DIGITAL SIGNAL PROCESSOR -VLSI PROJECT
Modeling inter-instruction energy effects in a digital signal processor
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This paper explores techniques for creating accurate instruction-level energy models for digital signal processors (DSP). Our initial results confirm previous work showing that inter- instruction effects can become a significant component of power consumption for many 1 Introduction DOPPLER ULTRASOUND is widely used for the study of blood flow both in the central and peripheral circulation. It is relatively easy to use and is noninvasive, so that both sequential and normal studies are possible. It may be used to estimate blood flow and pressure drops, to
Asynchronous Motors Drive Systems Command with Digital Signal Processor
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The objectives of this paper consists in developing methods and technologies of command and protection of performant static power converters for the drive systems, which meet the quality of electricity requirements, using intelligent algorithms, performance computing
Implementation of FM demodulator algorithms on a high performance digital signal processor
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Analog modulations are more and more replaced by digital ones. To keep the compatibility the new device should be able to perform the analog modulation. A interesting solution is to solve this with digital signal processing. In an earlier semester project, four FM demodulation
Efficient computation of phonocardiographic signal analysis in digital signal processor based system
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This article presents a real-time and cost effective system for the heart auscultation monitoring and hearing. The system design comprises of a Phonocardiographic pre- amplifier circuit with a TMS320C6711 Digital Signal Processor Starter kit (DSK) and its
Fast fourier transforms on a distributed digital signal processor
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Abstract Fast Fourier Transforms are used in a variety of Digital Signal Processing applications. As semiconductor process technology becomes more refined, the ability to implement faster and more efficient FFTs increases. However, due to the high costs and
An undergraduate digital control project: a digital signal processor (DSP)-based magnetic levitation system
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In this article, the author proposes a digital control project of a digital signal processor (DSP)- based magnetic levitation system (MLS) for undergraduate education. The eZdsp F2812 was utilised as a digital controller, the pulse width modulation (PWM) technique was
Using a fixed-point digital signal processor as a PID controller
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The digital signal processor (DSP) is a tool that has become available for control engineers in recent years. Proportional integral derivative (PID) control loops have been standard tools for decades. Combining these two tools provides a flexible and powerful demonstration
Implementation of voiceband modems on a digital signal processor
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This paper presents some considerations on the implementation of data sets on a programmable digital processor . The main points in this paper have resulted from our recent experience in programming voiceband data modulators and demodulators on the
An ASIC implementation of 16-bit fixed-point Digital Signal Processor
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In this paper, an ASIC implementation of 16-bit fixed-point digital signal processor (DSP) is proposed. This DSP is based on the Harvard architecture and is composed of 16 24-bit general purpose registers together with 41 four-cycle instruction sets. The DSP hardware is
Development of a flexible pulse programmer for MRI using a commercial digital signal processor board
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RESULTS AND DISCUSSION The minimum time interval between two successive events was 3.7 ts. This was because the overhead time in the pulse output loop was 3.3 ps and some overhead time (400 ns) existed between the count down start and the idling loop
A digital signal processor implementation of silent/electrolaryngeal speech enhancement based on real-time statistical voice conversion.
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In this paper, we present a digital signal processor (DSP) implementation of real-time statistical voice conversion (VC) for silent speech enhancement and electrolaryngeal speech enhancement. As a silent speech interface, we focus on nonaudible murmur (NAM)
PMSM control system based on digital signal processor
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For the high power density of PMSM, designed the corresponding drive controller to improve the servo efficiency of PMSM servo system. According to the theory of math model of PMSM under the dq coordinate system, applied id= 0 vector control method as a PMSM control
Thermal comfort feelings assessment based on digital signal processor
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In this paper, a new technique is being proposed to estimate the PMV by using an array of sensors for the automatic control of thermal sensation scale of the air conditioning system. The predicted mean vote (PMV) is a well recognized thermal comfort index and is used for
Implementation of digital signal processor to control three-phase voltage-source inverter
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This paper explores the advantages and implementation of Digital Signal Processing (DSP) TMS 320F2812 to generate gate pulses. The main features of this DSP are elaborated. The technique to obtain gate pulses in different pulse width modulation methods in order to
Frequency diversity wideband digital receiver and signal processor for solid-state dual-polarimetric weather radars
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The recent spate in the use of solid-state transmitters for weather radar systems has unexceptionably revolutionized the research in meteorology. The solid-state transmitters allow transmission of low peak powers without losing the radar range resolution by allowing
Four Quadrant Operation of Chopper Fed Separately Excited DC Motor by Decoupled PWM Control Using Digital Signal Processor
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DC Motors are used extensively in adjustable speed drives and position control applications. This paper proposes a method to control the speed and direction control of a DC motor by using a four quadrant DC-DC chopper. The speed below the base speed can
Digital audio: Examples of the application of the ASP integrated signal processor
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Electronic processing of audio signals is not new. Tone control by means of one or more analog filter stages is a well-known example from hi-fi technology-the technology of the faithful reproduetion of speech and music. Another example is the improvement of audio
Implementation of low-memory reference FFT on digital signal processor
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Problem statement: In order to improve and implement Fast Fourier Transform (FFT), in general, an efficient parallel form in digital signal processor is necessary. The butterfly structure is an important role in FFT, because its symmetry form is suitable for hardware
A 10-μW digital signal processor with adaptive-SNR monitoring for a sub-1 V digital hearing aid
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An ultra low-power digital signal processor (DSP) is proposed for the digital hearing aid. The DSP has a SNR monitor to vary its internal clock frequency in accordance with the input signal level. Digital filters use hardwired barrel shifters in place of multipliers, and a