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加勒比海怪

新虫 (小有名气)

[求助] 求帮忙解释一下什么是慢变振幅近似和慢变包络近似

可不可以帮忙解释一下慢变振幅近似和慢变包络近似,有点不理解,谢谢各位了

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加勒比海怪

新虫 (小有名气)

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2楼: Originally posted by sspa9999 at 2020-03-10 02:19:32
似乎是一个东西:In?physics, the?slowly varying envelope approximation?(SVEA, sometimes also called?slowly varying amplitude approximation?or?SVAA) is the assumption that the?envelope?of a forward-tra ...

好的,谢谢了,抱歉这么晚才回复

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3楼2020-04-22 21:08:24
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sspa9999

至尊木虫 (著名写手)

似乎是一个东西:In?physics, the?slowly varying envelope approximation[1]?(SVEA, sometimes also called?slowly varying amplitude approximation?or?SVAA) is the assumption that the?envelope?of a forward-travelling?wave?pulse varies slowly in time and space compared to a?period?or?wavelength. This requires the?spectrum?of the signal to be?narrow-banded—hence it also referred to as the?narrow-band approximation.

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2楼2020-03-10 02:19:32
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