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  2. Ground loop (electricity) - Wikipedia

    en.wikipedia.org/wiki/Ground_loop_(electricity)

    When the signal is sent as a differential signal along a pair of wires, neither of which are connected to ground, any noise from the ground system induced in the signal lines is a common-mode signal, identical in both wires. Since the line receiver at the destination end only responds to differential signals, a difference in voltage between the ...

  3. Signal separation - Wikipedia

    en.wikipedia.org/wiki/Signal_separation

    The human brain can handle this sort of auditory source separation problem, but it is a difficult problem in digital signal processing. This problem is in general highly underdetermined , but useful solutions can be derived under a surprising variety of conditions.

  4. Electrical load - Wikipedia

    en.wikipedia.org/wiki/Electrical_load

    The term is used more broadly in electronics for a device connected to a signal source, whether or not it consumes power. [2] If an electric circuit has an output port , a pair of terminals that produces an electrical signal, the circuit connected to this terminal (or its input impedance ) is the load .

  5. Source–message–channel–receiver model of communication

    en.wikipedia.org/wiki/Source–message–channel...

    Usually, the source has a specific person in mind whom they wish to affect. Intrapersonal communication is a special case: the source and the receiver is the same person. [15] In such cases, the source tries to influence itself, like a poet who writes poetry in secret in order to emotionally affect themselves.

  6. Audio signal flow - Wikipedia

    en.wikipedia.org/wiki/Audio_signal_flow

    Audio signal flow is the path an audio signal takes from source to output. [1] The concept of audio signal flow is closely related to the concept of audio gain staging; each component in the signal flow can be thought of as a gain stage. In typical home stereo systems, the signal flow is usually short and simple, with only a few components.

  7. RF modulator - Wikipedia

    en.wikipedia.org/wiki/RF_modulator

    When the TV is tuned to the programmed channel, the video and audio signal of the source device is accessed. RF modulation can become difficult in a CATV system. High pass, low pass, and notch filters must be used to block certain frequencies, or channels, so that the modulator can broadcast the audio/video signal of the source device on that ...

  8. Wilson current mirror - Wikipedia

    en.wikipedia.org/wiki/Wilson_current_mirror

    Fig. 3: Small-signal model for impedance calculation. A circuit is a current source only to the extent that its output current is independent of its output voltage. In the circuits of Fig. 1 and Fig. 2, the output voltage of importance is the potential from the collector of Q 3 to ground.

  9. Phase noise - Wikipedia

    en.wikipedia.org/wiki/Phase_noise

    Phase noise measured by signal source analyzer (SSA). The SSA shows the positive part of the phase noise. In this picture there is a phase noise of the main carrier, 3 other signals and "noise hill". A weak signal disappears in the phase noise of the stronger signal