相对距离

基于相对距离的改进粗K-means方法

Improved algorithm of rough K-means based on relative distance

为此，本文选取GPS定位值、GPS伪距单差值和星间相对距离作为初始定位算法的基本量测，对编队卫星的相对位置进行精度较高的初始定位。

We first choose GPS location result , single difference of GPS pseudorange and relative distance between satellites as the foundation measurement of initial location algorithm .

航天GPS接收机为航天器提供航迹、姿态、时间和相对距离等导航信息，提高航天器运行的自主性。

Spaceborne GPS Receiver combines the ability to sense space vehicle trajectory , attitude , time and relative ranging between vehicles into on package , Therefore it enhances onboard autonomy of space vehicle .

该方法通过AP聚类选择代表训练样本，依据仿生模式识别理论构建和划分样本空间，根据待识样本到各特征子空间的相对距离判定所处空间并进行分类识别。

It can relatively classify the samples by calculating the distance to the relative subspace . The training sample space is constructed by the AP algorithm and bionic pattern recognition theory .

基因作图（genemapping）是指确定某一染色体上特定基因的位置排布和基因之间的相对距离，根据基因定位数据，把每一条染色体上已发现的基因位点绘制成基因图。

Gene mapping refers to the transfer of fang on a chromosome to determine the position of particular genes and gene MHD , according to the relative distance between the gene location data , each chromosome loci found on mapping are drawn .

应用参数自整定模糊-PID控制，对PID的3个参数进行调节，控制被控车与导航车的车间纵向相对距离误差和纵向相对速度误差的变化范围，以实现汽车纵向控制。

Then the parameter auto-adjusting fuzzy-PID control method was used by adjusting the three parameters of PID to control the varying errors for the longitudinal relative distance and relative velocity between the controlled vehicle and the navigation vehicle .

基于定位点集（LocatingPointsSet）中任意两点间的相对距离不变这一基本特征，指出了定位和配准问题的实质是在两个不完全等价的特征点集中寻求最大同构子集的问题。

Based on the characteristic of the relative distance between any of two points in the locating points set , the substance of matching was put forward , which is to seek the maximum isomorphic sub set in two non-equivalent feature points sets .

建立了基于视线转率的比例导引末制导模型，在获得目标航天器的相对距离信息基础上，分别研究了基于CW方程和相对运动解算的方法，对观测点视线转率进行求解。

Terminal guidance model based on turn rate of sight line was found . The turn rate of sight of observation point was resolved by CW equation and relative motion compute , with the information of distance .

首先选取训练集中最典型的一些样本，构造一个粗糙SVMs的分类超平面，用样本与这个超平面的相对距离定义隶属函数，将所有的训练样本都映射到一个带形区域；

Firstly , the learning machines select the most typical samples , such as the centers of two classes , to form the coarse classification hyperplane of SVMs named preformed hyperplane .

KMV模型的基本思想是：以违约距离DD（distanceto-default）度量公司资产的预期价值与违约点间的相对距离，违约距离越大，公司违约的概率就会越小，反之越大。

Distance to default is the measurement the relative distance between the expected value of the assets of the company and the default point . The greater the distance to default , the smaller the probability of default of the company .

利用基于Biot-Savart定律的修正的马蹄涡模型（ModifiedHorseshoeVortexModel，MHVM）可以将长机的翼尖涡在僚机上产生的诱导速度写成两机之间相对距离和相对方位的函数。

The velocities induced by the leader 's wingtip vortex on the following aircraft are written as a function of the relative separation in the three axial directions and also the relative orientation between the leader and the follower aircraft using a modified horseshoe vortex model based on Biot-Savart law .

根据CDMA信号模型和多径信道模型，估计室内用户信号到达已知位置的参考点的幅度衰减系数，然后根据室内传播损耗模型得到用户与参考点的相对距离，再利用参考点位置对用户进行定位。

Based on the signal model and the multipath channel model of CDMA , amplitude attenuation factors of the signals for indoor users arriving at reference points of known locations are estimated . Then the distances between users and reference points are obtained based on the indoor propagation loss model .

