Random pulse width modulation technique can be used to distribute voltage harmonics over a wide frequency range and to realize the reduction of acoustic noise and vibration.
随机脉宽调制技术可以使逆变器输出电压的谐波成分均匀地分布在一个较宽的频率范围内，达到抑制噪声和机械振动的目的。
Also the filter has a wide frequency bandwidth.
该滤波器有很宽的带宽。
The high accuracy can be obtained by the method in wide frequency band.
此测量方法可以在一个较宽的频率范围内，获得较高的测量精度。
The vibration of engine is characteristic of wide frequency and multi-actuators.
发动机的振动具有宽频、多源的特征。
A developed linear VCXO with wide frequency deviation has acquired better results.
研制的宽频偏线性压控晶体振荡器取得了较好的结果。
Has a microphone with a single directivity and a wide frequency range.
频率范围宽的单指向性话筒，高质量的拾音效能。
This device has some advantages, such as low cost, wide frequency, high accuracy and etc.
它具有成本低，频率范围宽，测量精度高等特点。
Spread spectrum, frequency-hopped, which generates many codes over a wide frequency band.
它在很宽的频带上产生许多代码。
The noise from injection and bubbling has the character of wide frequency band and high noise level.
喷注与鼓泡产生的噪声具有频带宽、声压级较高的特征。
This paper introduces a method to generate square wave of high resolving power and wide frequency range.
介绍了一种高分辨率宽频域方波脉冲的产生方法。
Test results show that the signal power supply has good stability, wide frequency range and good performance.
实验结果表明本信号电源工作稳定、频率变化范围大，同时具有良好的动静态性能。
The selection of filter is controlled by software, so that low-noise signal can be acquired in a wide frequency band.
由软件控制选择滤波器，这样可以在很宽的频带获得低噪声的信号。
After measuring the transfer characteristic of the PT, the wide frequency model of the PT can be set up with the synthesis method.
当PT的传输特性被测量后，就可以利用该综合方法建立该PT的宽频传输模型。
This paper discusses the wide frequency and continuous adjustable highspeed and high order digital filter, as well as its implementation.
本文讨论了频率范围宽，连续可调的高速高阶数字滤波技术及其工程实现。
It has high value of practical engineering application with the advantages of simple circuit design, high sensitivity and wide frequency range.
电路设计简炼，灵敏度高，频率范围宽，具有较高的工程应用价值。
A method to realize a wide frequency-coverage frequency synthesizer with low spurious level and low phase noise level is proposed in this paper.
提出了一种实现宽覆盖、低相位噪声、低杂散的频率合成方法。
Based on the cross-power spectrum estimation, the algorithm has the advantages of lower complexity and better precision over wide frequency band.
该算法基于互功率谱估计，具有算法复杂度低、精确度高、适用频率范围广等优点。
Current mode theory enables design of super wide frequency band, super high speed analog switches by introducing circuit structures and principles.
采用电流模理论和电流模电路设计超宽频带、超高速度模拟开关。
This paper introduces the composition and working principle of single pulse tracking reception system for wide frequency-band spatial active target.
介绍了宽频带空间有源目标单脉冲跟踪接收系统的组成及其工作原理。
Booster compressor noise has the characteristics of wide frequency band, intense low frequency sound and considerably high total sound pressure level.
增压机噪声具有频带宽、低频声强烈，且总声级又相当高的特性。
Johnson noise is uniformly distributed over a wide frequency range, so reducing the noise bandwidth effectively decreases the noise in the measurement.
约翰逊噪声在很宽的频率范围内呈均匀分布，所以减小噪声带宽能够有效地降低测量中的噪声。
The network analyzer is a big test system that has wide frequency band, multi-parameters, real time test capability in frequency domain and time domain.
网络分析仪系统是一种宽频段、多参数、并能进行实时测量的大型频域、时域测量系统。
This paper introduces the designing and testing of the wide frequency multiple dimensional snubber as well as its application in the infrared line scanner.
本文介绍了一种宽频多维减振器的设计、制作和试验以及它在红外行扫仪中的应用。
The impedance characteristics of the cactus antenna are analyzed, and the principle of the cactus antenna working well over wide frequency band is explained.
用多端口网络理论分析该天线的阻抗特性，阐明该天线能够实现宽频带工作的原理。
The system uses a powerful transmitting circuit that transmits width-variable pulses, and a sensitive receiving circuit that offers quite wide frequency band.
该系统采用大功率、可变发射脉宽的发送电路，高灵敏度、宽带的接收电路，能实现快速、动态、高分辨率的采集和成像。
The serial product features include wide frequency band, low VSWR, high attenuation accuracy, small dimensions, high power, excellent capacity in anti-burnout etc.
该系列产品具有频率范围宽、驻波系数低、衰减精度高、体积小、功率大、抗烧毁性能好等特点。
It can not only measure DC current magnetic field but also alternative current magnetic field. This system has small volume, high capability, and wide frequency range.
本智能磁场测量系统既适合测量直流磁场，又可测量交变磁场，且体积小，性能高，适用频率范围宽。
The results show that with low loading level the metal coated CFF provides excellent EMS property in a wide frequency range due to its cavity structure and metallic coating.
研究表明：利用碳毡的孔洞结构和尺寸，辅之以金属镀层，能在较宽的频率范围内对电磁波有良好的屏蔽效率，且不需要很大的填充量。
The SS communication is a system that the spectrum of signal is spreaded in a wide frequency band when transmitted, and is recovered by the correlation reception when received.
扩频通信是指在发送端将信号的频谱扩展到一个很宽的频带上，在接收端通过相关接收，将信号恢复到信息带宽的一种系统。
The system USES the controllable and adjustable characteristics of stiffness and damping of maglev active vibration isolator to restrain the vibration in a wide frequency region.
系统利用磁悬浮主动隔振器刚度和阻尼可控可调的特点，对宽频域的振动能起到很好的抑制作用。
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