Digital Communication Systems (Diploma)

Sampling, pulse and digital modulation, multiplexing and error control coding.

6 MonthsDuration 5Chapters24Topics

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Syllabus · पाठ्यक्रम

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01Unit 1: Sampling and Pulse Modulation 4 topics

Sampling theorem and Nyquist rate
Aliasing and anti-aliasing filter
Natural and flat-top sampling
PAM, PWM and PPM

02Unit 2: Pulse Code Modulation 5 topics

PCM block diagram
Quantisation and quantisation noise
Companding: mu-law and A-law
Bit rate and bandwidth of PCM
DPCM, delta and adaptive delta modulation

03Unit 3: Digital Modulation Techniques 6 topics

ASK, FSK and PSK
BPSK and DPSK
QPSK
QAM
Bit rate and baud rate
Bandwidth comparison

04Unit 4: Multiplexing and Multiple Access 4 topics

FDM and TDM
T1 and E1 digital hierarchy
WDM
FDMA, TDMA and CDMA

05Unit 5: Information Theory, Line Codes and Error Control 5 topics

Information and entropy
Shannon's channel capacity theorem
Line codes: NRZ, RZ, AMI, Manchester
Parity and Hamming codes
CRC

About

You will be able to

State the sampling theorem and explain PAM, PWM and PPM
Explain PCM, quantisation, companding, DPCM and delta modulation and calculate bit rates
Compare ASK, FSK, PSK, QPSK and QAM
Explain FDM, TDM, E1 / T1 and multiple access methods
Calculate entropy and channel capacity
Explain line codes and error detecting / correcting codes

Who it is for

Diploma Electronics Engineering students of Semester 4 (BTEUP)
Polytechnic students of other boards studying the same subject who want unit-wise coaching

What you need

Principles of Electronic Communication and Digital Electronics of earlier semesters

Questions

Which syllabus does the Digital Communication Systems course follow?

It follows the BTEUP (Board of Technical Education, Uttar Pradesh) diploma syllabus for Digital Communication Systems (Electronics Engineering, Semester 4). If your own board's or institute's syllabus differs, the centre follows your own syllabus.

Will this help in the semester examination?

Yes. Teaching is unit-wise as per the BTEUP scheme, with previous-year question practice, MCQ tests and doubt sessions before the semester exam.

Are numericals included?

Yes. Nyquist rate, PCM bit rate, baud rate, entropy and channel capacity problems are practised.