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Analog signals, digital signals, quantizated signals

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For purpose of visualization, registration and transmission messages (information)

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Energy and Power Signals

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electrical current flowing through a resistor

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MRI signal showing Normal and unnormal brain.

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MRI signal showing Normal and unnormal brain.

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There are two main types of signals used in electronics which are analog and digital signals

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analog and digital

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analog and digital

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Analog and digital signal. Cosine, sine, square wave.

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a switch

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Fiber Optic Signal

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Analog signals – continuous in values and time,

Digital signals – discrete in values and time,

Sampled signals – continuous in values, discrete in time,

Quantizated signals – discrete in values, continuous in time.

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sine wave

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Continuous time periodic signal(top pic)
Discrete time periodic signal(bot pic)

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AC signal, AM signal, FM signal, PWM signal

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AC signal, AM signal, FM signal, PWM signal

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analog, digital, sampled, quantizated signals

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Analog signals – continuous in values and time,

Digital signals – discrete in values and time,

Sampled signals – continuous in values, discrete in time,

Quantizated signals – discrete in values, continuous in time.

Square Signal,
Triangular Signal
Sawtooth Signal
Noise Signal
Pulse Signal
Unit Steps and Spike Signals,

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microphone

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Network bandwidth

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real and imaginary signal

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Electrical pulse in our body

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human voice
thermometer

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Saw tooth waveform

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analog and digital signals