|
|
|
 |
|
|
|
|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
In the early 1960s research into radar signal synthesis produced important formulas describing the action of the two-dimensional Fourier transform on auto- and crossambiguity surfaces.
|
| 例句来源 | |
It is shown that the one-dimensional sampling sets correspond to Bessel sequences of complex exponentials that are not Riesz bases for $L^2[-R,R].$ A signal processing application in which such sampling sets arise naturally is described in detail.
|
| 例句来源 | |
Given a bandlimited signal, we consider the sampling of the signal and some of its derivatives in a periodic manner.
|
| 例句来源 | |
We present a method for finding the dual frame and, thereby, a method for reconstructing the signal from its samples.
|
| 例句来源 | |
We show that if no sampling of the signal itself is involved, the sampling is not stable and cannot be stabilized by oversampling.
|
| 例句来源 | | 更多 |
|
They are potential tools for the decomposition and handling of signals that, like speech or music, seem over short intervals to have well-defined frequencies that, however, change with time.
|
| 例句来源 | |
Multiresolution Analysis and Multivariate Approximation of Smooth Signals in CB(Rd
|
| 例句来源 | |
Frame Analysis of Irregular Periodic Sampling of Signals and Their Derivatives
|
| 例句来源 | |
Unique reconstruction of band-limited signals by a Mallat-Zhong wavelet transform algorithm
|
| 例句来源 | |
The radar ambiguity function plays a central role in the theory of radar signals.
|
| 例句来源 | | 更多 |
|
Alpha2-Adrenergic Receptors in Intestinal Epithelial Cells: Mechanisms of Signaling, Role, and Regulation
|
| 例句来源 | |
Alpha2-Adrenergic Receptors in Intestinal Epithelial Cells: Mechanisms of Signaling, Role, and Regulation
|
| 例句来源 | |
Sef is a transmembrane protein inhibiting FGF signaling.
|
| 例句来源 | |
The results suggested that ZNF569 protein might act as a transcriptional repressor in MARK signaling pathway to regulate cellular processes.
|
| 例句来源 | |
The aim of this research was to explore the effects and signaling pathway of ultraviolet-B (UVB) irradiation on the expression of hypoxia-inducible factor 1α (HIF-1α) and transferrin receptor (TfR).
|
| 例句来源 | | 更多 |
|
|
|

| | In ordinary sampled-data control systems the system response to a step input can reach its equilibrium state only within n or more sampling intervals (n is the order of the controlled plant). In this paper multiple-impulses are used, instead of ordinary simple impulses, to speed up the system response. In such sampled data systems the system response to step input can reach its equilibrium state within less than n, even one, sam-pling intervals. Methods of design of such kind of sampled-data systems and the... | | 在通常的脉冲控制系统中,当输入信号是阶跃函数时,系统的过渡过程至少在n个采样周期内才能完全结束(n是控制对象的阶数).文中考虑了采用宽度不等的多拍脉冲代替通常的单拍脉冲以加快系统的过渡过程.在采用多拍脉冲以后,系统的过渡过程可以在少于n个采样周期内,甚至在一个采样周期内完全结束.文中叙述了这种脉冲系统的综合方法,也讨论了系统中有关组成部分——脉冲组成器和校正装置——的构成方案及其参数的计算方法.最后并考虑了由于时滞引起的对系统动态特性有害影响的补偿问题.文中举有例题,对文中各节内容作必要的说明. | | 文摘来源 | | In this paper the logical structure of contactless telemechanical system for distributed objects is discussed. A simple method of variable system structure for transmitting and receiving telemechanical information is adopted. The idea is that the information oc-curred in every controlled point (station) and the information of some of those objects,which frequently change their states, are transmitted continually and cyclically, while for other objects their information is transmitted only after any change i... | | 本文研究了无触点集中-分散目标远动系统的逻辑结构.文中提出了采用简单的系统变结构来发送和接收信息的逻辑结构方式.对被控制点及一部分比较重要或变化比较频繁的被控制目标的信息,保留了循环传送,而对大部分变化比较慢的被控制目标则采用目标有变化时才传送信号的方式,这样就提高了系统的平均动作速度,同时也减小系统的失步概率.文中采用环节的复合利用及简化的逻辑单元线路来实现这种系统的逻辑结构.例如用两个分配器和一个简单的逻辑单元“和”线路组成了很简化的选点自动程序编码器,同时这两个分配器又复合利用兼组成目标信号接收矩阵式分配器等,因而可以使得这种系统同时又具有较高的极简化度. | | 文摘来源 | | 1. An X-band E. S. R. spectrometer has been constructed. Its sensitivity is such that 3×10~(-8) mole of DPPH can be detected by oscilloscope with S/N=15/1. The five byperfine structure lines of 5×10~(-4) M/1 DPPH benzene solution have been resolved. | | 1.制成波长为3.2厘米的低頻和高頻双重調場的波譜仪;示波器的灵敏度为3×10~(-9)克分子DPPH,其分辨本領約为1高斯。 2.微波系統用反射式和传輸式相結合的装置,反射系統用于晶体視頻接收和調諧监。视,传输系統用于接收高頻信号和頻率自动稳定信号,能方便調整仪器至工作状态。 3.利用单线圈伸入H_(011)型圓柱形共振腔的方法,只需低功率的高頻調場,并能避免高功率高頻調場的干扰。 | | 文摘来源 | |   | | << 更多相关文摘 |
|
相关查询: | |
对查询结果不满意
|
|
|
|