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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PDA Personal Digital Assistants are hand-held personal computers that provide a host of personal information systems. PDAs are small‚ but versatile computers‚ slightly bigger in size than Palmtops and even Notebook computers. PDAs have their origin in British-made roaming device‚ Psion‚ a successor to Filofax‚ introduced in the 80s‚ for collecting POS (Position of Sales) data. Psion had several versions that define the device: a palmtop minicomputer with a small LCD display‚ tiny keyboard and
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BIRLA INSTITUTE OF TECHNOLOGY & SCIENCE‚ PILANI Pilani Campus Digital Signal Processing Lab 2 (You are instructed to write solutions‚ plots‚ observations and explorations in your observation record and get it signed before leaving the lab) [A] A sinusoidal signal s(t) is of frequency 1 Hz and peak amplitude of 1. 1. (i) Assume s(t) is sampled with sampling frequency of 10 Hz. Sub plot the samples of sinusoid for 4 sec . (ii) Now plot the continuous signals connecting these samples
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Research Paper Your research paper will be 5-7 pages‚ double-spaced. Appendices and bibliographic material will not count toward the total number of pages or word count. Extensive research on a particular topic is expected‚ and accurate documentation of all sources is critical. The paper may not be a simple overview but rather must examine closely a particular topic of interest related to ethics and information systems. The paper is submitted as a MS Word or Rich Text Format (.rtf) electronic file
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popular footballer in Moscow region. I want to read the essay About me essay is an exercise that is given to students so that they can learn writing on different topics. It is the first step of writing‚ when you will learn to write about yourself‚ you will also learn about writing other topics. For writing about me essay‚ all you have to know is your own self. The essay about myself comes under the category of narrative essays. In about me essay‚ you have to include the details of your life such as
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Critically evaluate the ‘World is Flat’ thesis put forward by Thomas Friedman. Thomas Friedman in his recent book ‘The world is flat’ discusses a short history of globalisation in the twenty-first century. His discovering journey took him around the world to investigate the new concept in transnational business. He views himself as Columbus-like‚ but in a new modern word‚ in which he is searching for the sources of today’s wealth. Only to come to a rhetorical conclusion that the world is “flat” not round
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Have you ever wondered if world peace is something that we truly desire? If so‚ why haven’t we started doing something in order to achieve it? I’m going to tell you why: Because it doesn’t exist. Peace has become one of the most important everlasting issues in all centuries‚ and it’s a concept that will continue to haunt future generations as long as we keep on doing nothing to make it happen. It is an utopian idea which consists of respecting each other’s beliefs and ideals. This means having
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THE ROLE OF THE UNITED NATIONS IN THE CHANGING WORLD Piotr Bystrek‚ IBP ¹ 12062 "WE THE PEOPLES OF THE UNITED NATIONS DETERMINED *to save succeeding generations from the scourge of war‚ which twice in our lifetime has brought untold sorrow to mankind‚ and *to reaffirm faith in fundamental human rights‚ in the dignity and worth of the human person‚ in the equal rights of men and women and of nations large and small‚ and *to establish conditions under which justice and respect for the obligations
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question has been asked by over a million people around the world: what technological invention could change the world for the better? An invention like the drone-a robot that can fly-may just be the answer. Drones were invented in the 90’s particularly in the 1980’s and it was first invented as a precursor of the modern day cruise missile. Like a car a drone has both military and daily uses. I believe that drones can benefit the world by reducing poverty‚ making differences in countries like Africa
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