06EC61 - DIGITAL COMMUNICATION |
PART – A |
UNIT – I |
Basic signal processing operations in digital communication. Sampling
Principles: Sampling Theorem, Quadrature sampling of Band pass signal,
Practical aspects of sampling and signal recovery. |
UNIT – II |
PAM, TDM. Waveform Coding Techniques, PCM, Quantization noise and
SNR, robust quantization. |
UNIT – III |
DPCM, DM, applications. Base-Band Shaping for Data Transmission,
Discrete PAM signals, power spectra of discrete PAM signals. |
UNIT – IV |
ISI, Nyquist’s criterion for distortion less base-band binary transmission,
correlative coding, eye pattern, base-band M-ary PAM systems, adaptive
equalization for data transmission. |
PART – B |
UNIT – V |
DIGITAL MODULATION TECHNIQUES: Digital Modulation formats,
Coherent binary modulation techniques, Coherent quadrature modulation
techniques. Non-coherent binary modulation techniques. |
UNIT – VI |
Detection and estimation, Model of DCS, Gram-Schmidt Orthogonalization
procedure, geometric interpretation of signals, response of bank of correlators
to noisy input. |
UNIT – VII |
Detection of known signals in noise, correlation receiver, matched filter
receiver, detection of signals with unknown phase in noise. |
UNIT – VIII |
Spread Spectrum Modulation: Pseudo noise sequences, notion of spread
spectrum, direct sequence spread spectrum, coherent binary PSK, frequency hop spread spectrum, applications. |
REFERENCE |
TEXT BOOKS: |
1. Digital communications, Simon Haykin, John Wiley, 2003. |
Reference Books |
1. Digital and analog communication systems & An introduction to
Analog and Digital Communication, K. Sam Shanmugam, John
Wiley, 1996. 2.Simon Haykin, John Wiley, 2003
2. Digital communications - Bernard Sklar: Pearson education 2007 |
|