由于趋势重要性，您需要搜集一系列可观测性数据。
Since trends are usually important, you need to gather a range of data observations. For example
可观测性分析是无源定位与跟踪系统的前提和基础。
Observability analysis is the basis and prime task in a passive location and tracking system.
还提出了一种基于节点邻接矩阵的快速可观测性分析方法。
In addition a speedy observability analysis method based on nodal adjacent matrix is put forward.
对多静止测向站系统的可观测性、定位方法进行了分析和研究。
Observability requirements and localization methods for multiple stationary observers bearings-only localization system is discussed in this paper.
被动式目标跟踪主要存在两个问题：系统非线性和距离不可观测性。
There are two main problems in bearing-only tracking: system's nonlinearity and inscrutability of the range of target.
可观测性和可观测度分析是确定动态系统卡尔曼滤波效果的重要环节。
The analysis on the degree of observability to initial alignment of SINS/GPS integrated navigation system;
第六节我们将证明开环系统(1.1)-(1.3)的精确可观测性。
In section 2.6, we show the open-loop system (1.1) - (1.3) is exactly observable.
介绍了基于动态系统可观测性矩阵奇异值分解的状态变量可观测度的分析方法。
The method of analyzing the observable degree of the state variable has been introduced by means of the singular value decomposition (SVD) of the observable matrix of a dynamic system.
提出了一种新的基于降阶网络雅可比矩阵的电力系统状态估计可观测性分析方法。
A new observability analysis algorithm for power system state estimation based on reduced network Jacobian matrix is proposed.
对于线性系统，其可观测性可通过对可观测性矩阵的分析获得，但并不能求出系统的观测度。
The observability of linear timeinvariant dynamic system can be obtained by the analysis of the observable matrix, but it can not give the observability.
可观测性分析是无源定位与跟踪系统的前提和基础，只有满足可观测条件才能对系统进行正确求解。
Observability analysis is the basic and prime task in passive localization and tracking system, for only when the system is observable, it can be determined with unique and definite solution.
捷联惯导系统的卡尔曼滤波模型在传递对准时，为线性时变系统，而线性时变系统的可观测性分析比较困难。
During a transfer alignment of strapdown inertial navigation system, Kalman filter models are linear time varying system whose analysis of observability is difficult.
通过对INS误差可观测性分析，可以看出增加不同种类的外部导航信息观测量，将有效提高INS误差修正能力。
From the system observability analysis, adding more kinds of external measurements into the inertial navigation system can enhance estimation accuracy of INS error.
以里程计作为外部传感器，建立了运动状态下初始对准的数学模型，分析了系统状态的可观测性，并进行了仿真研究。
By selecting an odometer as the system's external sensor, the mathematical model for the alignment in the moving state is established and the observability of the system is analyzed.
采取这一方法可以得到“唯一确定”的系统最大可观测岛，从而为分布式状态计算中的系统可观测性分析提供了可能。
The presented method can be used to determine the maximum observable island, which is useful for the distributed state estimation of distribution system.
为了便于利用现有的正常系统研究结果，运用矩阵的约当分解，将一类广义系统化为正常系统，并保持其可观测性不变。
For the sake of using the research of normal systems easily, descriptor systems are changed into normal systems by using Jordan decomposition of matrixes and their observability is hold on.
电力系统状态估计的内容包括：网络拓扑分析、网络可观测性分析、状态估计、状态估计潮流、不良数据检测和辨识等。
The power system state estimation involves network topology, network observability analysis, state estimation and detection and identification of bad data.
通过对可观测性能分析，得出了这样的结论：仅用伪距和伪距变化率为观测量的组合系统对姿态角误差的可观测性较差。
Observability analysis shows that the integration system, in which only GPS pseudo range and delta pseudo range are the observable, can not assure favorable observability of the attitude error angles.
通过对INS系统可观测性进行分析，得出增加不同种类的外部导航信息观测量将有效提高INS误差修正能力的结论。
By the observed capability analysis of INS, adding more kinds of external navigational information the integrated navigation system can promote the capability of INS error-correction.
该算法为了减小距离的不可观测性对于非线性滤波的影响，在假设的多段距离间隔中采用并行的高斯-厄密特滤波并加权获得目标的状态估计。
In order to decrease the influence of non-observability of distance, based on Gauss-Hermite filter, multihypothesis of distance is adopted to operate collateral filter.
论文第二章介绍了利用相位差变化率和多普勒变化率的定位原理，并且通过系统可观测性分析证明了其与角度信息联合利用跟踪目标的可行性。
In chapter 2, the basic principle and observability for target location utilizing phase difference rate-of-change and Doppler rate-of-change information of emitter is discussed.
为了在科学上是有用的，所选择的概念必须是可操作化的；也就是说，它们的概念性含义必须与实证上可观测的事实相对应。
To be scientifically useful, the concepts chosen must be operational; that is, their conceptual meanings must correspond to empirically observable facts.
首先分析了系统的观测性，得出了系统可观测的两个必要条件。
System observability is examined and two necessary conditions for the system to be observable are obtained.
根据结构系统可观性，分别给出了观测一般结构和重频结构的前若干阶目标模态所需要最少传感器数量的估计方法。
The minimum number of sensors for observing a normal structure and a structure with repeated frequencies is studied respectively based on dynamic system observability.
然后，通过对误差方差阵逆矩阵秩的分析，比较详尽地分析了不同数量视线观测条件下导航算法的可观度和可观性。
Then, navigation system observability and observable degree with different quantitative line-of-sight measurements are analyzed in detail by rank analysis of the error variance inverse matrix.
在实际应用中，只要满足可观性原理就可以通过运动观测平台估计出目标的位置和速度。
In the practical applications, the position and velocity of target possibly can be obtained by a single moving observation platform using measurement data.
在物理学中的对称性，事实上意味着某种基本量不可观测。
Actually the symmetry in physics means unmeasurable for certain fundamental quantities.
或许生命自然出现的可能性是如此的小，以致于地球是银河系中或可观测到的宇宙中的唯一的行星，在这颗行星中产生了生命。
Maybe the probability of life spontaneously appearing is so low, that Earth is the only planet in the galaxy, or in the observable universe, in which it happened.
或许生命自然出现的可能性是如此的小，以致于地球是银河系中或可观测到的宇宙中的唯一的行星，在这颗行星中产生了生命。
Maybe the probability of life spontaneously appearing is so low, that Earth is the only planet in the galaxy, or in the observable universe, in which it happened.
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