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单词 Sample time
释义

Sample time

原声例句
VOA慢速英语_科技

This makes the samples " time capsules" of events that happened before the solar system.

这使得这些样本成为太阳系形成前事件的" 时间胶囊" 。

连线杂志

So they'll sample the planet two times per day, once in the daytime, and then once in the nighttime descending.

所以它们每天会对地球进行两次采样,一次在白天,然后一次在晚上下降的时候。

可汗学院:统计学(视频版)

And then there's 43 times that I sampled a 1 in my sample population-- 43 times I sampled a 1, and the 1 is 1 minus 0.43 away from the mean because that is the mean, and I want to square that distance.

然后我在我的样本总体中对 1 进行了 43 次采样——我对 1 进行了 43 次采样,而 1 是 1 减去均值 0. 43,因为这就是均值, 我想对这个距离求平方。

中文百科

采样 Sampling (signal processing)

(重定向自Sample time)

在信号处理领域,采样是将信号从连续时间域上的模拟信号转换到离散时间域上的离散信号的过程,以采样器实现。通常采样与量化联合进行,模拟信号先由采样器按照一定时间间隔采样获得时间上离散的信号,再经模数转换器(ADC)在数值上也进行离散化,从而得到数值和时间上都离散的数字信号。很多情况下所说的“采样”就是指这种采样与量化结合的过程。

通过采样得到的信号,是连续信号(例如,现实生活中的表示压力或速度的信号)的离散形式。连续信号通常每隔一定的时间间隔被模数转换器(ADC)采样,当时时间点上的连续信号的值被表现为离散的,或量化的值。

英语百科

Sampling (signal processing) 取样

(重定向自Sample time)
Signal sampling representation. The continuous signal is represented with a green colored line while the discrete samples are indicated by the blue vertical lines.
The top 2 graphs depict Fourier transforms of 2 different functions that produce the same results when sampled at a particular rate.  The baseband function is sampled faster than its Nyquist rate, and the bandpass function is undersampled, effectively converting it to baseband.  The lower graphs indicate how identical spectral results are created by the aliases of the sampling process.

In signal processing, sampling is the reduction of a continuous signal to a discrete signal. A common example is the conversion of a sound wave (a continuous signal) to a sequence of samples (a discrete-time signal).

A sample is a value or set of values at a point in time and/or space.

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更新时间:2025/6/20 20:49:52