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Diode Rectifier

Diode Rectifier. + v d -. + v R (t) -. ~. e(t). R L. v d. Add a Capacitor. + v R (t) -. ~. e(t). C. R L. Diagonal Clipping. RC Time Constant chosen properly. “Diagonal Clipping” RC Time Constant chosen improperly. Minimum Signal Level. v d.

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Diode Rectifier

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  1. Diode Rectifier + vd - + vR(t) - ~ e(t) RL vd

  2. Add a Capacitor + vR(t) - ~ e(t) C RL

  3. Diagonal Clipping RC Time Constant chosen properly. “Diagonal Clipping” RC Time Constant chosen improperly.

  4. Minimum Signal Level vd Function of maximum modulation index Carrier Voltage at Input to Detector Power Required into (matched) detector for undistorted output: Constant determined by detector characteristics

  5. Superheterodyne Receiver PDET Mixer RF Front End (Amps, Filters) IF Strip (Amps, Filters) Detector (Demodulation) Recovered Information Service Band Channel Selectivity PIN Local Oscillator

  6. Pulse Modulation tpw TPRF =1/fPR fc fc

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