frequency sweep
英 [ˈfriːkwənsi swiːp]
美 [ˈfriːkwənsi swiːp]
频率扫描，扫频
双语例句
- After the sequence passes through digital-to-analog converter and low pass filter, the desired frequency sweep signal is synthesized by the method of direct digital synthesis.
该序列通过数-模转换器和低通滤波器后，产生出频率扫描信号。 - Study of viscous-elastic properties of epoxy asphalt mixtures by using dynamic frequency sweep
基于动态频率扫描的环氧沥青混合料性能研究 - During the experiment, instrument performs broadband frequency sweep measurement, and continuously changes measurement frequency and records real part and imaginary part numeric values.
实验过程中仪器采用宽频带扫频测量，不断改变测量频率，记录不同频率下岩心复电阻率的实部数值、虚部数值； - Video frequency sweep generator
视频扫描信号发生器 - When using frequency sweep meter to measure the input impedance of antenna, the balanced-unbalanced transformer must be connected between coaxial transmission line and antenna.
用扫频仪测量天线的输入阻抗时，在同轴传输线与天线间应按平衡&不平衡变换器。 - First of all, vibration equation of horizontal cable parameter vibration has been mathematically solved and frequency sweep and parameter have been analyzed, based on practical engineering.
方法以实际工程拉索为例，首先对水平拉索参数振动的偏微分振动方程进行数值求解，并进行扫频和参数分析； - The corresponding frequency of the key parts of the poplar particle presswood pallet at maximal transmissibility was determined by frequency sweep test.
采用扫频试验得出振动台对托盘关键部位最大传递率所对应的频率。 - Advantages of the rapid frequency sweep technique for dynamic characteristics research of the linear system are also described.
特别对用快速正弦扫频试验方法研究线性系统动态特性的比点做了必要的说明。 - LFM is one of widely used methods of ISAR. Nonlinearity in frequency sweep has some effects on the quality of imaging.
线性调频法是逆合成孔径雷达（ISAR）成像中一种常用的方法，在该方法中扫频非线性对成像质量有一定的影响。 - Analyzed, simulated and validated the effect of power fluctuation and the nonlinearity in frequency sweep on radar practical ranging precision, and the validating method of nonlinearity in frequency sweep.
分析、仿真并验证了扫频非线性对雷达实际测距精度的影响、扫频非线性的校正方法。 - Frequency sweep signal sequence is generated from waveform memories added by counter and phase accumulator.
利用计数器和相位累加器实现对波形存储器寻址，从而产生频率扫描信号序列。 - Three different kinds of frequency sweep curves appear with increasing temperature;
随温度升高出现三种不同的频率扫描曲线； - Curve Simulation for Nonlinearity in Frequency Sweep in ISAR Imaging
对ISAR成像中扫频非线性的曲线拟合 - The resonance-frequency of ultrasonic motor by frequency sweep of keyboard is searched.
从键盘里可以对超声波电动机进行扫频，从而搜索到超声波最佳谐振频率。 - Frequency Sweep Using Linear Frequency Modulated Pulses ( Chirp) Signal
线性调频脉冲（chirp）信号扫频 - In chapter 4, the frequency sweep microwave interferometer diagnosis system is designed in detail and it's issues and errors are described. It uses the condition to design the system.
第四章详细地设计了气动物理靶尾迹扫频式微波干涉仪诊断系统，提出了的设计思想，并说明了这类干涉仪要注意的问题。 - A novel method of direct digital synthesizing frequency sweep signal is presented.
介绍了利用直接数字合成技术产生频率扫描信号的新方法。 - We have realized the validating of nonlinearity in frequency sweep.
在工程上实现了对了扫频非线性的校正。 - In this paper, sine wave frequency sweep signal generator for multifunction ultrasonic instrument is presented.
提出了一种适用于多功能超声手术装置的正弦波扫频信号发生器。 - Small Amplitude Oscillation Frequency Sweep of Lamellar Liquid Crystal
层状液晶的小振幅振荡频率扫描研究 - Digital Realization Method of Frequency Sweep Signal
频率扫描信号的一种数字实现方法 - The epoxidized natural rubber was tested by temperature sweep, frequency sweep and strain sweep by using rubber process analyzer, and the results were compared with that of natural rubber.
用橡胶加工分析仪对环氧化天然橡胶进行了温度扫描、频率扫描和应变扫描，并和天然橡胶的响应曲线进行了对比。 - The scheme has simple structure and agile frequency tansform, it can get stable frequency and frequency sweep.
方案结构简单紧凑，频率变换快速灵活，可完成稳定的点频输出和扫频功能。 - Image processing method is used to carry out frequency sweep and voltage sweep measurement. The in-plane motion characteristic of MEMS is obtained and the testing results are analyzed and discussed.
利用图像处理方法对MEMS谐振器做扫频和扫压测量，获得了MEMS器件的平面微运动特性，并对测量结果进行了分析和讨论。 - For example, improvement of the Gaussian noise generator and implement of the frequency sweep function are given.
例如，高斯噪声生成方法的改进，信道模拟器多普勒频率扫描功能的实现。 - The principle and method of designing a low frequency sweep system using the direct digital frequency synthesis technique
利用直接数字式频率综合技术（DDFS）综合低频扫频系统的的原理和方法 - It also presented a method of realizing frequency modulation by real-time changing frequency tuning word of high-speed phase accumulator, Frequency sweep, FM and FSK modulation are analyzed and designed. The data can be built stably and the frequency be synthesized is correct.
重点对高速相位累加器、FM、扫频、FSK等调制的实现方法进行了分析并基于FPJ进行，数据能够稳定建立，频率合成正确。 - Frequency sweep generator is short for frequency characteristic test instrument.
扫频仪是频率特性测试仪的简称。 - Sweep frequency rectangular power supply is developed to replace traditional power supply. Frequency sweep operation mode is used to substitute traditional voltage-scanning operation mode and mass spectrograms with new operation mode are attained for the first time.
研制频率扫描矩形波电源并用其替换传统四极质谱仪电源，使用矩形波频率扫描的工作方式替代了传统正弦波电压扫描的工作方式，首次获得了新型工作方式下的四极质谱图。 - Then the working principle and preparation of the magnetoelastic sensor and frequency sweep method for detection are introduced.
其次对磁弹性传感器的工作原理、制备以及扫频检测方法进行了介绍。