Digital Signal Processor
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Recent papers in Digital Signal Processor
Key issues related to the modeling of ultra-high speed transmission are discussed in this paper. These topics include components modeling, link modeling and BER estimation. Different solutions for the transport of 100 Gb/s over a single... more
A model of the multibeam echosounding process was developed. This model has now been used as the basis for the application of a model inversion technique, with the aim of analyzing midwater multibeam echosounder data, for fisheries... more
Coupled-bunch instabilities excited by RF cavity high order modes or resistive wall impedance can seriously limit the performance of third generation synchrotron light sources like ELETTRA. These instabilities can be cured by the use of... more
Hardware and software systems are growing everyday in scale and functionality. This increase in complexity increases the number of subtle errors. Moreover, some of these errors may cause catastrophic loss of money, time, or even in many... more
This paper describes a novel structure for a hardwired fast Fourier transform (FFT) signal processor that promises to permit digital spectrum analysis to achieve throughput rates consistent with extremely wide-band radars. The technique... more
AbstractThis paper describes a 16-bit programmable fixed-point digital signal processor, called MDSP-II, for mobile commu-nication applications. The instruction set of MDSP-II was deter-mined after a careful analysis of the global system... more
... Sensory information comes from a Laser Range Finder also developed by the author [6]. Range data are made up of hundreds of 2D relative coordinate points of targets in the field of view of the sensor camera, already filtered and... more
TACTILE VOCODERS are sensory substitution devices that present sound information to persons with profound hearing loss who benefit little from conventional hearing aids. These devices utilise the 'vocoder' principle developed for speech... more
... America Journal of Low Power Electronics Vol. 5, 3139, 2009 Design of Low Power Parallel Multiplier Rahul M. Badghare1∗, Sanjiv Kumar Mangal1, Raghavendra B. Deshmukh2, and Rajendra M. Patrikar2 1Computational ...
presents an open-architecture Computerized Numerical Control (CNC) system based on Windows CE, which is a multi-task embedded real-time operating system. The CNC system adopts a master-slave architecture, And the Master applies with... more
This paper presents the implementation of a predictive control scheme for an indirect matrix converter. The control scheme selects the switching state that minimizes the reactive power and the error in the output currents according to... more
A novel technique for space-vector modulation (SVM) inverters in the overmodulation range is presented. A unique algorithm manages the transition from the onset of overmodulation to six-step operation. The technique is suitable for a very... more
Overtaking and lane changing are very dangerous driving maneuvers due to possible driver distraction and blind spots. We propose an aid system based on image processing to help the driver in these situations. The main purpose of an... more
Induction motor (IM) speed sensorless control, allowing operation at low and zero speed, optimizing torque response and efficiency, will be presented in this paper. The magnitude and the orientation angle of the rotor flux of the IM are... more
This paper presents a modified adaptive Kalman filter for sensorless current control of a three-phase inverter based distributed generation system. The delay introduced by measurements and the digital signal processor is compensated using... more
In this work, the study, design and development of a Digital Lock In Amplifier (DLIA) with a Digital Signal Processor (DSP) DSP32C from AT&T is presented. To synchronize the DLIA oscillator with external signal, a Discrete Phase Locked... more
This paper deals with the control and observation of an induction motor using sliding-mode technique. Our aim is to regulate the speed and the square of the rotor flux magnitude to specified references. Assuming that all the states are... more
We present an automated methodology for producing hardware-based random number generator (RNG) designs for arbitrary distributions using the inverse cumulative distribution function (ICDF). The ICDF is evaluated via piecewise polynomial... more
The design and analysis of an experimental study on Digital Signal Processor (DSP) controlled single-phase Pulse Width Modulation (PWM) inverter are presented in this paper. The study also aims to enhance undergraduates' knowledge on... more
A digital signal processor (DSP) based two-parameter data acquisition system, connected to two analog-to-digital converters (ADCs) by means of an ad hoc built interface. was developed in order to perform real-time, on-line data... more
This paper presents digital signal processor (DSP) based direct torque control scheme using space vector modulation (DTC-SVM) for permanent magnet synchronous motor (PMSM) drives. The analysis of PMShl shows that the increase of... more
