1) periodically nonuniform sampling
周期非均匀采样
1.
In periodically nonuniform sampling,the sampling rate for a single sampling channel is usually less than the Nyquist rate and accordingly the spectrum of each sample stream is aliasing.
对于周期非均匀采样,由于每个均匀采样流的采样率通常都是小于Nyquist率的,因此,采样信号频谱中会发生频率混叠。
2.
It provides a theoretical guidance for a valid periodically nonuniform sampling.
从采样信号中完全重建原信号的条件为基础,推导了周期非均匀采样的最低采样阶数NM与其单通道采样率fs需要满足的关系,给周期非均匀采样的有效应用提供了理论指导。
2) nonuniform cyclic sampling
非均匀周期采样
3) periodic nonuniformly sampling
周期性非均匀采样
1.
However,the periodic nonuniformly sampling caused by the time skew decrease the ADC system performance,so decreasing the effections of the nonuniformly sampling will promote the development of the time-interleaved ADC system.
并行交替技术可以极大地提高ADC系统的采样率,但是采样时间偏差造成的周期性非均匀采样严重地降低了系统的性能,消除非均匀采样的影响,对并行交替式ADC系统发展具有积极的推动作用。
4) equalized sampling
周期等分均匀采样
5) nonuniform sampling
非均匀采样
1.
When two signals are sampled by nonuniform sampling,and the amplitude of one signal is above 10% smaller than that of the other,the weak signal cannot be detected from the mixed signal′s spectrum because of sampling′s fake-randomicity.
非均匀采样可以在对模数转化器件的采样频率要求较低的情况下,提取超出Nyquist采样定理限制的频率。
2.
In this paper, the conception of nonuniform sampling of wave-number-limited fonctions in N-dimentional euclideen space is discussed Insert functions and insert formulas of N-dimentional periodical nonuniforms sampling are deduced sampling laws of N-dimentional periodical nonuniform sampling are prove
介绍了Ｎ维欧氏空间波限函数非均匀采样的有关概念，推导了Ｎ维周期性非均匀采样的内插函数和内插公式，证明了Ｎ维周期性非均匀采样的采样定理。
6) nonuniformly sampling
非均匀采样
1.
A method to evaluate the sampling uniformity is presented,it deals with the nonuniformly sampling data acquisition systems.
该方法可以用来评价非均匀采样系统的采样均匀性。
2.
In order to reduce the computational quantity of the processing of the LFM signal in fractional Fourier domain and to meet the real-time request,a new nonuniformly sampling method is proposed.
为了减少分数阶Fourier域线性调频(LFM)信号处理的计算量,满足实时性要求,提出了一种新的非均匀采样方法。
补充资料：采样周期
分子式：
CAS号：
性质：在周期性测量过程变量(如温度、流量……)信号的系统中，相邻两次实测之间的时间间隔。离散控制系统(包括计算机数字控制系统)都采用周期性测量方式，采样间隔之内的变量值是不测量的。如采样周期过长，将引起有用信号的严重丢失，使系统品质变差。反之，如采样周期过短,则两次实测值的变化量太小，亦不相宜。采样周期的选择甚为重要，一般取为回复时间(即大体上达到稳态所需时间)的十分之一左右。
CAS号：
性质：在周期性测量过程变量(如温度、流量……)信号的系统中，相邻两次实测之间的时间间隔。离散控制系统(包括计算机数字控制系统)都采用周期性测量方式，采样间隔之内的变量值是不测量的。如采样周期过长，将引起有用信号的严重丢失，使系统品质变差。反之，如采样周期过短,则两次实测值的变化量太小，亦不相宜。采样周期的选择甚为重要，一般取为回复时间(即大体上达到稳态所需时间)的十分之一左右。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条