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picture1_Lecture Ppt 80974 | 5 2018 12 19!12 02 45 Am


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File: Lecture Ppt 80974 | 5 2018 12 19!12 02 45 Am
course plan 1 introduction to communication systems signal analysis system impulse response band width energy and power calculation 2 definition of modulation types of modulation and reasons for modulation 3 ...

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  Course plan:
  1-Introduction to communication systems, Signal analysis (System impulse 
  response, band width, energy and power calculation.
  2-Definition of modulation, types of modulation and reasons for modulation.
  3-Amplitude Modulation (AM), definition, spectrum & power calculation.
  4-Generation and detection of AM signals, tutorial.
  5-Double side band DSB Generation and demodulation
  6-Single side band SSB Generation and demodulation
  7-Vestigial Side Band VSB Modulation generation and demodulation
  8-Super Heterodyne AM Receiver and Introduction to angle modulation.
                                                         2
        Lecture 1-1
  Course plane:
  9-Frequency Modulation (FM), Narrow and wideband FM, definition, bandwidth, 
  spectrum and power.
  10-Wideband FM, definition, bandwidth, spectrum and power.
  11-Super Heterodyne FM Receiver, Stereo FM, Frequency Division Multiplexing 
  (FDM).
  12-Noise: mathematical representation, classification, power and spectral density. 
  Thermal noise and additive white Gaussian noise.  
                                                                        
  13-Noise in Amplitude Modulation (Normal AM, DSB, SSB) communication 
  systems, tutorial.
  14-Figure of Merit and Noise in analogue communication systems, tutorial.
  15-Noise Comparison of FM and AM, tutorial.
                                                                            3
           Lecture 1-1
  References:
  1-  Bruce  Carlson  etl  “An  Introduction  to  Signals  and  Noise  in  Electrical 
  Communication”, McGraw-Hill Companies, Inc., 2002.
      
  2- John G Proakis and Masoud Salehi “Communication Systems Engineering”, 
  Prentice-Hall, Inc., 2002.
   
  3- Simon Haykin “Communication systems”, John Wiley and sons, Inc.,2001
          
  4-  Lloyd  T.  and  Mitchel  E.  S.,  “Theory  and  problems  of  Electronic 
  Communication”, Schaum’s outline Series, McGRAW-Hill, 1998.
      
  5- B. P. Lathi, “Modern Digital and Analog Communication system”, Oxford 
  University press, Inc., 1998.
                                                                            4
           Lecture 1-1
   Introduction to Communication System
  What is communication?
  It's  the  process  in  which  information  is  transfer  from  one 
  point  in  space  and  time  called  the  source  to  another  point 
  destination.
  What is a communication system?
  It's the group of mechanism that provides the information link 
  between source and destination.
  What is the purpose of a communication system?
  The  purpose  of  a  communication  system  is  to  transmit 
  information signals through a communication channel.                  Source: https://jooinn.com/communication-
                                                                                  system.html
  Fundamentals of Communication system:
  Frequencies 
  Frequency is measured in hertz (Hz), equivalent to cycles per second: thus 1 Hz is 1 c/s. The 
  electromagnetic spectrum consists of frequencies from just above 0 Hz to ∞ Hz. The frequency 
  spectrum  is  broken  up  into  different  segments  which  indicate  the  usage  for  particular 
  frequency range as shown in table below.
                                                                                                   5
             Lecture 1-1
  Introduction to Communication System
                          Common Frequency ranges
    The frequency band of 20 Hz to 21 kHz is the total band that the human ear can hear. 
   Types of Signal There are only two different types of signal that are processed, transmitted and 
   received  by  telecommunication  equipment. These  are  analogue  and  digital.  Each  type  has 
   individual characteristics.
                                                                           6
          Lecture 1-1
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