CHAPTER 1 Signals and Spectra
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چکیده
1 Format From other sources To other destinations Channel symbols Message symbols Message symbols Information sink Optional Essential Channel symbols Digital input m i Information source Pulse modulate Bandpass modulate Synchronization Bit stream Digital baseband waveform Digital bandpass waveform u i g i (t) s i (t) z(T) r(t) X M T C h a n n e l Format Detect Demod-ulate & Sample Source encode Encrypt Channel encode Multi-plex h c (t) Channel impulse response Frequency spread Source decode Decrypt Channel decode Demulti-plex Frequency despread Multiple access Multiple access R C V u i Digital output m i
منابع مشابه
Analysis of Cardiac and Epileptic Signals Using Higher Order Spectra
......................................................................................................................................I CONTENTS.............................................................................................................. IV LIST OF FIGURES ................................................................................................. IX LIST OF TABLES ..........
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