在线词典

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在线词典,是一款在线使用的中英文查词词典。本工具支持查询英文和中文单词及词组的含义,查询效率高、结果丰富,包括单词变体、常用短语、英英释义、同义词、同根词、词语辨析等,是外语学习者必备的在线查词工具。

spectral density

美:[ˈspektrəl ˈdensəti]查词链接:https://www.dute.org/dict/spectral_density复制链接
谱密度:在信号处理和统计学中,指定频率范围内信号功率的分布密度。
查看英英释义
abstract:
In statistical signal processing, statistics, and physics, the spectrum of a time-series or signal is a positive real function of a frequency variable associated with a stationary stochastic process, or a deterministic function of time, which has dimensions of power per hertz (Hz), or energy per hertz. Intuitively, the spectrum decomposes the content of a stochastic process into different frequencies present in that process, and helps identify periodicities.

网络释义
谱密度
...谱密度; [gap=1164]andom quantum Ising model;recurrence relations method;spin correlation function;spectral density; ...
谱线密度
... density meter密度计,密度表... spectral density谱线密度 vapor density蒸汽密度 ...
频谱密度
... 频谱交错 frequency interlace; 频谱密度 spectral density; 频谱扫调附加器 panoramic adapter; ...
常用短语
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* 以上查询结果来自于网络,仅供参考。
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