证明了连续信号传输算子的存在定理。
An existence theorem of continuous signal transfer operator is given.
我们用一系列固定间隔处的值代替连续信号。
We replace the continuous signal with a series of values at fixed intervals.
如何根据离散序列表示一个连续信号是一个基本问题。
Then how to represent a continuous signal in term of a discrete sequence is a fundamental problem.
讨论由随机微分方程描述的随机连续信号的辨识建模问题。
The modeling problem for stochastic continuous signals, described by stochastic differential equations, is discussed.
高频脉冲信号可能与回声定位有关,而低频连续信号可能与通信和情感表达有关。
High frequency pulsed sounds might be used for echolocation, and low frequency time continuous signals related with communication and emotive state expression.
传统的系统状态估计方法只用到连续信号,而离散测量信号所包含的信息没有得到利用。
While only continuous signals are utilized in traditional system states estimation approach, information contained in discrete measurements is ignored.
该滤波器通过处理输入离散采样信号获得连续信号并抑制谐波噪声,改进了过零测频方法。
The filter processes input discrete sampling signal to recover continuous signal and suppress harmonic noise, and the zero-crossing frequency measuring method is improved.
代表信号是DAQ设备通过高频率检查信号电平将连续信号离散化,以确保计算机能接受;
To represent these signals in your computer, the DAQ device has to check the level of the signal every so often and assign that level a discrete number that the computer will accept;
采样定理是采样过程中所遵循的基本规律,它指出了重新恢复连续信号所必需的最低采样频率。
In the course of the sampling, the sampling theorem is a basic rule and points out the least sampling frequency for reconstructing the signals.
从光的菲涅耳衍射、波前相位重构入手,对连续信号进行了离散化处理,给出了数值计算公式。
The formula of numerical computing is presented with discretion for Fresnel diffraction and phase numerical reconstruction of wave front.
为在计算机上做傅里叶级数的分解,需要对连续信号进行抽样,然后按离散傅里叶级数进行分解。
In order to analyzing digital signals with the aid of computers, it is necessary to use Fourier Series of discrete form.
鉴于对离散信号的抽取和对连续信号的采样非常相似,本文还把研究范围拓展到了对离散信号的抽取问题。
Since the decimation of discrete time signals is similar to the sampling of continuous signals, it is also studied in the thesis.
为了能够产生连续可调和稳定的脉冲信号,在分析连续信号产生原理的基础上,采用基于FPGA技术实现。
In order to produce stable and continuous adjustment impulse signal, it has been realized using FPGA based on analyzing the theory of continuous signal produce.
应用离散傅里叶变换dft,通过MATLAB实现对连续信号频谱分析,以满足理论分析和工程实际的需要。
Application DFT Discrete Fourier Transform, right through MATLAB continuous signal spectrum analysis, in order to meet the theoretical analysis and practical needs.
在讨论了连续信号循环频率的支撑区及循环矩支撑区的基础之上,给出了连续信号在时间离散化时不发生混迭的条件;
The supports of continuous-time signal's cyclic frequency and cyclic moment spectra are discussed, and the nonaliasing constraints have been established and discussed.
计算机将这些“连接点”排序并希望获得与原先是时间的连续信号十分相似的信号(因此我们将该信号称为代表信号)。
The computer then sort of "connects the dots" and, hopefully, gives you something that looks similar to the real-world signal (that's why we say it represents the signal).
该文从时域连续信号角度出发,按照高斯随机过程模型,分析了时钟抖动对基带和中频线性调频信号信噪比的影响并给出了近似公式。
Based on Gaussian random process model and continuous-time system in time domain, this paper analyzes the effect on baseband and intermediate frequency sampling due to clock jitter.
华盛顿贝尔维尤的法克托利亚大道上的交通信号通常不会连续两次闪烁相同时长的绿灯,尤其是在交通高峰期。
The traffic signals along Factoria Boulevard in Bellevue, Washington, generally don't flash the same length of green twice in a row, especially at rush hour.
在破晓时分的4:45分,宣礼塔就开始召唤虔诚的信徒祷告。这连续两天成为叫我起床的信号,这样我能在交通繁忙时刻到来以前尽可能多赶路。
Dawn broke at 4.45am with the Muezzins calling the faithful to prayer; and for two successive days this was my signal to get out of bed and try to get as far as possible before the rush hour began.
在近一个小时的连续呼叫测试中,语音质量良好,信号稳定,而EVDO的在线视频播放,数据平滑稳定。
During nearly one hour of continuous call testing, the voice service demonstrated good quality and stable signals, while the EVDO data service smoothly and steadily play online videos.
为了让投票连续五中断,事先要通过一个手势信号的共识,这个是每个人在整个会议过程都要用到的。
To make straw polling continuous, agree on a set of hand signals everyone will use throughout the meeting.
这些分析方法在故障诊断过程中起到了重要的作用,但傅立叶分析方法只适合于分析连续的、平稳的时域信号。
These analysis method in fault diagnosis process can play an important role, but Fourier analysis method is only suitable for analysis of the continuous, the steady time signal.
模拟信号是连续变化的;声波就是模拟信号的一个例子。
Analog signals vary continuously; an example of an analog signal is a sound wave.
这些信号的出现是因为他们不能连续的观测星星,如果他们进行24小时不间断观测,很多信号就会消失。
These signals, which show up because the telescope can't watch the star continuously, look like they could actually be planets, but they would disappear if we could observe round the clock.
代表输出中时间连续增量的各接触点,可以被看成是反转和未反转信号的扫描。
The contacts representing successive increment of time in the outputs can be looked upon as the sweeping of the reversed and unreversed signals.
在拥挤的高频频段,可用的连续带宽比较窄,基于连续谱信号体制的高频雷达的生存能力受到严重威胁。
In the highly crowded HF band, available continuous bandwidth is very narrow, this threaten the viability of HF radar based on the continuous spectra signal system seriously.
本系统最大的优点是可以方便地产生高精度的、能连续可调的延迟信号。
The most remarkable advantage of the system is that it can produce high-accuracy and continuously variable delay signals.
本系统最大的优点是可以方便地产生高精度的、能连续可调的延迟信号。
The most remarkable advantage of the system is that it can produce high-accuracy and continuously variable delay signals.
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