使用先进的数字信号处理器，缩减了分立元件的数量，提高了系统的稳定性和扫频的速度；
This system has adopted the algorithm of digital down convert FFT, so the frequency resolution is improved greatly.
本文介绍电液伺服系统的几种动态测试方法，包括随机噪声测试，锤击法测试和扫频测试。
In this paper several dynamic testing methods of electrohydraulic servo systems are introduced, including stochastic noise test, hammering test and sweep frequency test.
介绍基于最低阶反对称板波激励、扫频幅度相位显示的复合材料粘结质量评价的新方法。
Descriptions are made of a new instrument based on the lowest order asymmetric plate wave excitation and swept frequency amplitude phase display.
通过对新赛线高频通道进行扫频试验，选择适合该高频通道的工作频率，有效地减小了该高频通道的衰耗。
Fitting operating frequency of Xinsai line high-frequency channel is decided through sweep checking of the channel.
本文探讨标准和非标准扫频仪中的几种频率标志的形成方法和适用场合。
This paper discusses several methods of frequency marker generation and their applications in standard and non-standard sweep analyzers.
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。
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.
测试结果表明所设计的分析仪输入频带宽、频率分辨力和扫频准确度高，达到国际同类产品先进水平。
The result showed that the analyzer has wide input frequency range, narrow RBW (Resolution Bandwidth) and high scanning accuracy, and it reaches the international advanced level.
为确保数字传输电缆和各种音响喇叭线、电源线在质量上的稳定性，公司还配备有扫频测试仪，并提供产业信息传输线质量监督检验中心检测报告。
To ensure the quality of digital communication cable and kinds of power line, we also introduced sweep signal generator to provide test report for cable's transportation capacity.
同时进行了裸盘正弦扫频振动失效试验，准确测量了硬盘的振动失效频率点和振动幅值。
Simultaneously, the sine sweep vibration tests are carried out to measure the vibration frequencies and amplitude which lead to operation failure of HDD.
用扫频法快速测量各种系统的幅频特性是动态特性，按逐点描绘法取得的幅频特性是静态特性。
The amplitude-frequency characteristics measured by means of frequency sweeping are dynamic characteristics and those measured by means of point-to-point method are static characteristics.
扫频式干扰、更高跳速碰撞干扰等新的干扰方法成为跳频通信系统电子对抗领域中又一重要研究方向。
New interference methods, such as sweeping frequency interference and faster-hop-collision interference, become a new focus of electronic countermeasures to FH communication systems.
在系统联调期间，该模拟器可进行极小步进、快速扫频，取得了满意的多普勒模拟效果。
During the system debugging period, it's proved to be a fast swemar generator, which can implement very little frequency steps.
本文通过理论分析揭示并探讨了滤波网络扫频测量时幅频特性的频率偏移和动态带宽现象的成因。
With the methods of theoretical analysis, this paper reveals and researches the result of frequency offset and dynamic bandwidth of a filter network in its amplitude-frequency characteristic.
正确使用扫频法测量幅频特性，可以避免大量测量结果中误差的分析与估算。
When frequency sweeping method being used properly for measuring amplitude-frequency characteristics, the analysis and estimation of errors in measurement results could be avoided.
在已知固定地面距离的发射站和接收站之间的扫频斜向探测技术能够获得电波传播群时延对频率关系的斜测电离图。
An oblique Ionogram is a plot showing the group path or time delay against operating frequency when using swept frequency obliquely sounding between the transmitting and receiving site.
本文介绍了作者研究的一种新颖的扫频双六端口网络分析仪校准与测量技术。
A novel method of calibration and measurement of swept frequency dual six-port network analyzer is given by authors in this paper.
扫频源比对实验证明该方法是有效的。
Swept-sine method comparison experiments verified that the method is effectual.
介绍了用零中频技术将扫频仪改造成频谱仪的一种方法。
This paper presents a new method for Sweep Oscillator transform to the Spectrum Analyzer by Zero-IF technique.
从基本的ISAR成像知识出发，运用简单的数学方法，首次对用任意次曲线来模拟扫频非线性曲线的方法进行了研究。
Based on the theory of ISAR, using simple maths methods, the method of using arbitrary times polynomial simulation for the nonlinearity testing of LFM signal is studied for the first time.
本文针对非线性悬架，研究通过数字快速正弦扫频获得其频域特性的数值解的方法。
The method of digit fast sine sweep frequency is used in nonlinear suspention system frequency feature numerical solution.
扫频仪也称频率特性测试仪，用于测试网络的幅频特性和相频特性，在现代电子测量中占有重要的位置。
The digital tester for frequency response characteristic, which is also called frequency-sweeping instrument, plays a very important role in modern electronic measurement.
扫频法是当前测量混凝土、金属、炭素等物体的新方法。
Swept method is a new method to measure concrete, metal, carbon and so on at present.
为配合随调式消弧线圈的使用，提出了一种扫频检测系统对地电容的改进型方法。
In coordination with the application of post-set arc suppression coil, a frequency scanning based modified method for detecting system capacitance to earth is proposed.
利用直接数字合成器(DDS)对夹心式换能器进行扫频，测得两个不同共振频率附近的导纳圆。
The direct digital synthesizer (DDS) is used to sweep frequency for a sandwich piezoelectric transducer two admittance circles of the transducer about two different resonance frequencies is measured.
将直流脉冲与扫频技术相结合，利用新型的扫频直流脉冲电磁水处理器进行循环水抑垢效应的研究。
A new electromagnetic water treatment device for anti-scaling treatment was prepared by combined DC pulse with frequency conversion technology.
将直流脉冲与扫频技术相结合，利用新型的扫频直流脉冲电磁水处理器进行循环水抑垢效应的研究。
A new electromagnetic water treatment device for anti-scaling treatment was prepared by combined DC pulse with frequency conversion technology.
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