This paper presents the discussion on efficiency of different implementation methodologies of DSP algorithms targeted for modern FPGA architectures. Modern programmable structures are equipped with specialized DSP embedded blocks that... more
The integrity of electric motors in work and passenger vehicles can best be maintained by frequently monitoring its condition. In this paper, a signal processing-based motor fault diagnosis scheme is presented in detail. The... more
This paper presents the modeling and simulation of a 25 kV 50 Hz AC traction system using Power System Block set (PSB) / SIMULINK software package. The three-phase system with substations, track section with rectifier-fed DC locomotives... more
Applications of digital signal processing in telecommunications are considered, taking into account the characteristics of telecommunications systems, aspects of digital transmission, digital switching, digital signal processing in... more
... In the previous application, an accurate and reduced part closed loop control has been achieved through the ... control loop to control the current through the filter inductor, and an outer control loop to Fig. ... [13] SM Dehghan, M.... more
This paper describes a new course on Digital Signal Processing for Power Electronics Practice for undergraduate students of Electronics Engineering at Federico Santa María University of Technology. A comprehensive program was designed to... more
Abstract-Improved reliability and fault tolerant operation of inverter-fed variable frequency ac drives are very impor-tant for critical industrial applications. The paper describes variable frequency, variable voltage operation of a... more
Conventional passive headsets often perform well in reducing high-frequency noise but perform badly to cancel the low-frequency noise. Accordingly, academic researches and companies have developed active noise-reducing headsets to cancel... more
An active noise control (ANC) system with a digital signal processor (DSP) is proposed for snoring noise cancellation. The ANC system applies the filtered-X least mean square (FXLMS) method to generate anti-snoring noise by estimating the... more
Steady advances in VLSI technology and design tools have extensively expanded the application domain of digital signal processing over the past decade. While application-specific integrated circuits (ASICs) and programmable digital signal... more
This paper presents a method to detect the rotor position of permanent-magnet motors at standstill, which is suitable to avoid temporary reverse rotation at startup or starting failure. The approach is based on the investigation of the... more
He is engaged in research and teaching in digital communications and wireless systems, equalization and channel estimation in multicarrier (OFDM) communication systems, and efficient modulation and coding techniques (TCM and turbo... more
The current paper aims at presenting and examining an implementation on a digital signal processor (DSP) of the conventional space vector pulse width modulation(CSVPWM) so as to control the dual three phase permanent... more
Due to the growing changes in the electrical network related to the new distributed generation scheme and the integration of renewable energy sources, new requirements for grid-connected power converters are being defined in the new grid... more
This paper presents a predictive current control method and its application to a voltage source inverter. The method uses a discrete-time model of the system to predict the future value of the load current for all possible voltage vectors... more
A highly efficient energy management system for hybrid electric vehicles (HEV), using neural networks (NN), was developed and tested. The system minimizes the energy requirement of the vehicle and can work with different primary power... more
This paper presents a novel instruction cell-based reconfigurable computing architecture for low-power applications, thereafter referred to as the reconfigurable instruction cell array (RICA). For the development of the RICA, a top-down... more
A new mathematical model of the power circuit of a three-phase voltage source converter (VSC) was developed in the stationary and synchronous reference frames. The mathematical model was then used to analyze and synthesize the voltage and... more
This paper describes a digital proportional-integral-derivative (PID) controller technique applied to the DC-DC buck converter. The converter is modelled using a state space averaging technique. Due to the non-linear of the power... more
We present a novel computation sharing multiplier architecture for two's complement numbers that leads to high performance digital signal processing systems with low power consumption. The computation sharing multiplier targets the... more
This article presents a low complexity dual tone multiple frequency (DTMF) signal detector that meets the International Telecommunication Union (ITU) Q.24 DTMF standard while implemented on a general purpose Digital Signal Processor... more