2.  Signal: Physical quantity that varies with time, space or any other independent variable/s.  System: Physical device that performs an operation on a signal.  Signal Processing: An operation on a signal while passing through a system.

3.  Camera  Radio Advantages: 1. Flexibility 2. Accuracy 3. Storage facility 4. Cost minimization 5. Transportability

5. If analog clock disappears Clock wise and anti clockwise will be meaningless

6. Changing contrast Background removing Identify object Rotate image Noise reduction

7.  Biomedical: ECG,EEG  Space technology: Satellite data analysis  Radar and Sonar echo  Global Positioning system  Telephone and cellular communication  Audio Processing:DVD,DAT,DCC,MP3  Image Processing

8.  Discrete-time Signals and Systems  Digital Signal  Analog to Digital Conversion  Manipulation of Discrete-time signals  Difference Equation  Convolution  Correlation Quiz 1

9.  Z transformation and Properties  Inverse Z-transform  Pole-zero Plot Mid-term Examination

10.  Discrete-time Fourier Transform  Discrete Fourier Series  Discrete Fourier Transform and Properties -Circular Shift -Circular Convolution Quiz 2

11.  Digital Filter  Linear Phase FIR System  Design of FIR filter: Windowing  Design of IIR filter: Impulse Invariant and Bilinear Transformations Quiz 3

12.  Attendance- 5%  Quiz + Assignment(if any)-15%  Midterm-20%  Final Exam-60%

13. 2. Discrete-time Signal processing 2 nd Edition By- Alan V. Oppenheim Ronald W. Schafer John R. Buck 1. Digital Signal processing 4 th Edition By- John G. Proakis Dimitris G. Manolakis