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SYLLABUS

UNIT-1:

Analog Modulation Amplitude Modulation – AM, DSBSC, SSBSC, VSB – PSD, Modulators and demodulators – Angle modulation – PM and FM – PSD, Modulators and demodulators – Superheterodyne receivers

UNIT-2:

Pulse Modulation Low pass sampling theorem – Quantization – PAM – Line coding – PCM, DPCM, DM, and ADPCM and ADM, Channel Vocoder – Time Division Multiplexing, Frequency Division Multiplexing

UNIT-3:

Digital Modulation and Transmission Phase shift keying – BPSK, DPSK, QPSK – Principles of M-ary signaling M-ary PSK & QAM – Comparison, ISI – Pulse shaping – Duo binary encoding – Cosine filters – Eye pattern, equalizers

UNIT-4:

Information Theory and Coding Measure of information – Entropy – Source coding theorem – Shannon–Fano coding, Huffman Coding, LZ Coding – Channel capacity – Shannon-Hartley law – Shannon’s limit – Error control codes – Cyclic codes, Syndrome calculation – Convolution Coding, Sequential and Viterbi decoding

UNIT-5:

Spread Spectrum and Multiple Access PN sequences – properties – m-sequence – DSSS – Processing gain, Jamming – FHSS – Synchronisation and tracking – Multiple Access – FDMA, TDMA, CDMA