先验信息

论大地监测网结合先验信息的平差方法

On the adjustment of geodetic monitoring networks with a priori information

于是在拥有少量先验信息的情况下，改善聚类结果成为迫切需要。

Using the small amount of a priori information to improve the clustering result is an urgent need .

带先验信息的SVM决策树的鸟类图像识别研究

Research on birds Image Recognition with SVM decision tree with Priori information

正则化方法通过增加先验信息约束，达到增强SAR图像特征的目的。

Regularization technique could enhance SAR ( Synthetic Aperture Radar ) image by imposing prior information .

先验信息在Bayes可靠性评估中的应用研究

A Research to prior information used in Bayes Reliability Evaluation

基于Bayes先验信息法的可靠性评估方法

Reliability Estimation Methods Based On Bayes Prior Information Method

结合实际扫描过程中会得到序列图像信息，考虑到不同层间亦有解剖冗余性信息可以利用，提出了3D权值先验信息应用于序列低剂量CT图像恢复。

Taking into account the redundancy between different slices of anatomical information , we used weight prior information in 3D low-dose CT image sequence restoration .

基于先验信息可信度的鱼雷可靠性Bayes分析

A Bayes Reliability Evaluation Method Based on the Credibility Analysis of Prior Information for Torpedo System

同样，结果表明有逆Gamma先验信息要比无先验信息得出的结果要好。

Similarly , the result indicates that the result of inverted gamma prior is better than non-informative prior .

该模型为X射线成像系统空间分辨率和密度分辨率的初步设计和评定提供了理论依据，可作为X射线图像恢复算法中模糊函数的先验信息。

The model can be used to design or evaluate X-ray imaging system and can also be a pre-knowledge of blur function in X-ray image restoration .

在动态变形监测中先验信息可以通过不同的方法获得，所以它可以用来改善GPS模糊度解算。

In kine-matics deformation surveying , the prior geometry information can be obtained from different methods , so it can be used to improve GPS ambiguity .

利用先验信息来改进AMR系统中的信道解码性能

Improved Channel Decoding with a Priori Knowledge in AMR System

在土石坝等非线性材料反演分析中，考虑先验信息误差的Bayes随机反分析方法具有较好的适用性。

Bayes random method which considers the prior errors is better in the back analysis of embankment dam 's nonlinear materials .

先验信息的贝叶斯描述及MCMC方法在微波成像中的应用研究

Bayesian Representation of Prior Information And MCMC Method in Microwave Imaging

并结合光学图像和SAR图像，在不同数据域的先验信息，分别构造各自的目标函数，实现图像分辨率增强。

The examples for both optical and SAR images are presented , in which the object function are based on the sparse prior in different data domain respectively .

该方法的主要特点是引入了模型参数的协方差矩阵（Cm），使得反演过程能够利用模型参数的先验信息而加快收敛速度。

The main characteristic of the method is that it introduces a prior information matrix ( Cm ) of model parameters , and fastens the convergence of the iteration process .

子空间DOA估计方法的一个缺点是在子空间分解过程中难以利用信号的相关信息或有关DOA估计的先验信息改善DOA估计的性能。

One disadvantage with subspace-based DOA estimate method is that it is difficult to incorporate prior knowledge of the signal correlation into the eigen-decomposition .

因此本文采用模糊度函数进行搜索，利用一定的先验信息进行缩小搜索空间，最后利用F检验求解正确的模糊度。

So this paper uses the ambiguity function to search , uses some priori information to reduce the searching space , at last uses F-test to solve the accurate ambiguity . 3 .

该结果进一步验证了先验信息的精度对GPS水汽层析的不同影响，高精度的先验信息可进一步改善GPS水汽层析结果。

The results further validate the differential impact of the precision of priori information on GPS water vapor tomography . High-precision priori information can further improve the precision of GPS water vapor tomography results .

仿真结果表明，Bayes方法对先验信息的精确程度要求并不十分严格，能较好地解决雷达情报综合问题。

The results show that Bayes algorithm performs well in combining radar information for target identification because the need of prior probability is not too strict .

特别是先验信息融合的样条函数法，运用了经验Bayes理论，极大的降低了融合过程中引入主观信息的可能性。

Especially , by using the empirical Bayes theory , the prior information fusion method based on spline function can greatly decrease the subjectivity during fusion process .

先由GPS伪距单点定位、GPS星内差分定姿获得卫星间相对位置、卫星姿态的先验信息，再采用Bayes最小二乘进行编队星座状态整体确定。

Getting the apriority of relative positions between satellites and attitudes of satellite by using pseudo positioning and intra-CDGPS , the entire states of formation constellation have been resolved by Bayes Least Square .

第二步引入公路结构特征的先验信息，构造方向势能函数（DPF）。

In the second step , the prior knowledge about the road structure to construct directional potential function is introduced .

Bayes估计就是通过将参数视为随机变量，把先验信息与样本信息结合起来对参数进行估计，从而有效地克服了样本数据匮乏的缺点。

The Bayes estimation method combines prior information with sample information through counting the parameters as random variable , so it conquers the difficulty of short of sample data .

最后，针对Bayes方法在实际应用中的适用范围和有效性问题，设计了利用试验数据对先验信息进行相容性检验的方法。

Finally , to the usage domain and effectiveness of Bayes method , we develope a method which use the test data to examine the consistency of prior information .

MAP（最大后验估计）超分辨率复原是空域法中普遍采用的主流算法之一，其能灵活而鲁棒的描述噪声特性和空域先验信息，具有全局最优解存在、唯一等突出优点。

MAP ( maximum a posteriori ) SRR is one of the most popular and effective spatial SRR approach , which is flexible and robust in modeling noise characteristics and a spatial priori knowledge with a existent and unique global optimal solution .

最后以一实例说明如何根据有关的先验信息，确定先验参数及Bayes变形检验方法的应用效果。

Finally , taking a case history , it explains how to determine the a priori parameters and the application effect of the Bayes deformation examination method based on the a priori information .

多数CFAR检测器在多目标检测环境下需要关于干扰目标的先验信息，当检测环境发生变化时，这些检测器很难维持稳定的检测性能。

Most CFAR detectors need prior information on interfering'targets in a multi-target environment , and hence can not keep stable detection performance when the detection environment changes .

在利用Bayes理论对低压成套开关设备进行可靠性评估时，先验信息是整个可靠性评估方法的基础和关键，它对最终的可靠性评估结果有着很大的影响。

Prior information , has great impact on ultimate reliability assessment results , is the foundation and key of the entire reliability assessment method when low-voltage switchgear reliability is assessed by using Bayes theory .

实验结果表明：基于BrainWeb脑图谱先验信息引导下的改进FCM方法可以较好地克服噪声的影响，并且提高了图像分割的准确率。

The experiment results show that the improved FCM method based on the guidance of atlas prior information can better overcome the impact of the noise and improve the accuracy of image segmentation .