## Introduction to signal transmission |

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### Contents

Representation of Noise | 26 |

Baseband Transmission of Telephone Signals | 57 |

Baseband Transmission of Telegraph Signals | 78 |

Copyright | |

8 other sections not shown

### Common terms and phrases

amplifier amplitude analog applied approximation average power band band-limited bandpass filters bandwidth baseband baseband signal binary calculate carrier frequency carrier wave channel compandor components defined demodulator density function envelope detector equal equations error FDM system Fourier series Fourier transform frequency detector gaussian noise Hilbert transform input instantaneous integral intersymbol interference interval ks(t linear modulation linear time-invariant low-pass filter lower sideband mean-square multiplex negative noise power noise source noise wave nonlinear Nyquist obtain oscillator output phase shift phase-locked loop Prob pulse quantizing range regenerative repeaters representation represented result samples sequence shown in Fig signal power signal wave signal-to-noise ratio sine wave sinusoidal spectral density spectrum speech switch symbol talkers telegraph telephone theorem theory thermal noise tion transmission transmittance function transmitted tuned circuit varactor varistor voice voltage