观测的

The technical ofblind signal separation is mainly discussed in this dissertation: including the theory and themethod. Then a multi-sensor intelligent data processing system is established to solve theproblem involved above. And this is belong to the pels fusion and the characteristic fusion ofinformation fusion. The research content and contributions of the author are summarized asfollows:(1) The pre-processing procedure of blind signal separation is mainly discussed in this chapter.

本文主要研究了信号盲分离技术的理论与方法，并在此基础上研究了一个多传感器数据智能处理系统用于解决多传感器信息融合系统中当传感器观测信号为实际目标信号的混合信号时，如何从观测信号中提取目标源信号的问题，它属于信息融合功能层次中的像素级融合和特征级融合。

In order to investigate the excitation mechanism and response characteristics of wind-rain induced vibration of stay cable,an instrumentation system of wind-rain induced vibration measurement,which consists of anemometer,rain gauge and accelerometer,was installed on the Dongting Lake Bridge,Yueyang,China.

为了研究斜拉桥拉索风雨振的机理及响应特征，在岳阳洞庭湖大桥建立了由风速仪、雨量计、加速度传感器组成的风雨振现场观测系统，观测到了多次拉索风雨振现象；得到了发生拉索风雨振时风速、风向及雨量的基本条件，分析了风雨振时拉索振动的幅值、主振频率、模态参与特性及空气动力负阻尼比等响应特征。

Development of seismology is marked first by seismologic observation techniques, the reification of which is the evolution of seismometers.

地震学的发展首先表现为观测技术的发展，而地震计的发展是观测技术发展的最基本环节。

For the multi-channel system with multiplicative noises under multi-sensor observation an optimal fusion estimation algorithm is proposed on the conditions that the multiplicative noise is in the form of a general stochastic matrix and the measurement noises of each sensor are correlated with the dynamic noise.

第二，本文针对多传感器观测下的多通道带乘性噪声系统，在乘性噪声为一般矩阵且各个传感器的观测噪声分别与系统的动态噪声同时刻相关的条件下给出了状态最优滤波融合算法、最优固定域平滑算法及最优固定域反褶积算法。

In the presence of light coming from fluorescent lamps operating from 50 Hz supplies the stroboscopic effects cause a wrong perception of the movement.

由于来自于工作在50赫兹供电下的荧光灯的光线的存在，频闪观测效应导致对运动的错误观测。

By observing the movement of images and the speed of rotation and the stroboscopic flash of light there is a specific frequency, change the stroboscopic flash of light frequencies, the observation images will change.

所观测图像的运动规律与旋转物转速以及频闪光源的闪光频率存在着特定的关系，改变频闪光源的闪光频率，所观测图像会变化。

The cooperation program between China, Australia and Great Britain,"Pulsar timing observation at 18 cm using 25 m radio telescopy of Urumqi", is introduced for its significance, reconstruction of the receiver and its sensitivity.

对正在执行的由中、澳、英合作的"利用乌鲁木齐25m 射电望远镜在18cm 波段上进行脉冲星脉冲到达时间的观测研究"项目，就其课题意义、接收系统的技术改造和观测灵敏度等进行了介绍。

Data of latitude observation with the zenith telescope ZTL-180 are recalculated in a homogeneous system for the years 1970-1980. In this Paper the following results are given:(1) Correction of the declination and the proper motion for each pair at 1970.0

对1970—1980年间的纬度观测资料，统一使用IAU1964系统天文常数，按直角坐标法计算全部星对的视赤纬，用统一的公式进行了全部观测结果的归算处理。

We've been observing a sunlike star called 55 Cancri, star 55 in the constellation Cancer, for 19 years, and we watch the wobble of this star as it's yanked on by the planets orbiting it.

19年来我们一直在观测这颗位于巨蟹座的类似太阳的恒星——55C，观测这颗星因被它的卫星所猛拉所产生的摆动。

The tests of WHU-GM-05 series are performed by multi-comparisons, which include the comparisons between the model series and several analogous international geopotential models including EIGEN-GRACE series and GGM02S with respect to the corresponding degree variances and geoidal heights, and comparisons of the model geoidal heights with GPS leveling in the area of U.S.

基于两颗GRACE卫星的观测数据，采用本文导出的严密能量积分方法求解得到120阶的GRACE地球重力场模型，命名为WHU-GM-05；将WHU-GM-05模型与国际上同类重力场模型EIGEN-GRACE系列和GGM02S分别在阶方差和大地水准面高等方面作了比较，并与美国和中国的部分地区GPS水准观测值进行了精度分析。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。