以矢量方式控制电机、传感器的采样信号。
Sampled datum of motor and sensor are processed with vector.
方法分析了带通采样信号的频谱和规律,导出了低速采样频率的选取公式。
MethodsAnalyze spectrum of the sample signal and propose the formula of common sample frequency in low speed.
针对电力系统采样信号,提出一种采用不同采样频率的广义形态滤波方法。
A generalized morphological filtering method using different sampling frequencies is proposed for sampled power system signal.
采样信号上的每一个数据点(一个小方块)图10.23代表这一次模数转换。
Each data point (represented by a square) on the sampled signal in Figure 10.23 represents one analog-to-digital conversion.
本文根据通常的DFT处理,研究出一种适用于不等间隔采样信号处理的方法。
A method for processing unequally spaced samples, derived from conventional DFT, is presented.
通过DDS芯片AD9851来产生相对于输入信号64倍频的高精度采样信号。
Through the DDS CMOS chip AD9851, the system produces a 64 points sampling signal.
实验结果表明,该方法能够有效地消除采样信号中的噪声,进而提高扭矩值的计算精度。
Experimental results show that the method is able to kill the noise effectively in sampled signals and then to improve the computational accuracy of torque value.
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.
对中空电热辊温度采用非接触性采样,将采样信号反馈到调节仪表,组成了自动调节系统。
The spatial contact roller USES the non-contact sampling, and the sampling signal feeds back to the regulation meter. And the regulator system was composed.
提出在传统的择大判决法的基础上,用多码元累加方法对中频采样信号直接进行同时解扩解调。
A new algorithm based on the traditional maximum-selection method is proposed. This method despreads and demodulates the IF sampled signal simultaneously by multi -symbol accumulation.
全波傅氏算法是基于周期信号推导出来的,当采样信号中含有衰减直流分量时,将会产生误差。
The decaying DC component in the sampling signal will bring errors to the full-wave Fourier algorithm, which is derived with periodic signal.
利用这一概念选取合适的采样参数对测量信号进行采样,可实现采样信号同待测信号相位相关。
Selection of proper parameters on the basis of this conception to sample the signal can realize the phase correlation between the sampling signal and the measured signal.
根据设备系统噪声及量测噪声的统计特性,对采样信号运用卡尔曼滤波技术,提高了测量精度。
By measuring equipments' noise and estimating its value through Kalman filter, the accuracy of the equipments was effectively enhanced.
等效采样技术是一个经济且行之有效的选择,进行等效采样的前提是被采样信号必须是周期信号。
At the same time, the expense of the system based on parallel process technology is high, while equivalent sampling technology is economical and effective.
该方法用数字差分滤波对采样信号进行处理,提高了信号中的定时分量,从而加快了算法的收敛速度。
In this algorithm, the digital differential filtering (DDF) is used to process the sampled signals, the timing component of signal is improved, and therefore the convergence speed is quickened.
通过对红外水分仪实际采样信号的滤波试验,并与一般平均滤波算法相比较,证明其具有更好的滤波效果。
Through the filter experiment on the actual sampling signal, and compares with the common average filter algorithm, it proved the wavelet analysis algorithm has better filter effect.
在进行超声波传播时间检测前,对采样信号还进行了数字滤波算法以更好的消除噪声影响,提高检测精度。
Before test the ultrasonic propagation time, we also use the digital filtering algorithm in the sampled signal to better eliminate noise and improve accuracy.
通过过采样方法处理后的采样信号,使动态轴重式汽车衡在保证其称量达1%精度时,提高称重过车速度。
By choosing sampling signals by the way of the over-sampling, the metrical speed of dynamic automotive metrical can be increased when holding the accuracy of weigh-in-motion within 1%.
提出了一种通用性强、适用于广义平稳随机过程非均匀采样信号谱分析的新方法——采样间隔统计分析法。
A new method, the sampling interval stat. analysis method, was set up to analyze the non-uniformly sampling signal of the wide-sense stationary random processes.
本文提出限幅滤波和中值滤波、均值滤波相结合使用的方法,并提出如何确定数字滤波器采样信号的采样间隔。
This paper presents the using methods of combing limit range filter with middle value filter and average value filter and how to determine the sampling interval of the digital filters.
本系统采用了AT 91rm 9200作为主控芯片,并实时将采样信号传输到PC工作站,供PC工作站分析。
It USES AT91RM9200 as its main control chip, and transmits vibration signal to the PC work station which analyses the signal in real time.
文章介绍了一个港口门机故障检测系统,着重讨论了在采样信号预处理的基础上,通过规则推理进行故障分析的方法。
This paper introduces a fixed crane faults diagnosis system used in port, and focuses on the method of inferring rule based on the pretreatment of sampling signal.
在一个采样时间不固定,且采样信号带有噪声的应用实例中,采用变步长的跟踪微分器加预报的方法得到了较好的结果。
In a practical example, a good result is obtained by the adoption of step-varying TD and predicting under the condition of sampled signal with noise and sampled time varying.
在一个采样时间不固定,且采样信号带有噪声的应用实例中,采用变步长的跟踪微分器加预报的方法得到了较好的结果。
In a practical example, a good result is obtained by the adoption of step-varying TD and predicting under the condition of sampled signal with noise and sampled ti...
采用快速傅立叶变换(FFT)进行电力系统谐波分析时,需要对采样信号截断并离散化,从而导致频谱泄漏和栅栏效应。
Fast Fourier Transform (FFT) is inevitable to cause the spectrum leakage and fence effect because of truncation and discreteness in signal collection.
设计了以C8051F 060混合信号微控制器为核心的全数字信号检测系统,实现其采样信号和调制信号的相位关系保持。
An all digital signal detecting system using C8051F060 as its core was completed. It can maintain the phase relation of sampling signal and modulating signal.
本文首先得到了均匀冲激串采样信号的FRFT,然后在此基础上导出了FRF T域上带通信号和低通信号的采样定理和重构公式。
In this paper, we first obtain the FRFT of the uniform impulse-train sampled signals, and based on it, we deduce sampling theorem and reconstruction formula for bandpass and lowpass signals with FRFT.
采样保持电路设计采用了电容下极板采样技术,不仅有效地避免了电荷注入效应引起的采样信号失真,而且消除了时钟馈通效应的不良影响。
The sample and hold circuit is employed by the bottom plate sampling technique, which could not only cancel the charge injection error but also eliminate the effect of clock feed-through.
介绍了用滤波器组重构多阶采样信号的原理,并且利用多阶采样特殊的重构原理以及在降低采样率上的优势,介绍了多阶采样在频率选择上的应用。
By using the special reconstruction principle and the superiority in decreasing sampling frequency, the application of periodically nonuniform sampling in frequency selection is also presented.
通过沿时间轴对采样信号加窗的方式构造向量集合,利用余弦相似度进行向量间亲合度的匹配计算,实现在实数域进行匹配计算的实数值负向选择算法。
The matching affinity between two vectors was measured using cosine similarity to develop a real-valued negative selection algorithm with the matching calculation in the real domain.
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