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Communication System II

Signal space concepts: Geometric structure of the signal space, vector representation, distance, norm and inner product, orthogonality, Gram-Schmidt orthogonalization procedure.

Matched filter receiver, Inter symbol interference, Pulse Shaping, Nyquist criterion for zero ISI, Signaling with duobinary pulses, Eye diagram, Equalizer, Scrambling and descrambling.

RF and Microwave Communication Lab

RF Experiments

  • Analyze the radiation patterns of the different antennas.
  • Experiments on Coaxial Line Section:

              Measurement of VSWR

              Measurement of unknown impedance

              Stub matching

              Measurement of Gain and Noise figure

  • Simulation and Testing of RF Circuits:

              RF Tuned Amplifier

RF and Microwave Communication

Scattering matrix parameters, Transmission matrix, Signal flow graph, Impedance matching, Single and double stub tuning, problems. Microwave wave-guide and planar-based passive devices, Microwave resonators, Power dividers, directional couplers, and filters, Isolator, Circulator, phase shifter, Microwave signal generators: Klystron, magnetron, and TWT. Microwave systems design, Microwave Amplifier design, Gain and stability, Oscillator design, Broadband systems, noise figure, and link budget.

 

Instrumentation and Control Lab

  • Study of sensors (e.g., LVDT, Temperature and Optical Sensors, Strain gauge) and their signal conditioning techniques
  • Illustration of measurement of process-variables such as pressure, flow, level, etc., and various calibration principles.
  • Evaluation of different filter circuits (e.g., Sallen-Key Low-Pass filter, Twin-T notch filter, All-Pass filters) and phase detector schemes.
  • Typical Measurement Circuits - Instrumentation amplifier and CMRR studies, Low current measurement techniques, Precision rectifiers, Charge amplifiers
  • Virtual Instrumentation Usi
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