之后，将该种应用于单机器人的改进EKF-SLAM方法应用于多个机器人，在机器人会合时测量彼此之间的相对距离和角度，以利用该相对观测量进行局部地图的坐标转换与融合。

Then , the improved EKF-SLAM approach used in a single robot in common was extended to a multi-robot system . Relative observations between robots when meeting was processed to execute coordinate transformation and map merging .

卵母细胞中极体与核的相对距离随着卵龄的增加而加大，注射hCG后16h的卵母细胞只有70.4%的核位于极体附近，而到19h时，这一比例下降到60.5%。

The space between nuclear and the first polar body increase as the oocyte aged , the proportion of oocytes with the first polar body near to spindle deceased from 70.4 % to 60.5 % when the age of oocytes increased from 16h to 19h post-hCG injection ;

在高精度星间相对距离量测的支持下，定位精化算法采用强跟踪滤波技术有效抑制了J2摄动产生的模型误差，显著提高了相对定位的精度和滤波的稳定性。

Subsequently , in the support of high accuracy measurement of relative distance between satellites , location refinement algorithm significantly enhance the accuracy of relative allocation and the stability of filtering by strong tracking filter ( STF ) technology which effectively limits the model error arising from J2 perturbation .

基于扩频技术的相对距离自主测量方法研究

Research on Relative Autonomous Ranging Using Spread-spectrum Technology

基于角度和红外图像信息的弹目相对距离算法

Research and Simulation of Missile-Target Relative Distance Algorithm Based on Angle and Infrared Image Information

对于任何一个点，你都能在屏幕上找到阴影，软件总是能够计算出这个点的相对距离。

In every point you 'll find the shadow , the software always estimates the distance .

然后分别介绍了基于数据值和相对距离测度的均值生成插值和级比生成插值；

Then the interpolation model and algorithm based on data and relative distance measure are introduced respectively .

提出并实现基于已知特征点相对距离的摄像机标定方法。

A camera calibration method is proposed and realized based on the relative distance of feature points .

空间拦截红外末制导中拦截器与目标相对距离的估计

Estimation of the range between the intercepter and the target during infrared terminal guidance of space interception

相对距离测定表明其性状总体处在野生稻和籼稻的过渡阶段。

Distance coefficient showed that the rice was in the transition stage from wild to indica rice .

同源基因之间的相对距离在增殖期明显大于静止期。

The relative distance between the homologous genes was greater at proliferation phase than at quiescence phase .

为了应用概率统计规律解决机械阻力问题，分析了颗粒碰撞过程及相对距离、颗粒个数及碰撞方向。

This paper tries to resolve the problem of mechanical drag force by the rule of probability and statistics .

当相对距离接近危急区时，给出声/光警示信号或自动紧急刹车指令；

The audible and light alarm signal or automatic brake order is provided when the relative distance reach the critical threshold value .

与中位相比，低位的静脉深度、动静脉体表相对距离和动静脉夹角也均显著减小，重叠覆盖程度显著增大。

The distance and angle were significantly decreased and the overlapping was significantly increased at the low points compared to middle point .

接着考虑安全性和编队飞行相对距离的限制，研究了绕飞轨道的相对轨道要素取值范围，详细推导了大气阻力摄动与地球扁率摄动的相对摄动表达式。

Then , considering safety and limit of relative distance of formation flying , the select area of relative orbit elements are studied .

专家还相信，眼睛到嘴巴之间的相对距离应该刚好超过发际线到下巴距离的1/3。

Experts also believe the relative distance between eyes and mouth should be just over a third of the measurement from hairline to chin .

针对图像检索的特点，将分形码中的位置参数替换为相对距离与方向系数。

In view of feature of image retrieval , the position parameter of IFS code is replaced with the relative distance and direction parameter .

为了自主完成诸如分布式雷达成像等任务，需要获得多个目标之间实时、高精度的相对距离，并进行数据交互。

In order to accomplish the mission of distributing measurement , such as distributing radar imaging , it requires high-accuracy real-time multi-object ranging and communication .