Coherence time
For an electromagnetic wave, the coherence time is the time over which a propagating wave (especially a laser or maser beam) may be considered coherent, meaning that its phase is, on average, predictable. In long-distance transmission systems, the coherence time may be reduced by propagation factors such as dispersion, scattering, and diffraction. The coherence time, usually designated τ, is calculated by dividing the coherence length by the phase velocity of light in a medium; approximately given by
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Coherence time
For an electromagnetic wave, the coherence time is the time over which a propagating wave (especially a laser or maser beam) may be considered coherent, meaning that its phase is, on average, predictable. In long-distance transmission systems, the coherence time may be reduced by propagation factors such as dispersion, scattering, and diffraction. The coherence time, usually designated τ, is calculated by dividing the coherence length by the phase velocity of light in a medium; approximately given by
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For an electromagnetic wave, t ...... ce from the Earth to the Moon.
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Para una onda electromagnética ...... tancia de la Tierra a la Luna.
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Час когерентності — це час, пр ...... відстані від Землі до Місяця.
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في نظم الاتصالات قد تتغير قناة ...... سلكية وذلك بسبب تأثيرات دوبلر.
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For an electromagnetic wave, t ...... medium; approximately given by
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Para una onda electromagnética ...... ene dado, aproximadamente, por
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Час когерентності — це час, пр ...... вищі; наближення дано формулою
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في نظم الاتصالات قد تتغير قناة ...... سلكية وذلك بسبب تأثيرات دوبلر.
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Coherence time
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Tiempo de coherencia
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Час когерентності
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زمن الاتساق
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가간섭성 시간
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