前者是通过对载波信道的频率特性时变性测试、分析，实现信号平稳传输。
The former realizes steady transmission of signal by testing and analysing the carrier channel's frequency characteristic .
此系统应用小波降噪的方法提高测试信号的质量，然后提取信号特征点，得到溢流阀动态特性的各项参数。
Applying wavelet denoise to improve the test signal, the dynamic characteristic parameters of a overflow valve were obtained by selecting characteristic point of the signal.
《工程测试技术》这门课程主要讲了测试的基本原理、信号的分析和信号处理、传感器类型，测试系统的特性以及现代测试技术。
Engineering testing technique is mainly about the fundamental principles of testing, the analysis and process of signals, sensors types, features of testing system and modern testing techniques.
采用测试信号法，通过计算发电机组的次同步电气阻尼特性，分析所设计的SEDC对发电机组次同步振荡的抑制效果。
By using test signal method, the sub-synchronous electrical damping characteristics of a generator and the impacts of the designed SEDC on the generators electrical damping are analyzed.
实验结果表明，以“被测试电机-直流电力测功机-负载电阻”为结构、基于数字信号处理芯片的感应电动机转矩-转速特性自动测试系统是可行的。
The experimental results demonstrate: the automatic measurement system which bases on the DC dynamometer and DSP can well measure torque-speed characteristic of induction motor.
通过对输入信号特性的分析，确定控制门限，采用PID控制算法模拟常规模拟agc的工作特性，经实验室测试，验证了该方案的有效性。
By analyzing the characteristics of input signal, the threshold is determined, and PID algorithm to simulate the operating characteristic of analog AGC is employed.
本文针对该传感器进行了特性测试，并通过实验研究确定了喷油泵内齿条与传感器位置的物理零点，最后对传感器的信号调理电路进行了设计。
So it is the key to choice the sensor. The characteristics of sensor is tested. This paper adjusts the physical zero point between rack and sensor. The circuit of signal adjusting is design.
离线校正的方法是现阶段单脉冲雷达系统进行和差通道幅相校正采用的主要方法，它通过注入测试信号的方法来得到对误差接收通道幅相特性的估计。
The former one is now widely used in the monopulse system to calibrate the amplitude and phase imbalances between the sum and difference channels by injecting test signals.
根据现场测试的数据，选择应力波检测模式，并分析了应力波信号随检测距离的时频特性变化。
According to the filed data, the mode of stress wave to be picked up is selected and the characteristic changes of stress wave signals in time and frequency domain are analyzed.
切合实际器件特性可以分析根据实际营运情况，由不同检测频率，测试信号水平和直流偏置。
Realistic device characteristics can be analyzed under actual operating conditions by varying the test frequency, test signal level, and dc bias.
对一个仅含有直流输电线路的系统，采用复转矩系数——测试信号法，对其次同步振荡特性进行了分析。
Using the test signal method, a detailed analysis of subsynchronous oscillation for a HVDC system is performed.
分析了小波脊线与信号瞬时频率的关系，提出了基于小波脊线的刮水器电动机机械特性测试新方法。
The relationship between wavelet ridge and instantaneous frequency is analyzed and a new method of the mechanical characteristic test of the wiper motor based on wavelet ridge algorithm is proposed.
介绍利用大地脉动作为激振振源，测试并分析高层建筑的脉动响应信号及动力特性。
The measurement and analysis of the pulsation response and dynamic behavior of tall buildings taking the earth pulse as the vibromotive source is introduced.
对设备的测试结果表明：模拟的衰落信号的包络统计与理论统计特性和实验观察基本一致。
Envelope fading distributions statistics produced by this device show close agreement with theoretical statistics and documented experimental data.
该系统主要有电流与电压关系测试、电压与电流关系测试、电阻与所加的脉冲信号关系的测试和疲劳特性测试等模块组成。
It includes several modules of the relationship between current and voltage, voltage and current, resistance and pulse width or height, fatigue characteristics.
分析了4x密度磁光盘模压信息的特性，根据国际标准所提出的测试条件自行研制了测试系统，阐述了头信号和槽信号的测试方法，给出测试实例。
A test system has been designed which can measure the characteristics of embossed information of magneto optical disk, and a sample disk test result is given in the end.
这种测试技术同样适用于全主动寻的系统雷达导引头信号源特性的测试。
Primary experimental results reveal that this new system is also admissible for active homing rada...
这种测试技术同样适用于全主动寻的系统雷达导引头信号源特性的测试。
Primary experimental results reveal that this new system is also admissible for active homing rada...
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