1) signal feature
信号特征
1.
Plenty of expensive experiments are needed to get the signal feature of helicopter gearbox s fault gear,which is the requirement of helicopter gearbox s fault diagnosis.
开展直升机减速器故诊断研究需要通过大量费用高昂的实验获取典型故障的信号特征。
2.
Based on the brief description of the basic fundamentals of independent component analysis (ICA), a fast fixedpoint algorithm for ICA used for noise removal of eventrelated potentials (ERP) and its signal feature improvement are presented according to ERP s character and its need of fast processing.
实验显示,快速ICA算法能有效地分离和消除噪声干扰,并能改善和增强单次ERP的信号特征。
2) signal characteristic
信号特征
1.
It reveals that the optical leverage relationship and the variance of signal characteristics serve as two main factors affecting the average FWHM of the measured signal pulses.
针对自行研发的基于窗口调制和比色测温技术的热喷涂粒子参数测量系统,从理论上分析了瞄准距离变化对脉冲信号半高宽的影响,提出了光学杠杆关系和信号特征变化两种共同起作用的影响机制,并指出两种机制在小于理想瞄准距离时对半高宽的影响相反,而在大于理想瞄准距离时的影响则因相同而叠加,使得脉冲信号半高宽随瞄准距离的变化呈现不对称U形变化规律。
2.
Based on truing model of saucer diamond-grinding wheel with cup wheel, the influence of contact stiffness between saucer wheel and cup wheel on the stability of the grinding system and grinding force was discussed, as well as verifying of the signal characteristic and changing rule of grinding force.
通过杯形砂轮修整碟形金刚石砂轮的修整力试验,对磨削力的信号特征、变化规律进行了数理检验。
3.
Based on the classification of signal characteristic,a model of quantitative recogni.
对油管缺陷量化识别技术进行了研究,基于缺陷分类,通过分析缺陷漏磁信号,选取了信号特征量并进行了分类;利用人工神经网络解决了信号特征量与缺陷几何外形特征之间的非线性映射问题;建立了基于特征分类的油管缺陷量化识别模型。
3) signal characteristics
信号特征
1.
It reveals that the incident energy level and the variances of signal characteristics are the two main factors affecting the voltage level of signal pulses.
针对基于窗口调制和比色测温技术的热喷涂粒子参数测量系统,从理论上分析了瞄准距离变化对脉冲信号强度的影响,发现入射能量水平和信号特征的变化是影响实测脉冲信号强度的主要因素,二者的影响作用在小于理想瞄准距离时相反从而在一定程度上相互抵消,在大于理想瞄准距离时相同从而叠加,使得实测脉冲信号强度随瞄准距离的变化呈现不对称倒V形变化规律。
2.
The radiant signal characteristics vary with the spatial position of particles, the aperture di.
结果发现:信号强度主要由孔径光阑直径和瞄准距离决定,而信号特征则随粒子空间分布、孔径光阑直径及调制窗口尺寸的变化而改变;试验证实实测信号的相对强度和信号特征与预测规律基本吻合。
4) feature signal
特征信号
1.
Application of wavelet package transformation for power load feature signal extraction;
小波包变换在电力负荷特征信号提取中的应用
2.
For solving the difficulty of feature signal extraction with strong noise, a new method which is based on Independent Com- ponent Analysis (ICA) is proposed.
为了解决强背景噪声下采集到的管道压力参数信号中泄漏特征信号难以准确提取的难题,本文提出利用独立分量分析技术(ICA)对负压波信号进行处理,提取泄漏信息特征信号,实验结果显示利用该方法可以有效实现信号中弱目标信号和强背景噪声的分离,使负压波信号信噪比大幅提高,为泄漏诊断打下良好基础。
5) characteristic signal
特征信号
1.
Energy properties and characteristic signal of fuel-rich propellants containing 3,4-diamino-furazan;
含3,4-二氨基呋咱低特征信号富燃料推进剂能量性能及特征信号分析
2.
By virtue of the analytical principle of smallwave and the fault signals decomposed from smallwavepacket,some frequency channels relative to the faults are extracted and restructured,the component of main vibration and the interfering terms are rejected, so that the characteristic signals of the fault are separated from complex vibration signals.
对齿轮箱的振动及振动信号进行了分析,利用小波分析原理及小波包分解故障信号,抽取与故障有关的几个频段进行重构,剔除了主振动分量和干扰项,从而使故障特征信号从复杂的振动信号中分离出来。
3.
It is widely used in the fields of engineering and technology for the sine signal which is a characteristic signal.
对于正弦特征信号,在工程技术领域有着广泛的应用。
6) signature
[英]['sɪɡnətʃə(r)] [美]['sɪgnətʃɚ]
特征信号
1.
On automatic wide-band MMW measurement and database building of target s signature;
宽带毫米波目标特征信号自动测量与建库研究
2.
Classification and assessment of solid propellant rocket exhaust signature;
固体火箭发动机羽烟特征信号的分类及测试评估概述
3.
The experimental results indicate that this new technique can be used to characterize signatures of various types of propellants with satis.
研制了一套固体火箭发动机装药排气羽烟特征信号的检测系统,确定了固体推进剂发动机的实验条件,对4种推进剂进行实时检测,得出燃气烟雾对多波段信号衰减的透过率,并对测量系统可能带来的误差因素及系统的不确定度进行了分析。
补充资料：低特征信号推进剂
分子式：
CAS号：
性质：其燃气中无可见或可探测性烟雾，无红外、紫外、可见光和无电磁波特征信号，对制导导弹的无线电、红外、紫外、激光等信号无干扰和衰减作用的推进剂。该推进剂组分中不含铝粉和高氯酸铵，采用硝胺、电子捕获剂和二次燃烧抑制剂。显著提高导弹武器的生存能力、命中精度和战斗力。
CAS号：
性质：其燃气中无可见或可探测性烟雾，无红外、紫外、可见光和无电磁波特征信号，对制导导弹的无线电、红外、紫外、激光等信号无干扰和衰减作用的推进剂。该推进剂组分中不含铝粉和高氯酸铵，采用硝胺、电子捕获剂和二次燃烧抑制剂。显著提高导弹武器的生存能力、命中精度和战斗力。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条