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Communication Engineering (With Oral Questions And Answers) | Bakshi | Godse

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Communication engineering [Paperback]

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Description

Contents

  • Block Schematic of Communication System
    Analog and Digital base band signals and their bandwidth requirements.
    Necessity of modulation and types of modulation-AM, FM and PM.
  • Amplitude Modulation
    Block schematic of DSBFC, DSBSC, SSB, VSB and ISB transmitters. Generation methods, Mathematical analysis, modulation index,
    frequency spectrum, power requirement.
    Block schematic of receivers for above transmission. Mixers, detectors, Tracking, AGC. Modulator and demodulator ICs.
    Performance parameters for receiver such as selectivity, sensitivity, fidelity, image frequency rejection.
    Double conversion technique in Communication receivers.
  • Frequency Modulation
    Block schematic of FM transmitters, Narrow band and wide band FM generation. Direct and Indirect methods of generation,
    Mathematical Analysis, modulation index, frequency spectrum and bandwidth requirement.
    Block schematic of FM receivers, FM discriminators, pre-emphasis and de-emphasis.
    Comparison of AM and FM, Noise triangle. FM modulator and demodulator ICs.
  • Pulse Modulation
    Nyquist Criteria, PAM, PWM, generation and detection.
    PCM & Multiplexing-Techniques.
  • Radiation and Propagation
    Concept of radiation, basic antenna system-antenna gain, directivity and radiation pattern. Dipole antenna, Different R.F. bands used in
    communication, Mechanism of propagation. Groundwave, spacewave and skywave propagation, duct propagation, tropospheric
    scattering, fading, Diversity reception.
  • Audio Communication
    Microphor.es, Loudspeakers, loudspeaker enclosures, PA systems, Graphic equalizer, stereophony/Hi fi Systems, Recent trends in
    sound recording.
  • Telephony
    Principles of telephony, various tones, electronic telephone exchanges, DTMF pulsing techniques.
  • Noise
    Sources of noise, Johnson noise, SNR, Noise figure, noise temperature.
    Internet Technology, basic architecture, Applications.

Additional information

Weight 0.892 kg
Dimensions 19.2 × 3.6 × 25.5 cm
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