSN: 1330-092X
Pages: from 191 to 194
Meeting: International ELMAR Simposium
Held: from 09/18/95 to 09/20/95
Summary: The rain attenuation influence on the digital signal
quality is analysed. The analysis includes the aplication of empirically
based channel models. The error probability of QAM and dual polarized QAM
systems has been calculated, and the influence of the rain induced
differential attenuation has been taken into account.
Keywords: Rain induced attenuation, QAM, dual polarized QAM, differential attenuation
- Type of paper
: Paper in proceedings
Title: Spectral Efficiency on Error Probability Of M-ary QAM and
Dual Polarized QAM
- Authors:
- Rupčić, Slavko
- Rimac-Drlje, Snježana
- Editors
- Bartolić, Juraj
Proceedings title: Zbornik radova 40. jubilarni godišnji skup KoREMA
Language: hrvatski
Place: Zagreb
Year: 1995
ISBN/ISSN: 953-6037-08-4
Pages: from 97 to 100
Meeting: Simpozij KOREMA
Held: from 04/19/95 to 04/21/95
Summary: In this paper, we analyzed and compared dual polarized
Ml-Mj QAM systems and systems with ordinary M-ary QAM modulation with
equal number of transmitted bits and also systems with equal modulation
level. Spectral efficiency and error probability of this systems are
analiyed. We restrict our study to nondispersive channels and to channels
where there is no intersymbol interference. The explicite vehocle for later
assumption is to assume rectangular pulses of infinite bandwidth and only
influence of Gaussian noise.
Keywords: spectral efficiency, error probability, QAM, dual polarized QAM
- Type of paper
: Paper in proceedings
Title: The Impulsive Noise Influence to the QAM Signal Quality in
a Fading Environment
- Authors:
- Rimac-Drlje, Snježana
- Rupčić, Slavko
- Editors
- Bartolić, Juraj
Proceedings title: Zbornik radova
Language: hrvatski
Place: Zagreb
Year: 1995
ISBN/ISSN: 953-6037-08-4
Pages: from 101 to 105
Meeting: 40. jubilarni godišnji skup KoREMA
Held: from 04/19/95 to 04/21/95
Summary: There has been given an estimation of error probability for
64QAM and 256QAM systems under Gaussian noise and the impulsive noise
influence in fadingless environment, and in multipath fading environment.
It has been analyzed the symbol error probability in dependance between
Gaussian and empulsive noise relation
Keywords: data transmission, digital communication system, Gaussian noise, impulsive noise,fading,coing techniques
- Type of paper
: Paper in proceedings
Title: Application of the moving least squares method in surface
generating
- Authors:
- Scitovski, Rudolf
- Jukić, Dragan
- Bašić, Ivica
- Editors
- Kalpić, Damir
Proceedings title: Proceedings of International Conference ITI '95
Language: engleski
Place: Zagreb
Year: 1995
ISBN/ISSN: 1330-1012
Pages: from 469 to 474
Meeting: International conference "Information Technology Interfaces"
Held: from 06/13/95 to 06/16/95
Summary: We give a computer method for surface generating from data
gathered by measurements. The method is based on smoothing the data by
using the moving least squares method. The paper includes a numerical
example done in Mathematica.
Keywords: surface generating, moving least squares
- Type of paper
: Paper in proceedings
Title: Eine Anwendung vom Softwarepaket ASYST in Messung von
Drehzahl und Drehmoment
- Authors:
- Valter, Zdravko (66764)
Proceedings title: 9. Internationales wissenschaftliches Kolloquium
Language: njemački
Place: Bremen, Njemačka
Year: 1994
Pages: from 63 to 70
Meeting: VIII. Internationales wissenschaftliches Kolloquium
Held: from 11/23/93 to 11/27/93
Summary: In dem Aufsatz wird dargestellt die Anwendung des
Sofftwarepakets ASYST in Messung von Drehzahl und Drehmoment im
Laboratorium fur Energetik der Hochschule Bremen. Diese Anwendung entstand
aus Ergebnis einer Diplomarbeit unter dem Namen "Modernisierung des
Prufstandes fur Messung von Drehzahl und Drehmoment im Labor fur
Energetik".
Keywords: Softwarepaket ASYST, Drehzahlmessung, Drehmomentmessung
- Type of paper
: Paper in proceedings
Title: Anwendung von Servo und Lenearantriebstechnik in
Verpackungsmaschinen
- Authors:
- Valter, Zdravko (66764)
Proceedings title: Proceedings
Language: njemački
Place: Pula
Year: 1994
Pages: from 241 to 244
Meeting: 8th International Conference on Electrical Drives and Power Electronics
Held: from 09/12/94 to 09/14/95
Summary: The modern electronic drive regulation makes posible the
new konstruction solutions by packing machines. The target by this
solutions is modular execution, high flexibility and noise reduce. An idea
is to exchange of komplexe rotary and linear movements with the servo
drives. For example is in this article shown the glueing of paper by
packing of cigarette boxis in packages.
