另外，水文对噪声测量系统和测试方法进行了讨论，并提出了一些建议。
In addition, the noise measurement system and method are discussed in the paper and some Suggestions are given.
虽然这些方法在大多数测量中能控制和减少噪声，但是一些技术只是防止噪声进入系统，而其他只是去除信号中的外来噪声。
Although these methods can control and reduce the noise in most measurements, some techniques just prevent noise from entering the system, whereas others remove only extraneous noise from the signal.
混频器的变频损耗和噪声温度的测量可以用改变中频部分的噪声温度使接收机的系统噪声温度变化来加以确定。
The conversion loss and noise temperature of mixers is determined by changing the IF noise temperature so as to change the noise temperature of the receiver system.
讨论了这些措施对测量系统的稳定性、漂移、噪声抑制、抗干扰等性能指标的改善。
The improvement of the measuring system performance such as stability, drift, noise-suppression and interference-resistance by adopting these measures has been discussed.
为了抑制噪声的影响，应用交流技术开发了有更高精度的锁相微分电导测量系统。
In order to depress the noise, a lock-in differential conductance measurement system is designed.
同时，为抑制系统外部干扰和测量噪声，在控制系统中加入了滤波环节。
Meanwhile, to suppress external interference and measurement noise, a filter is added into control system.
由于系统方程是时变的，在测量过程中，系统噪声和观测噪声的统计特性等很难精确地估计或测定，事实上很多误差模型都不能简单的设为白噪声。
Because the system equation is changed with time, during the measurement, the statistic character of the system noise and the observation noise cannot be estimated or be determined accurately.
它会造成测量系统中的噪声。
设计了电力线信道特性测量系统，根据测量结果对噪声特性、传输特性和阻抗特性等相关问题进行了分析。
Measurement system of PL channel characteristic is designed, and the characteristic of noise, transmission and impedance are analyzed based on the measuring result.
本文设计的卡尔曼滤波器适用于对地观测卫星的测量系统，能获取较低噪声的姿态测量信息。
The Kalman filter is suitable to the measuring system of a remote sensing satellite, by which an attitude measurement information with lower noise can be obtained.
常规的测量电源系统工作频率的方法易受噪声和谐波的影响。
The common method of measuring a power system operating frequency is easily affected by the noise and harmonics.
为了有效地抑制传导噪声，提出了一种传导电磁干扰综合测量与分析系统。
To suppress the conducted electromagnetic interference (EMI) noises effectively, a synthetic processing system is proposed to measure and analyze conducted EMI noises.
详细介绍了噪声对超导量子比特测量系统的影响。
The influence of noise to the measuring system of superconductor qubit is introduced in detail here.
研究了噪声和随机二进制信号同时激励双稳系统时的输出响应，并测量了输入输出互相关系数。
The nonlinear response in the bistable system with a random binary signal by adding the variable amount of noise is studied, and the input-output cross-correlation coefficient is measured.
基于测量融合理论提出了一种任意相关噪声异类传感器非线性系统目标跟踪算法。
Based on measurement fusion theory, a target-tracking algorithm which fused measurements of nonlinear system with dissimilar sensors in case of arbitrary correlated noises is developed.
系统包括CCD驱动脉冲产生电路、低噪声测量放大电路、自适应比较电路、单片机控制电路以及上位机处理程序。
The system consists of driving pulse generating circuit for CCD, instrumental amplifier with low noise, MCU controlling circuit and PC program for dealing with the data conveyed by MCU.
触发判选与数据获取系统较大地抑制了噪声，提高了信噪比和测量精度。
The system can decrease the noise and can increase the ratio of signal to noise and the measurement precision.
通过用声强测量系统对水下大型结构体进行了辐射噪声声功率的测定以及噪声源的识别和定位的实验。
The measurement of radiation noises from an underwater structure body and identification and location of noise sources were carried out by using a sound intensity measurement system .
本文采用双光路激光系统，对亚麻尘的相对浓度进行了连续测量，具有测量范围宽、灵敏度好、抑制激光强度起伏噪声等特点。
The two laser beam system has been used to measure the relative density of linen dust, with the feature of wide measurement range, good sensitivity and restraining the intensity fluctuation noise.
该算法应用在基于图像处理的刀具测量系统中，实际结果表明具有良好的抗噪声性能，能准确提取出图像的特征点。
This algorithm is applied to the cutting tools measurement system based on image processing and the actual result proves it ha.
为了验证噪声检测系统的精度和可靠性，在半消声室和普通房间内，分别对标准声功率源和小型电机作声功率对比测量试验。
To verify the accuracy and reliability of the system, contrast tests on reference sound power source and small motor are performed respectively in a semianechoic chamber and a common room.
存在于TDI - CCD图像中的条带噪声会影响图像的质量，降低系统的测量精度。
The existence of stripe noises influences the qualities of TDI-CCD images, and reduces the measurement accuracy of the system simultaneously.
具有良好的标准模式噪声抑制性能的系统通常会从测量值中消除该噪声。
A system with good normal-mode noise rejection can usually remove this noise from the measurement.
测量系统采用了微波信号源、低噪声放大器和微波检波器等组成微波电路单元。
The microwave circuit unit is composed of microwave signal resource, low noise amplifier and microwave detector.
针对该问题，文中研究了测量噪声相关情况下的同步多传感器跟踪系统的测量融合技术。
Aiming at this problem, the measurement fusion technique of synchronized multi-sensor tracking system in case of correlated measurement noises is studied.
第二部分介绍了当存在相对高的测量系统噪声（示波器噪声）电平时，如何进行更精确低电平信号噪声和干扰测量的有用提示。
The second part is to introduce the useful prompt to measure the low level signal noise and its disturbance even more accurately when there is rather high noise level in measure system.
在振动与噪声测量实验基础之上分析总结了磁悬浮转子系统振动和噪声的分布情况，从而进一步验证了磁悬浮转子系统的支承特性。
The bearing characteristics of the magnetic suspension rotor system were validated based on the result of the analyse of the vibration and the noise measurement experiment.
在跟踪滤波器的增益阵中引入测量噪声与过程噪声的相关量和测量噪声之间的相关量，增加了描述多传感器融合系统的信息量。
The correlations between measurement noises and processing noises are added to the gain matrix of tracking filter, so information that can describe multi-sensors fusion systems is increased.
导致发散的原因很多，其中很重要的原因就是缺乏对系统噪声和测量噪声统计特性的了解。
There are many reasons to cause divergence. One of the most important reasons is due to the unknown statistical properties of system noise and measurement noise.
通过对6480型驱动桥的噪声功率、表面声强、表面声压、表面振动加速度以及相应的时频谱进行了全面、系统的测量和分析。
The noise power, sound intensity, sound pressure, vibration acceleration and corresponding time-frequency spectrum of 6480 driver axle surface were measured and analysed.
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