基于三电平技术并结合脉冲变压器设计了一个脉冲变换器,并将其用于非热处理灭菌过程。
An impulse converter based on the three-level technology was discussed, which used the up to date power electronic technology and the traditional impulse transformer technology.
但是有一个标示却让我颇为迷惑,于是我叫过销售商,问道:“‘混合脉冲D/A变换器’是什么意思?”
One designation had me puzzled, though, so I called over a salesperson and asked, "What does 'hybrid pulse D/A converter' mean?"
对IIR的脉冲响应不变法、阶跃响应不变法、双线性变换法和直接设计法进行研究,得出IIR难以满足要求的结论。
For IIR, after researching Pulse Response Method, Step Response Method, Bilinear Transform Method, Direct Design Method, it is found that IIR is unsatisfactory.
用傅里叶变换的方法分析了锁模激光器中模式间的相位和振幅涨落对锁模脉冲列特性的影响。
The Fourier transform method has been used to analyze the influence of modal amplitude and phase fluctuations in a mode-locked laser on performance of its output pulse.
文中变换放电能量和放电次数进行了有限次脉冲放电研究。
Limited continuous pulse experiment is taken with changing the discharge energy and the discharge times.
本论文主要是关于飞秒激光脉冲傅里叶时空变换整形的理论研究。
This paper is mainly on theoretical research of femtosecond laser pulse Fourier space-time transform shaping.
本文综合介绍了方块脉冲函数及其变换。
This paper summarizes the block pulse functions and transform.
针对电能质量扰动信号的特性,本文采用小波变换对电力系统的高频、瞬时脉冲、电压切痕扰动信号进行检测。
According to features of power quality disturbance signal, this paper detects the disturbance signals of high-frequency, transient impulse and voltage notch with wavelet transforming.
本文提出一种利用ZAK变换及优化的升余弦滚降滤波器设计的OFDM/OQAM系统时频局域优化脉冲成形滤波器。
The discrete ZAK transform and Raised cosine FIR filter are used to design time-frequency well-localized pulse shaping filters for OFDM/OQAM systems.
利用角谱分析和傅里叶变换的方法,得到一种描述几个周期的等束腰宽度脉冲光束传输的脉冲修正方法。
By use of the angular-spectrum analysis and the Fourier transform method, a correction method is obtained to describe the propagation of few-cycle pulsed beam with constant beam waist.
为了克服噪声对超声检测成像质量的影响,利用离散二进制小波变换的分解重构算法来降低脉冲噪声的干扰,提高超声图像的信噪比。
To overcome pulse noise influence to image quality, discrete dyadic wavelet transform (DDWT) is used to reduce the noise influence and improve signal to noise ratio (SNR).
改进的PRI变换法克服了直方图统计法的子谐波问题,对脉冲重复间隔具有很高的估计精度,且具有一定的抗抖动能力。
The improved PRI transform estimates PRI with high precision, overcomes the sub-harmonic problem produced in the histogram methods, and has a better performance on anti-jitter.
利用中值滤波和基于小波变换的去噪声处理对同时含有高斯噪声和脉冲噪声的X线图像降噪方法进行探讨。
This paper evaluated median filter in company with wavelet transformation to process X-ray image that contained Gauss noise and impulse noise at the same time.
单片机是根据图像处理部分送来的雾滴等级给pwm变换器送不同占空比脉冲来实现对喷头电机进行调速的。
The single chip adjust the speed of sprayer though send the pulse to PWM depend on fogdrop grade sended by image processing system.
针对同一场景多聚焦图像的融合问题,提出了一种基于小波变换的自适应脉冲耦合神经网络(PCNN)图像融合方法。
Concerning the fusion problem of multi-focus image with the same scene, an algorithm of image fusion based on wavelet transform and adaptive Pulse Coupled Neural Network (PCNN) was proposed.
在系统脉冲能控的条件下通过系统输入-状态对的非奇异变换,把此问题等价地转化为正常状态空间系统的相应问题。
When the system is impulsively controllable, an equivalent problem for standard state space systems is derived from nonsingular transformation of input-state for systems.
研究了用滤波器产生变换限制脉冲的方法,导出了获得变换限制脉冲所需的滤波器优化带宽。
The method of generating transform limited pulse using filter is analyzed, and the optimal bandwidth of the filter required to get transform limited pulse for given optical source is obtained.
在实验上又通过一个放大-色散系统实现对此染料激光脉冲的同步放大和调谐,并达到傅里叶变换极限。
Furthermore, the synchronous amplification and tuning of the dye laser pulse have been achieved with a dye amplifier-dispersion system, and reached almost Fourier-transform limit.
此变压器可用于低阻抗陶瓷脉冲形成线输出端的阻抗变换。
This transformer can be used to realize the output impedance transformation of the ceramic pulse forming line with low characteristic impedance.
文中讨论基于脉冲重复间隔(pri)的脉冲分选算法,深入分析了基于直方图统计算法和PRI变换算法的优缺点,并对算法进行计算机仿真。
In this paper, methods of sorting of radar pulses based on PRI are discussed. The histogram statistics algorithms and PRI transfer algorithm are analyzed and simulated.
在提出脉冲提取思想的基础上,利用局部放电信号所固有的奇异性特征,将小波变换的奇异性检测原理应用于提取局部放电脉冲。
A wavelet domain singularity detection algorithm, based on the theory of pulse extraction, is applied in partial discharge (PD) pulse extraction utilizing the singularity of PD signal.
根据冲击型探地雷达的原理,窄脉冲发生电路是探地雷达的一个重要的基本单元电路,它是组成脉冲发射电路和取样变换电路的重要组成部分。
According to the principle of impulse GPR, the short pulse generator is an important basic circuit of GPR, it is an important part of radiation excitation and sampling circuit.
用黎卡堤变换研究如下二阶非线性脉冲微分方程( 方程式略)得到了两个判断方程振动的充分条件。
Oscillation of a kind of second order nonlinear differential impulsive equation(The equation is abbreviated), is studied and some sufficient conditions are obtained.
电路输出可以作为标准信号,用来校准医用微分器,作生理电脉冲波形变换的研究。
The output of the oscillator can be used as a standard signal for calibration of the differentiator to employ in research on the transformation of physiological pulse wave forms in medical science.
通过对脉冲MIG焊的具体分析,对BUCK变换器中的相关控制方法在弧焊逆变器中应用的可行性和存在的困难进行了讨论。
By the detail analysis of pulse MIG welding, the possibility and the question in the relative control method of BUCK inverter to be used in arc welding inverter are discussed.
表示常规变换器。可指定变频器或脉冲反相器。
Represents a general changer. Frequency changer or pulse inverter can be specified.
电流型四象限变流器是一种脉冲宽度调制的交直流变换装置,具有功率因数高、谐波电流小、再生方便等优点。
Currcnt-type four quadrant converter is an AC-DC converting device with pulse width modulation, whose advantages are high power factor, low harmonic current and convenient regeneration etc.
该脉冲是近变换极限脉冲。
研究用一种中频采样和数字信号正交变换理论实现脉冲多普勒雷达信号正交采样的新技术。
The non-ideal characteristic of intermediate frequency signal is unfavorable for band-pass sampling and affects the performance of quadrature transform.
研究用一种中频采样和数字信号正交变换理论实现脉冲多普勒雷达信号正交采样的新技术。
The non-ideal characteristic of intermediate frequency signal is unfavorable for band-pass sampling and affects the performance of quadrature transform.
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