Because of stepless frequency modulation and amplitude modulation and operating with facility, hydraulic vibrators are being used widely in a lot of engineering machines.
液压激振器由于具有无级调频、调幅和操作方便等优点而在许多工程机械中得到广泛应用。
As a backbone of the Northwest power Network, Liujiaxia Hydropower Plant plays the roles of generate electricity, peak modulation, frequency modulation and voltage modulation.
刘家峡水电厂在西北电网中主要承担发电、调峰、调频和调压任务，是西北电网的骨干电站，在西北电力系统中处于十分重要的地位。
Therefore, the tuner is essential to the frequency modulation radio.
所以调频收音机中的频率调谐器是至关重要的。
This thesis studies and designs a wireless interphone of frequency modulation.
本论文研究设计了一款调频无线对讲机。
This paper studies the design methods of the nonlinear frequency modulation signal waveform.
研究了非线性调频信号波形设计方法。
The realization and test of primary frequency modulation function for 330mw units are discussed.
对某发电厂330MW机组一次调频功能的实现及试验情况进行了研讨。
Based on modulation domain analysis, a frequency modulation parameter testing method is proposed.
基于调制域分析，设计了电子产品频率调制参数测试方法。
The performance for the frequency modulation of electrical feedback optical transmitters is presented.
本文研究了电反馈光发射机的频率调制特性。
The fundamental principle of sub-carrier frequency modulation used for FBG array interrogation is analyzed.
分析了副载波调频技术用于光纤光栅阵列查询的基本原理。
One application of CPLD in the measuring system of using frequency modulation displacement sensor is introduced.
介绍了CPLD在调频式位移传感器测量系统中的一种应用。
Through proper adjustment to frequency modulation amplitude, the Kerr-effect-induced bias can be effectively reduced.
通过适当调节两光束的频率调制幅度，可有效地实现克尔效应误差的消除。
Broadband noise frequency modulation signal with high precision is commonly used in modern electronic interference system.
宽带高精度的噪声调频信号在现代电子干扰系统中应用广泛。
The high frequency modulation characteristics of GaAs-GaAlAs DH LBDs are analyzed and the results (data and curves) presented.
分析了器件的两种高频调制特性，给出了测量结果——数据和曲线。
This paper analyses the frequency characteristics of the gear meshing and the signals due to amplitude and frequency modulation.
本文分析了齿轮传动的频率特性和它所产生的频率和幅值调制信号。
The algorithm clearly displays the frequency modulation law of the nonlinear frequency modulation chirp signals at the same time.
同时清楚地展示了非线性调频信号的频率调制规律。
In order to resolve source shortage of television tower, adopting frequency modulation and television multi-channel with total tower.
为了解决发射塔资源短缺问题，可采用调频和电视多频道共塔技术。
The temporal coherence of diode laser was studied by using linear frequency modulation technique with simple, experimental apparatus.
利用半导体激光器线性调频技术，研究了半导体激光器的时间相干性。其实验装置结构简单。
The system adopts AGC circuit, uses DDS technology to realize such functions as frequency modulation, amplitude modulation, ASK, PSK, etc.
系统采用自动增益控制电路，并运用DDS技术实现调频、调幅，ASK、PSK等功能。
Have designed the frequency modulation circuit in the CIC-CPPFC electronic ballast circuit, which would decrease the crest factor of circuit.
设计了用于电流输入连续型电荷泵功率因数校正电子镇流器的调频电路，以减小电路的峰值系数。
The small signal analysis for high frequency modulation characteristics of specific wavelength laser diode with narrowband filter was presented.
采用窄带滤光片作为选频元件对精确波长激光器高频调制特性进行了小信号分析。
Traditionally, DSP only concerns in source coding as well as channel coding, but today, it begins to set foot in radio frequency modulation field.
信源编码，信道编码是DSP在通信信号处理中的传统经典应用，而如今DSP已深入射频调制部分。
The influence of Kerr effect to close-loop digital resonator fiber optic gyroscope based on square-wave frequency modulation was analyzed in theory.
对采用方波频率调制数字闭环谐振型光纤陀螺中克尔效应的影响进行了深入的理论分析。
A heterodyne interference is caused by a frequency modulation of a laser diode (LD) with a ramp injection current, and a linear phase detection is realized.
传感器利用注入结电流直接调频的半导体激光(LD)产生外差干涉，从而实现了干涉相位的线性检测。
The theory of AC frequency modulation for motor speed regulation technology, its applied procedure and actual effect in dedusting fan of converter are stated.
介绍了交流变频调速技术的原理、在转炉除尘风机上的实施过程和使用效果。
The7years 'applicable practices indicate that the frequency modulation technology with dc bus voltage ripples is very effective to suppress acoustic resonances.
7年的使用实践表明，直流脉动电压频率调制技术对抑制声谐振现象十分有效。
AM radio can be sent over larger distances, but the quality of the sound is not as good as a later kind of radio signal processing, called frequency modulation.
调幅广播可以发送更远的距离，但它的声音质量却不及后来一种被称为频率调制的无线电信号处理方式优越。
Ionospheric frequency modulation causes spreading of the surface clutter in Doppler domain which greatly limits the detection performance of HF sky-wave radars.
电离层频率调制导致地表面杂波的多谱勒展宽，极大地限制了高频天波雷达的目标探测性能。
This paper presented a new counter-countermeasure method, known as two way anti frequency coherent method, to counter the noise frequency modulation disturbance.
该文针对接近白噪声的小指数调频干扰提出一种新型反干扰的方法：两路倒频相关法。
According to the frequency modulation function mode, this paper proposes to design the nonlinear frequency modulation (NLFM) signal using the data fitting method.
根据调频函数模型，提出利用数据拟合的方法设计非线性调频信号。
According to the frequency modulation function mode, this paper proposes to design the nonlinear frequency modulation (NLFM) signal using the data fitting method.
根据调频函数模型，提出利用数据拟合的方法设计非线性调频信号。
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