BY nikhil teja DIGITAL SIGNAL PROCESSING A signal is defined as any physical quantity that varies with time‚ space or another independent variable. A system is defined as a physical device that performs an operation on a signal. System is characterized by the type of operation that performs on the signal. Such operations are referred to as signal processing. Advantages of DSP 1. A digital programmable system allows flexibility in reconfiguring the digital signal processing operations
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JOMO KENYATTA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY INSTITUTE OF COMPUTER SCIENCE AND INFORMATION TECHNOLOGY BSc COMPUTER TECHNOLOGY Literature Review On DIGITAL IMAGE CRYPTOSYSTEM WITH ADAPTIVE STEGANOGRAPHY NAME REG NO : JOHN NJENGA : CS 282-0782/2009 SUPERVISORS: DR. OKEYO MR. J WAINAINA 1 DECLARATION I declare that all materials presented here are my own original work‚ or fully and specifically acknowledged wherever adapted from other sources. The work has not been submitted previously
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3 Characteristics of the Digital Student In Uncategorized on May 25‚ 2011 at 6:09 pm Digital technology is changing almost every communications venue that exists. It is also having an impact on modifying the expectations that students and their parents have on educational facilities. Recent research shows that: 1. Most schools have failed to effectively utilize digital technology. Instead‚ it has been “tacked on” to the current education model. (Moe‚ 2009) 2. Because the current model in
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Hello‚ “How do you assess the value of all this information you find on the Internet‚ and how can you be sure that it is reliable and credible?” Well there are many ways you can assess the value of information on the internet. You could read through one site and determine if you think this on site is true and current. But not only can it be a waste of time to read through a site and implement the information and suggestions found there‚ only to later find that they were inaccurate‚ but such sites
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HTML5 Digital Classroom Jeremy Osborn and the AGI Training Team Contents Starting Up Section One: Essentials of HT ML‚ HT ML5‚ and CSS Lesson 1: Defining HT ML5 Lesson 2: Fundamentals of HT ML‚ XHT ML‚ and CSS Lesson 3: Formatting T ext with CSS Lesson 4: Introduction to CSS Layout Lesson 5: Advanced CSS Layout Section T wo: HT ML5 with CSS3 and JavaScript Lesson 6: Using HT ML5 Markup Lesson 7: Creating HT ML5 Forms Lesson 8: Introduction to JavaScript and jQuery Lesson 9: Working with Video
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PCM CODING/COMPANDING Q1. a)i) The process of quantisation introduces an error or noise component into the quantised signal. Derive an equation for the mean-squared quantisation error in terms of the quantization interval ‘a’. ii) Hence show that the peak signal-to-quantisation noise ratio (SQNR) is SQNR = ( 6n + 4.8 ) dB Where 2 n is the number of quantisation levels. b)i) Linear quantisation is used prior to binary PCM encoding of an analogue baseband signal which has
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Environmental issues are harmful effects of human activitity on the biophysical environment. Environmentalism‚ a social andenvironmental movement that started in the 1960s‚ addresses environmental issues through advocacy‚ education and activism. The carbon dioxide equivalent of greenhouse gases (GHG) in the atmosphere has already exceeded 400 parts per million (NOAA) (with total "long-term" GHG exceeding 455 parts per million). (Intergovernmental Panel on Climate Change Report) This level is considered
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A Critical Review of Strategy as Revolution Introduction Strategy has recently become the most important item on the management agenda because companies nowadays face increasingly more competition‚ turbulent economic environment and fast pace technological change (Chaharbaghi‚ and Willis ‚1998). In the article “Strategy as Revolution” by Gary Hamel (1996)‚ he defined what strategic innovation is and gives 10 principles that company in
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Introduction In the book‚ The Digital Invasion‚ the author Dr. Hart discusses the issue of digital technology. He presents the story in the form of a guide in which he shares his analysis as a psychologist as well as a former veteran author who is steeped in a lot of research about digital technology. Furthermore‚ this paper will review Hart’s story as well as his main arguments‚ and I will identify my personal response on this book. Summary To begin with‚ he brings up our modern dilemma which is
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Digital signal processor [edit] Typical characteristics Digital signal processing algorithms typically require a large number of mathematical operations to be performed quickly and repetitively on a set of data. Signals (perhaps from audio or video sensors) are constantly converted from analog to digital‚ manipulated digitally‚ and then converted again to analog form‚ as diagrammed below. Many DSP applications have constraints on latency; that is‚ for the system to work‚ the DSP operation must
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