Stick…………………………………..9 2.4 A/D conversion of Analog ECG signal to Digital ECG signal………………………………10 2.5 Heart Attack Detection…………………………………………………………………….....11 2.6 Emergency Calling…………………………………………………………………………...11 3. DESIGN DETAILS………………………………………………………………………….……12 1. Analog ECG Circuitry……………………………………………………………………….12 3.2 A/D Conversion and RS232 of PIC16F877…………………………………………………..12 3.3 Digital Data Transmission of HP-3 Transceiver……………………………………………...13 3
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References: [1] Cisco Networks‚ "Cisco Visual Networking Index (VNI): Mobile Data Traffic Forecast‚ 2012– [Special Reports]‚" Signal Processing Magazine‚ IEEE‚ vol. 29‚ pp. 9-14‚ 2012. Communications‚ 2008. ATC 2008. International Conference on‚ 2008‚ pp. xxii-xxii. transmission‚" iEEE Globecom 2010 proceedings‚ 2010. multicarrier systems with blind channel estimation‚" Communications‚
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is provided. The techniques explored here are practical‚ efficient‚ and therefore‚ popular methods for audio sampling and listening as well as other digital to analog applications. II. THEORY & SETUP To first get a better understanding of pulse-width modulation‚ consider the schematic of the LED dimming circuit shown in Figure 1. Figure 1: A light dimmer. A switch controls if the LED is on or off. The LED is on when it’s connected to the battery (switch upwards). The LED can only be completely
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using MATLAB E. Darren Ellis Department of Computer and Electrical Engineering University of Tennessee‚ Knoxville Tennessee 37996 (Submitted: 09 May 2001) This project entails the design of a speaker recognition code using MATLAB. Signal processing in the time and frequency domain yields a powerful method for analysis. MATLAB ’s built in functions for frequency domain analysis as well as its straightforward programming interface makes it an ideal tool for speech analysis projects. For the
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Least Significant Bit (LSB) embedding as the method of choice for message hiding 24-bit‚ 8-bit color images and grayscale images. It is commonly understood that changes to the LSB of color cannot be detected due to noise that is always presents in digital images. In this paper‚ we describe a new very accurate and reliable method that can detect LSB. Embedding in randomly scattered pixels in both 24-bit color images and 8bit grayscale or color images. The first step is steganography is that to embed
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EE2 Signals and Linear Systems Pier Luigi Dragotti Electrical & Electronic Engineering Department Imperial College London URL: http://www.commsp.ee.ic.ac.uk/~pld/Teaching/ E-mail: p.dragotti@imperial.ac.uk PLD Autumn 2012 Thursday‚ 27 September 12 Signals and Linear Systems Lecture 1 Aims and Objectives “The concepts of signals and systems arise in a variety of fields and the techniques associated with these notions play a central role in many areas of science and technology
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article covers the theory behind a Delta-Sigma analog-to-digital converter (ADC). It specifically focuses on key digital concepts of oversampling‚ noise shaping‚ and decimation filtering. Introduction Sigma-delta converters offer high resolution‚ high integration‚ and low cost‚ making them a good ADC choice for applications such as process control and monitoring. The analog side of a sigma-delta converter (a 1-bit ADC) is very simple. The digital side‚ performing filtering and decimation‚ makes the sigma-delta
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not harmonically associated with the sampling frequency‚ then at this point‚ the reaction for this FFT behaves just like a sinc function i.e. commonly known as the sampling function‚ defined as a function used to rise the frequency in the signal processing and propagation‚ classified as Fourier transforms[4] . However‚ the other components such as integrated power and aliasing have different variations as the integrated power still gives you the correct values but aliasing can be reduced by using
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Detection of pollutants in atmosphere by digital signal processing of satellite images Abstract Satellite imaging has changed the view of remote sensing application. Different methods and ways of processing have been found out . These methods have extended from military applications to research work. A satellite image has to go for image processing and the proper pictorial view can be achieved of the required object. Remote sensing is done in two ways one is satellite imaging and other is ariel
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best way of making money. For me E-commerce is the use of electronic communications and digital information processing technology in business transactions to create‚ transform‚ and redefine relationships for value creation between or among organizations and between organizations and individuals. So‚ as I’ve said e-commerce is for transaction then it is a business tool on any technical aspects that needs some digital information processing’s-commerce is very beneficial it improves the services on market
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