SPIKES2K6 ANDHRA UNIVERSITY‚VISHAKAPATNAM TITLE “BUS IDENTIFICATION SYSTEM FOR VISION IMPAIRED” AUTHORS V.APARNA VALLI B.V.H.H.SUDHEER B.UMA SANKARA RAO FINAL YEAR E.I.E.DEPT
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DSP NOTES PREPARED 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
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Study of OFDM System and Implementation of FFT Algorithm in VHDL Ammu Krishnan1 ‚ Aswathy Sivanandan1 ‚ Indurekha P R1 ‚ Mekha V1 ‚ Shilpa K A 1 1 S7‚ B.Tech‚ Department of Electronics and Communication Engineering‚ National Institute of Technology‚ Calicut Project guide: Lyla B Das‚ Associate Professor‚ Department of Electronics and Communication Engineering‚ National Institute of Technology Calicut Abstract—Increasing the performance is the best criterion for developing any communication
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Module 2 Data Communication Fundamentals Version 2 CSE IIT‚ Kharagpur Lesson 1 Data and Signal Version 2 CSE IIT‚ Kharagpur Specific Instructional Objectives At the end of this lesson the students will be able to: • • • • • • • • • Explain what is data Distinguish between Analog and Digital signal Explain the difference between time and Frequency domain representation of signal Specify the bandwidth of a signal Specify the Sources of impairment Explain Attenuation and Unit of Attenuation
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EE4512 Analog and Digital Communications Chapter 7 Multiplexing Techniques Chapter 7 EE4512 Analog and Digital Communications Chapter 7 Multiplexing Techniques • Time Division Multiplexing • Pages 364-368 Chapter 7 EE4512 Analog and Digital Communications Chapter 7 • Time division multiplexing (TDM) combines several low‚ fixed and predefined bit rate sources into a single high speed bit stream for transmission over a single digital communication channel: Time slots
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Continuous-Phase Frequency Shift Keying (FSK) Contents Slide Slide Slide Slide Slide Slide Slide Slide Slide Slide Slide Slide Slide Slide Slide Slide Slide Slide Slide Slide FSK-1 FSK-2 FSK-3 FSK-4 FSK-5 FSK-6 FSK-7 FSK-8 FSK-9 FSK-10 FSK-11 FSK-12 FSK-15 FSK-16 FSK-17 FSK-18 FSK-19 FSK-20 FSK-22 FSK-23 Introduction The FSK Transmitter The FSK Transmitter (cont. 1) The FSK Transmitter (cont. 2) The FSK Transmitter (cont. 3) The FSK Transmitter
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CHAPTER 3 SYSTEM MODEL 3.1 MC-CDMA System model. What is MC-CDMA: - MC-CDMA is a digital modulation technique where a single data symbol is transmitted at multiple narrowband subcarrier encoded with a phase offset of 0 and π instead based on a spreading code. The narrowband subcarrier are generated using BPSK modulated signals‚ each at different frequencies which at baseband are at multiples of a harmonic frequency‚ 1/T_b. Consequently‚ the subcarriers are orthogonal to each other at baseband‚ and
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this layer. For example‚ on the copper wire medium‚ we can use different voltage levels for a certain time interval to represent ’0 ’ and ’1 ’. We may use +5mV for 1nsec to represent ’1 ’ and -5mV for 1nsec to represent ’0 ’. All the issues of modulation is dealt with in this layer. eg‚ we may use Binary phase shift keying for the representation of ’1 ’ and ’0 ’ rather than using different voltage levels if we have to transfer in RF waves. Binary Phase Shift Keying 3. Data Transmission
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Unit 1: Introduction to Electronic Communication Saurabh Khatri Lecturer Department of Computer Technology VIT‚ Pune Syllabus Unit 2 Unit 4 Unit 5 Unit 1 Unit 3 Books to refer “Communication Electronics- Principles and Applications”‚ by Frenzel‚ Tata McGraw Hill Publication‚ ISBN 0-07048398-1‚ Edition 3rd. ”Computer Networks”‚ by Andrew S. Tenenbaum ‚ Prentice Hall of India‚ ISBN 81-203-2175-8‚ 4th Edition. Assessment Total assessment = 100 15 – CT (7.5)
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panambo@yahoo.com Abstract – The receivers used to list Amplitude Modulation – Double Sideband Carrier (AM-DSBC) as the simplest receivers of any radio modulation technique; which may be why that version of amplitude modulation is still widely used today [1]. Amplitude modulation techniques are well established and understood when implemented with analog circuits and in Simulink. Since amplitude modulation is one of the earliest radios’ modulation techniques‚ this study illustrated the small part of its larger
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