Keywords: packing machines, servo drives, uatomatic glueing of paper
- Type of paper
: Paper in proceedings
Title: Analyze of high impendance faults in use of software
ASYSTANT
- Authors:
- Dorić, Dražen
- Karavidović, Damir (56741)
- Lovrinčević, Darko
Proceedings title: Zbornik radova 38. međunarodni godišnji skup KoREMA
Language: hrvatski
Place: Zagreb
Year: 1993
ISBN/ISSN: 953-6037-00-9
Pages: from 353
Meeting: 38. međunarodni godišnji skup KoREMA
Held: from 04/26/95 to 04/28/95
Summary: High impedance faults on the primary distribution system
cannot be detected effectivelyby the existing overcurent sensing devices.
Different tests are performed on the part of power network. The test
results are reported and discussed for the providing a practical evalution
of HIFs detection. "Asystence" software are used for the purpose of
analisation of wave shapes, particulary in case of frequency analisation.
- Type of paper
: Paper in proceedings
Title:
- Authors:
- Dorić, Dražen
- Karavidović, Damir (56741)
- Steinbruckner, Otto
Proceedings title: Zbornik radova seminara Mikroračunala u tehničkim sustavima
Language: hrvatski
Place: Rijeka
Year: 1994
ISBN/ISSN: 953-6042-06-1
Meeting: MIPRO '94
Held: from 05/23/94 to 05/26/95
Summary: Potential distribution on big grounding systems determines
the possibility of the appearance of danger voltage. The aim was determined
to improve the processing and survey of measurement data - the potential
of measurement points of the grounding systems by help of the adequate
software for processing and survey of numerous data.
In order to make it possible, the digital voltmeter that is used for
potential measurementwas equipped with measurement data memory unit, and to
enable its communication with the computer, through RS-232.
The topic of the work is the survey of the development of the
development of the memory unit, its communication with computer and the
processing of the measurement valuesof the grounding systems potential in
two and three dimensional form.
- Type of paper
: Paper in proceedings
Title: Computer Simulation of a Thyristor Rectifier
- Authors:
- Bašić, Ivica
- Editors
- Jović, Franjo
- Ivanović, Milan
- Hocenski, Željko
Proceedings title: Wissenschaft fur die Praxis
Language: engleski
Place: Osijek
Year: 1994
Pages: from 32 to 38
Meeting: VIII. Internationales wissenschaftliches Kolloquium
Held: from 11/23/93 to 11/27/93
Summary: Computer simulation of a thyristor rectifier is presented.
The various modes of operation are simulated. Although a simple model of
thyristor is used, a good agreement between the results of simulation and
theory is obtained.
Keywords: thyristor rectifier, computer simulation, PSpice
- Type of paper
: Paper in proceedings
Title:
- Authors:
- Ivšinović, Božidar (129132)
Proceedings title: Zbornik radova CIGRE '95.
Language: hrvatski
Place: Zagreb
Year: 1995
Meeting: Savjetovanje CIGRE
Held: from 05/14/95 to 05/18/95
Summary: A mathematical model for determination of main dimensions
of electrical rotating machines is given with the application to
synchronous machines with salient poles as the most complex geometric
configuration form of the active volume of the main magnetic circuit.
Keywords: electrical rotating machines, mathematical model, efficincy indicators, efficiency
- Type of paper
: Ph.D.
Title:
Faculty: Fakultet elektrotehnike i računalstva Sveučilište u Zagrebu
Author: IVŠINOVIĆ BOŽIDAR
Date of defense: 06/27/94
Language: hrvatski
Number of pages: 169
Summary: A matematical model for determination of main dimensions of
electrical rotating machines is given with the application to synchronous
machines with salient poles as the most complex geometric configuration
form of the active volume of the main magnetic circuit.
The results obtained by the application of mathematical model are the
achivement of minimum mass or losses of active parts for realistic
indicators of active material usege excluding the influence of
electromagnetically inactive or negligible active parts of the electrical
rotating machine.
Keywords: electrical rotating machines, mathematical model, efficiency indicators, efficiency
- Type of paper
: M.A.
Title: The Noise Influences to the Radiocommunication Network for
Data Transmission
- Authors:
- Karavidović, Damir (56741)
- Svoboda, Drago
- Špica, Nenad
Faculty: Fakultet elektrotehnike i računalstva Sveučilište u Zagrebu
Author: RIMAC-DRLJE SNJEŽANA
Language: hrvatski
Number of pages: 155
Summary: This work deals with the radio-telemetric system necessary
for the functions of remote control and guidance, as well as the modulation
techniques MPSK (M-ary Phase Shift Keying) and MFSK (M-ary Frequency Shift
Keying) which make it possible to obtain an arbitrary small probability of
error during data transmission, either by the extension of frequency band,
or by the increase of signal/noise ratio.
The influence of Gaussian noise on the probability of incorrect detection
of MPSK and MFSK signal has been presented, and the MPSK and MFSK
techniques have been compared according to their spectral and strenght
efficiency. The expressions for probability of error have been derived
during simultaneous effect of both Gaussian and impulsive noise. It is
assumed that the occurance probability of impulsive noise is governed by
Poisson distribtion and that that the impulsive noise amplitude has the
Rayleigh probability for different proportions of impulsive noise strenght
in the total noise strenght.
Keywords: data transmission, digital communication system, Gaussian noise, impulsive noise, fading, coding techniques
