1) measuring of gun firing noise
枪炮噪声测量
2) noise measurement
噪声测量
1.
Application of noise measurement by using sound intensity for automobile air-conditioner;
声强测量法在汽车空调噪声测量中的应用
2.
Question of noise measurement for low-noise electric power plant;
低噪声电站噪声测量问题
3.
Source-driven noise measurements are simultaneous measurements of and randomly-pulsed neutron,which provide measured quantities related to the sub-critical neutron multiplication factor.
252Cf源驱动噪声测量是对Rossi-α和随机脉冲中子同时进行测量,这种方法能测量与次临界中子增殖因子相关的量。
3) measurement noise
量测噪声
1.
Observer Design for Descriptor Systems with Unknown Input and Measurement Noise;
含有未知输入与量测噪声的广义系统观测器设计
2.
In deeply integrated MSINS/GPS navigation system based on pseudorange and it’s rate, the measurement noise matrix R according to pseudorange and it’s rate is important to performance of the kalman filter;and it changes with circumenstance,and star position.
在MSINS/GPS深组合导航系统中,伪距、伪距率噪声对应的量测噪声阵R随环境、卫星位置的改变而改变,它对卡尔曼滤波器的性能影响很大。
3.
The calculation of measurement noise covariance(R)is added to the normal Kalman filter.
提出在Kalman滤波中引入系统量测噪声协方差阵 (R)的计算 ,并对其加权 ,从而影响滤波增益 ,抑制发散。
4) measurement noise
测量噪声
1.
In order to identify structural damage locations and extents, a two-stage damage detection method by using measured displacements is presented and the effect of measurement noise on damage detection performance is studied.
为了解决测量噪声下的损伤定位和定量识别问题,提出了基于测量位移的两阶段识别方法和基于统计理论的损伤敏感度分析方法。
2.
Some factors,such as incomplete measurements,measurement noise,are main difficulties confronted in damage identification method for application.
测试信息不完备、测量噪声等因素是制约结构损伤识别方法应用的主要难点。
3.
Measurement noise of sensor in guidance system is the main cause of degradation of guidance performance.
研究存在相对速度测量噪声时的鲁棒制导问题 ,根据一类变结构制导规律 ,分析了相对速度测量噪声、制导参数对导引收敛性的影响 ,以弹道收敛为准则 ,给出了实现鲁棒制导的条件 ,研究结果对设计先进的雷达制导系统具有重要意义。
6) noise-survey meter,noise measuring,noise measurement
噪声测量<声>
补充资料:明代枪炮
Image:1161957983876705.jpg
三眼铳:3管单兵手铳,由3支单铳绕柄平行箍合而成,成品字型,各有突起外缘,共用一个尾部,单铳口径15毫米,全长350-450毫米,都有药室和火门,可连射。射后可当锤击敌.是明军重要的单兵火药武器,原因是它可以连续释放,构成密集火力,有利于压制行动迅速的骑兵.
说明:补充资料仅用于学习参考,请勿用于其它任何用途。