frequency function的例句大全

The Development of Multi-Function Dual Frequency GPS Receivers for Time Transfer

用于JATC远程时间比对的双频GPS接收机的研制

This paper analyzes the principle of time domain measurement function of high per-formance spectrum analyzer and its use in Amplitude modulation ( AM), Frequency modulation ( FM) and pulse modulation test.

本文分析了高性能频谱分析仪时域测量功能的原理，并给出其时域测量功能在调幅、调频、脉冲调制测试中的应用。

Conclusion: Low frequency time-varying magnetic field can promote cellular immunity function in mice.

结论：低频交变磁场能增强机体的细胞免疫功能。

The software has the characteristics such as easy operation, complete function and friendly man-machine interface, can complete the functions expediently, such as tension set, sampling frequency set, data register, image display, etc.

本软件具有操作简便、功能齐全、人机界面友好等特点，能方便地完成张力设定、采样频率设定、数据记录、图像显示等功能。

The results indicate that, under the thermal noise approximation, the measurement accuracy of Brillouin frequency shift is dependent on thermal noise, the derivative of the transmission function of the edge optical filter and the power of Brillouin scattering optical signal.

结果表明，在热噪声近似下，布里渊频移测量精度与热噪声、边缘光滤波器透射函数的导数及布里渊散射光信号功率有关。

In fact, the FFT spectrum is the convolution between read time series and window function in domain of frequency, the dominant frequency position influence on leakage should not be ignored.

由于实际信号和窗函数在频域为卷积关系，所以应该考虑实际频率在FFT谱上所处的位置。

However, extending the upper frequency of such function signal generator is limited by the read-out time of the memory and the conversion rate of the digital-to-analog converter.

可是，这种信号发生器的上限频率的提高受存储器的读取时间和数模转换器的转换速度的限制。

Development of digital amplitude and phase adjustable supply with df/ dt frequency slide difference function

带df/dt频率滑差功能的数字调幅调相电压源的研制

Frequency characteristic of capacitor-coupled basic common-emitter amplifier has been analyzed, the complete frequency characteristic function and Bode diagram are given.

系统性分析了电容耦合基本共射放大器的频率特性，得到了比较完整的频率特性函数和波德图。

Combining with the acoustic structure coupling and using a weighted residual formulation to deal with the boundary condition, the analytical solution expression of the progressional expanded wave function was obtained, and the prediction analysis solution at mid-low frequency was given.

结合声固耦合关系，利用加权残数法处理边界条件，得出该声压稳态响应的波函数级数展开式，并给出了中低频噪声场的分析预测解。

Studying Frequency Veering Characteristics of Aircraft Engine Blade with Beam Function Combination Method

航空发动机叶片频率转向特性研究

Sub-controllers are designed for the dual-frequency subsystems respectively. The low frequency subsystem satisfies minimum sensitivity function and high frequency subsystem satisfies minimum complementary sensitivity function.

设计低频子控制器使分解出来的低频子系统具有最小灵敏度函数，高频子控制器使分解出来的高频子系统具有最小补灵敏度函数。

Undr the control of frequency inverter and PLC ( Programmable Logic Controller), the general AC asynchronous motor can function as low rotate speed large torque stepping motor. The working principle, structure, adjusting and testing method of the motor system were introduced.

利用变频器和PLC可编程控制器进行控制，可以将普通交流异步电动机用作低速大转矩步进电机，文章介绍了这种步进电机系统的工作原理、系统构成和调试方法。

According to optical transfer function, degree of modulation and apperceive degree of space frequency vision vs object image, TIFF grayscale scenograph is made.

根据光学传递函数、调制度和空间频率视觉及对物象的感知程度，制作TIFF格式透视灰度图。

Study On A Modified Double Weighted Function Method for Flood Frequency Analysis

水文频率分析中修改双权函数法的研究与应用

firstly, we use the radon-ambiguity transform to get the linear kernel function, which can remove the cross terms of multi-lfm signals and some part of noise in the ambiguity domain. then we use the two-dimensional fourier transform to get the new time frequency representation.

首先由Radon-Ambiguity变换设计出线状核函数，以去除噪声和多线性调频信号之间的交叉项在模糊域中的影响，再通过二维傅立叶变换得到一种新的时频表示。

Generalized frequency response function theory and its application

广义频率响应函数理论及其应用

Cupping combined with low frequency electric treatment flexion alternate with lateral upper limb muscle can improve, Increased the risk of lateral upper limbs arom, and improve bilateral upper limb movement function and with daily life activities. Clinical curative effect is better than pure cupping therapy.

电针结合屈伸交替低频电治疗可以提高患侧上肢肌力，增加患侧上肢关节活动度，改善患侧上肢运动功能及日常生活活动能力，临床疗效优于单纯电针治疗。

In this paper, A math model about LTI transfer function of Phase-Locked Loops is introduced, brief discussed trade-offs between the lock time and spur frequency.

文中讨论锁相环线性时不变系统传输函数数学模型，锁相环的锁相时间以及锁相后的扰动毛刺的关系。

The reach paper mainly discusses the design process of multi-function cymometer that uses CPLD to count the frequency measurement and cymometer is also controled by signal chip computer.

本文主要论述了利用CPLD进行测频计数，单片机实施控制实现多功能频率计的设计过程。