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Lecture 3: Signals, Spectrum Anders Västberg vastberg@kth.se 08-790 44 55
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Signals Deterministic Signals Stochastic Signals
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Deterministic signals Deterministic Signals PeriodicAperiodic SinusoidNon sinusoidAlmost periodicTransient
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Stochastic signals Stochastic signals StationaryNon-stationary ErgodicNon-ergodic
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Sinusoidal Function
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Fourier Series
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Time and Frequency Domain
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Spectrum
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Sampled Signals and Spectrum [Soliman & Srinath, 1990]
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Relation between bandwidth and data rate Data rate = Pulses / Time
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Homework before F4 Vad är mottagen effekt i Watt, om EIRP är 20 dBm, avståndet 2 km, mottagartennen har en antennvinst på 10 dB. Antag frekvensen 4 GHz och fri rymdutbredning.
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