Articole științifice/Scientific articles: Recent submissions

  • Mathematical counter/converter for mixed analog and digital simulations [articol] 
    Maranescu, Valentin-Ioan; Jurcă, Lucian Aurel (Timişoara : Editura Politehnica, 2004)
    This paper proposes a new method for simulations in mixed analog and digital circuits that offer one easy way to run all spice analysis from one or more different digital code combinations. With this method it is possible ...
  • Application for TESPAR coding study and speaker recognition experiments [articol] 
    Lupu, Eugen; Moca, Vasile V.; Pop, Petre G. (Timişoara : Editura Politehnica, 2004)
    TESPAR coding (Time Encoding Signal Processing and Recognition) represents an effectiveness alternative to the other common methods (Dynamic Time Warping, Vector Quantization, Hidden Markov Models, etc.) used for speech/speaker ...
  • Charge pump buck converter [articol] 
    Lazăr, Alexandru; Florea, Mihail; Alexa, Dimitrie; Lazăr, Luminița Camelia (Timişoara : Editura Politehnica, 2004)
    The paper proposes a new DC/DC converter topology, based on Buck converter principle. The new converter assures soft turn-on and soft turn-off of the active devices. During of each commutation, the converter pumps a defined ...
  • Knock detection based on neural networks [articol] / 
    Lăzărescu, Dan; Ungureanu, Mihaela G. (Timişoara : Editura Politehnica, 2004)
    The paper presents a new method for knock detection based on two neural networks. First a discrete Hopfield network extracts features from the structural vibration signal. Then the first and the forth coefficients of the ...
  • Serial antiresonance compensator with notch filter [articol] / 
    Krneta, Radojka; Milenković, Sanja (Timişoara : Editura Politehnica, 2004)
    The application of serial antiresonance compensator with notch filter in the speed control system for the cancellation of the undesirable effects of torsion resonance on the motor shaft has been discussed in this paper. ...
  • Low-cost electronic board improves electronics laboratory efficiency [articol] 
    Ionel, Sabin; Dăneţi, Marllene (Timişoara : Editura Politehnica, 2004)
    A low-cost electronic board (Laborplatine) connected to a PC can be used to simulate the facilities of a digital oscilloscope, function generator, voltmeter etc. Using this board in order to achieve real signals from ...
  • Designing and implementation of dual voltage, low leakage and low power bi-directional CMOS I/O circuits [articol] 
    Ionaşcu, Cristian; Burdi, Dănuţ; Dimitriu, Bogdan (Timişoara : Editura Politehnica, 2004)
    This paper presents the designing and implementation of the dual voltage, low leakage and low power bidirectional input-output (I/O) circuits. The proposed architecture contains a pre-driver block, an output driver and an ...
  • Phase approximation using signals affected by random perturbations [articol] 
    Grama, Lăcrimioara (Timişoara : Editura Politehnica, 2004)
    The goal of this paper is to give a comparison between two methods for phase approximations: non-compact gain technique for linear frequency domain and the approach based on logarithmic sampling of gain for logarithmic ...
  • Synthesis of controlled nonlinear simulated circuit elements based on a GIC-structure [articol] 
    Goraş, Tecla; Alexa, Dimitrie; Goraş, Liviu (Timişoara : Editura Politehnica, 2004)
    In this communications the possibilities offered by the Antoniou’s GIC structure to synthesize electrically controlled nonlinear (generalized) circuit elements are analyzed.
  • Hardware simulation and debugging for microchip RISC microcontrollers [articol] 
    Gontean, Aurel; Băbăiţă, Mircea-Ilie; Jibleanu, Roxana (Timişoara : Editura Politehnica, 2004)
    This paper introduces the possibility of using simultaneously both the Microchip MPLAB IDE and the Lab Center Proteus simulation software. Differences between the simulated results and the real world behavior are emphasized ...
  • Neural-network-based control [articol] 
    Giurgiu, Luminița; Demeter, Ştefan (Timişoara : Editura Politehnica, 2004)
  • Experimental characterization of impulse response for optical indoor wireless channels [articol] 
    Ghişa, Laura; Telescu, Mihai; Besnard, Pascal; Mihăescu, Adrian (Timişoara : Editura Politehnica, 2004)
    Indoor infrared wireless communications can offer in certain applications a valuable alternative to wireless radio. Its main advantages being: low cost, medical safety and unlicensed spectral band. The most suitable infrared ...
  • Lowpass active filter synthesis based on mesh current emulation of LC ladder structures [articol] 
    Gál, János; Naforniță, Corina Alda; Câmpeanu, Andrei (Timişoara : Editura Politehnica, 2004)
    In a series of papers, [1]-[3], A. Câmpeanu and M. Naforniţă proposed a new active RC filter synthesis method based on mesh current emulation of LC ladder filter networks. Initially, the method was successfully applied to ...
  • A log-domain circuit design method based on F-1 N F models [articol] 
    Feştilă, Lelia; Groza, Robert; Fazakas, Albert; Cîrlugea, Mihaela; Hintea, Sorin (Timişoara : Editura Politehnica, 2004)
    We developed in [1] a systematic modular design method for externally linear internally nonlinear (ELIN) circuits. This is a general and unitary approach for reconfiguring a linear block diagram into an equivalent ELIN ...
  • Selective encryption of image with IDEA algorithm [articol] 
    Fericean, Gabriel; Borda, Monica Elena (Timişoara : Editura Politehnica, 2004)
    In this paper, a study of selective image encryption using IDEA algorithm is presented. Experimental results show a good image security using the proposed selective encryption.
  • Using SINH-Z building blocks in linear applications [articol] 
    Fazakas, Albert; Feştilă, Lelia; Groza, Robert (Timişoara : Editura Politehnica, 2004)
    The SINH building block is used in the design of hyperbolic circuits. In this paper, starting from an existing lossy integrator structure with hyperbolic circuits, an alternative connection of the SINH block is proposed. ...
  • An improved MIMO-OFDM channel estimator in the tracking phase [articol] 
    Enescu, Andrei Alexandru; Ciochină, Silviu (Timişoara : Editura Politehnica, 2004)
    MIMO (Multiple Input Multiple Output) channels provide high theoretical capacity, today intensively exploited in modern communication systems, where they employ space diversity or/and provide a spectral efficiency increase. ...
  • K - complex detection using the continuous wavelet transform [articol] 
    Dumitrescu, Cătălin (Timişoara : Editura Politehnica, 2004)
    The wide variety of waveform in EEG signals and the high non-stationary nature of many of them is one of the main difficulties to develop automatic detection system for them. In sleep stage classification a relevant transient ...
  • Development system equipped with AT89S8252 microcontroller [articol] 
    Duma, Petruţ (Timişoara : Editura Politehnica, 2004)
    The work describes the hardware structure of a development system based on AT89S8252 microcontroller. This system is used for testing and checking various user applications based on systems equipped with ATMEL family ...
  • Software setting telephone links using ATMEL microcontrollers in time switching network PABX [articol] 
    Duma, Petruţ (Timişoara : Editura Politehnica, 2004)
    The work briefly presents the resources of a low capacity telephone exchange with temporal switching, using PCM encoding for the conversation signal, then the stages for performing local, outgoing and incoming telephone ...

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