随着正弦波频率增加岩石的滞回圈频散效应增强，饱和液体加强了这种频散作用。
When the frequencies of the sine waves increase, the frequency dispersion of the hysteresis loops of the rocks is strengthened. This effect is also intensified with the saturation fluids.
自适应IIR陷波器在许多不同的信号处理场合，尤其在估计淹没在噪声中的正弦波频率方面得到广泛应用。
The Adaptive IIR notch filter has been widely used in many signal processing applications, especially in the estimation of the sinusoid component with unknown frequency buried in noise.
现实中的信号由各种频率的正弦波组成，因此，在有限的波长数后，它们会干涉相消，你就得到一个有限宽度和有限延续的信号。
Realistic signals are made by summing sine waves of lots of frequencies, so that after some finite number of wavelengths they interfere destructively and you get a signal of finite width and duration.
本发明电路结构简单，输出的交流电的波形为纯正弦波，输出的电压和频率稳定，不会随输入电压和负载的变化而变化。
The circuit of the invention is simple, the wave output is pure sine wave, voltage and frequency output is stable, they do not change with input voltage and load.
在相同电压及频率下，方波信号激励下的输出灵敏度最大，其次为正弦波，锯齿波最小。
With the same voltage and frequency, bar signal has the highest sensitivity and next the sine, the least sawtooth.
系统采用直接数字合成（DDS）技术构建正弦波发生器，实现幅值、频率、相位等连续调节；
The system adopts direct digital synthetic (DDS) technology for building the sine wave generator to realize continuous regulation of amplitude, frequency and phase modulation.
它不仅可以测量正弦波、方波、三角波、尖脉冲信号和其他具有周期特性的信号的频率，而且还可以测量它们的周期。
It can measure not only the sine wave, square wave, triangle wave, a sharp pulse but also can measure other characteristics of the signal wave.
提出一种新的自适应算法估计被噪声污染的正弦波信号的频率，依据IIR窄带滤波器和自适应FIR滤波器的级联，形成快速有效的自适应算法。
In this paper, based on a narrow IIR BPF cascaded by an adaptive FIR filter, a novel fast adaptive algorithm for sinusoid frequency detection in noisy environment is depicted.
在正弦风切变假定下，利用计算机计算和飞行模拟器模拟研究了长周期振动频率上下的正弦波风切变对飞机着陆航迹的影响。
On the assumption that the wind shear is sinusoidal, the effects of long periodic oscillation on the landing path of an aircraft were studied by computer calculation and with flight simulator.
这个电路以最简洁的结构实现了高纯净度正弦波输出，而且在较低的频率上也是如此。
This circuit provides high purity sine-wave output down to low frequencies with minimum circuit complexity.
您应该避免使用过于安静的声音，听起来缺乏高频率，或者简单的音调像一个正弦波哔哔声。
You should avoid using overly quiet sounds, sounds lacking in high frequencies, or simple tones like a sine wave beep.
正弦波输出，失真小，稳定性好，频率范围覆盖整个音频范围。
Sine wave output, low distortion and high stability, frequency range over with whole audio range.
本文实现了利用数字方法计算正弦波的频率稳定度。
This paper gets the frequency stability of a sine wave using a digital method.
调制的方法主要是通过改变正弦波的幅度、相位和频率来传送信息。
Modulation methods primarily through changes in the rate of sine wave, phase and frequency to transmit information.
利用正弦波作为输入信号时，测出了此驱动电路的频率响应范围。
When sinusoid signal is inputted, we measured the frequency response range of this circuit.
结果表明：方波和正弦波调幅磁场的感应热功率都与调幅波频率无关。
The results show that the induction heat power of magnetic field amplitude-modulated with sine wave and square wave is unrelated to the frequency of modulating wave.
该电源输入单一交流电压和频率，内部经过交流对直流；直流对交流的变流整流转换后，自行产生-非常稳定纯净的正弦波。
The single AC power input voltage frequency, the internal AC to DC after; DC converter rectifier exchange conversion, self-produced - very stable, pure sine wave.
设计要求：(1)能够输出锯齿波，三角波，正弦波，脉冲波。(2)能根据键盘命令进行波形之间的切换。(3)能对输出的波形频率进行调节。
Design requirements: (1) can output sawtooth, triangle wave, sine wave, pulse wave. (2) according to the keyboard command to switch between waveforms. (3) can adjust the output waveform frequency.
该系统采用8031单片机进行控制，根据控制命令可发出不同时间间隔、不同时间长度、不同频率的标准正弦波信号。
The system is controlled by chip microprocessor 8031 and can transmit standard sinusoidal waves with various frequencies and arbitrary time intervals according to various requirements.
要分析电网的暂态特性，还必须考虑衰减直流分量和衰减正弦波，以及电压缺口和频率偏移等问题。
Such problems as the attenuation of DC elements and Sine waveform, voltage sag and frequency deviation should be taken into account in order to analyze the transient process in the power system.
使用一个周期的正弦波曲线模型的滑动拟合法，评价了幅度、频率、直流偏移的抖动，以及相位与理论值之偏差的抖动情况。
By using moving one period sine wave model, the jitters of amplitude, frequency, phase, and offset of sine wave are evaluated.
正弦波检查法因条件所限，无正弦波发生器或频率不准，不易实现。
The sine wave inspection method is limited by condition, does not have the sine-wave-generator or the frequency is not precise, is not easy to realize.
有些正弦波谐波，其频率不等于频率的基本组成部分。
Some sine waves are harmonic whose frequency does not equal to the frequency of fundamental component.
对信号进行分析时通常采用传统的傅立叶变换方法，傅立叶变换是时域和频域相互转换的数学工具，从物理意义上讲其实质是将信号分解成许多不同频率的正弦波的叠加。
It is normal to use the FFT method to analyze signals. This method is one kind of mathematical method that changes the time domain signals to frequency domain signal.
该校准仪是用于校准各种电子电压表基本误差的专用标准仪器，具有定点频率下正弦波信号输出的标准电压源。
This normalizing device is a standard instrument used to calibrate the intrinsic errors of the various kinds of electronic voltmeters.
此信号发生器可以方便输出正弦波、方波和指数波等各种不同波形的信号，输出信号的频率和幅值等参数可通过前面板控制。
Different signals such as sine waveform, step waveform and exponential waveform are available. Its frequency and phase can be adjusted precisely through the front panel.
此信号发生器可以方便输出正弦波、方波和指数波等各种不同波形的信号，输出信号的频率和幅值等参数可通过前面板控制。
Different signals such as sine waveform, step waveform and exponential waveform are available. Its frequency and phase can be adjusted precisely through the front panel.
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