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  2. Repetitive nerve stimulation - Wikipedia

    en.wikipedia.org/wiki/Repetitive_nerve_stimulation

    Repetitive nerve stimulation is a variant of the nerve conduction study where electrical stimulation is delivered to a motor nerve repeatedly several times per second. By observing the change in the muscle electrical response (CMAP) after several stimulations, a physician can assess for the presence of a neuromuscular junction disease, and differentiate between presynaptic and postsynaptic ...

  3. Nystagmus - Wikipedia

    en.wikipedia.org/wiki/Nystagmus

    Nystagmus as seen in a case of ocular albinism. The cause of pathological nystagmus may be congenital, idiopathic, or secondary to a pre-existing neurological disorder.It also may be induced temporarily by disorientation (such as on roller coaster rides or when a person has been spinning in circles) or by some drugs (alcohol, lidocaine, and other central nervous system depressants, inhalant ...

  4. Jitter - Wikipedia

    en.wikipedia.org/wiki/Jitter

    Jitter. In electronics and telecommunications, jitter is the deviation from true periodicity of a presumably periodic signal, often in relation to a reference clock signal. In clock recovery applications it is called timing jitter. [1] Jitter is a significant, and usually undesired, factor in the design of almost all communications links.

  5. Phase noise - Wikipedia

    en.wikipedia.org/wiki/Phase_noise

    In signal processing, phase noise is the frequency-domain representation of random fluctuations in the phase of a waveform, corresponding to time-domain deviations from perfect periodicity (jitter). Generally speaking, radio-frequency engineers speak of the phase noise of an oscillator, whereas digital-system engineers work with the jitter of a ...

  6. Pulse-per-second signal - Wikipedia

    en.wikipedia.org/wiki/Pulse-per-second_signal

    A pulse per second (PPS or 1PPS) is an electrical signal that has a width of less than one second and a sharply rising or abruptly falling edge that accurately repeats once per second. PPS signals are output by radio beacons, frequency standards, other types of precision oscillators and some GPS receivers. [1][2] Precision clocks are sometimes ...

  7. Unit interval (data transmission) - Wikipedia

    en.wikipedia.org/wiki/Unit_interval_(data...

    The unit interval is the minimum time interval between condition changes of a data transmission signal, also known as the pulse time or symbol duration time. A unit interval (UI) is the time taken in a data stream by each subsequent pulse (or symbol). When UI is used as a measurement unit of a time interval, the resulting measure of such time ...

  8. Network performance - Wikipedia

    en.wikipedia.org/wiki/Network_performance

    Network performance refers to measures of service quality of a network as seen by the customer. There are many different ways to measure the performance of a network, as each network is different in nature and design. Performance can also be modeled and simulated instead of measured; one example of this is using state transition diagrams to ...

  9. Yo-Yo intermittent test - Wikipedia

    en.wikipedia.org/wiki/Yo-Yo_intermittent_test

    Note: A circuit consists of running two shuttles followed by a 10 second rest period Table derived from "The Yo-Yo Intermittent Tests: A Systematic Review and Structured Compendium of Test Results" [4] and ESPNCricinfo [6] As a side note, "Speed Level" correlates exactly with "Running Speed (km/h)" using the formula: (Running Speed – 7.5) * 2.