Based on signal energy received by receiving radar,we built up a distance estimation model,proposed a new algorithm for distance estimation based on structure stochastic jump optimal filter theory,and realized distance estimation of passive radar.
根据接收雷达接收到的信号能量,建立了被动雷达距离估计模型,提出了一种基于结构随机跳变系统最优滤波理论的距离估计算法,实现了被动雷达对目标的距离测量。
Based on the principle of measuring the distance of the target’s infrared irradiation,a distance estimation model with Markov jump parameters was presented which was aimed at maneuvering point targets.
针对机动飞行的空中点目标,利用测量目标红外辐照度变化的测距原理,建立了具有Markov跳变参数的红外系统距离估计模型,基于结构随机跳变系统最优滤波理论,提出了一种新的红外系统距离估计算法。
Aiming at maneuvering point targets flying in the sky,a uniform missile-borne passive system(include infrared passive system and passive radar system) distance estimation model with Markov jump parameters is built by using the spectra radiation illuminance of the targets.
针对空中作机动飞行的点目标,利用弹载被动系统(包括红外被动系统和被动雷达系统)测量的目标光谱辐射照度信息,建立了具有Markovk跳变参数的统一目标距离估计模型。
Then the range estimation was performed with the estimated DOA through finite one-dimensional searching.
该算法利用四阶累积量矩阵的特征值估计DOA,通过在估计的DOA下进行有限的一维搜索得到距离估计。
In this paper, we present theoretical analyses of the target range spectrum and the effects on the range spectral amplitude due to the target movements,based on which we propose a novel high-accuracy instantaneous range estimation algorithm in HF chirp radars.
本文分析了目标的距离谱及目标的运动对其瞬时幅度的影响,提出了一种新的高精度目标瞬时距离估计方法。
On the contrast,this paper provided an in-depth analysis of the ranging step in RIPS,and used simulation experiments to research the quantificational impact on the range estimation precision of phase error distribution,channel number,channel interval and searching space,etc.
文章针对现有文献对干涉定位系统性能分析方面存在的不足,选择干涉距离估计环节作为研究对象,通过仿真实验定量研究了相位误差分布、频点数量、频带间隔、搜索区间等因素对干涉距离估计精度的影响,不仅为无线电干涉定位系统在不同应用场景中的参数设置和性能优化提供了依据,也为硬件升级等系统结构改造指明了研究方向。
Fast calculating minimum distance between point and complex curve with subpision approximating algorithm
分割逼近法快速求解点到复杂平面曲线最小距离
The minimum distance between two free form surfaces is widely used in selecting the cutter diameter and detecting interference during NC machining of complex part.
曲面间最小距离的求解 ,广泛用于复杂曲面零件数控加工的刀具半径选择和干涉处理中 。
To use the frequency spectrum characteristics in texture classification of remotely sensed imagery,a texture classification algorithm based on minimum distance in frequency space is put forward.
为了将频谱对纹理特性的表征能力应用于遥感图像分类提出了基于频域最小距离遥感图像纹理分类算法。
Finally,we recognize gesture patterns be means of minimal distance of feature pixels.
将图像的轮廓看成一条曲线,采用HDC(HierarchicalDiscreteCorrelation)方法用一个内核对曲线进行多次平滑,得到曲线的尺度空间,再通过跟踪曲线在尺度空间中的运动找出手势轮廓的关键点,最后通过最小距离法对手势进行识别。
Simulation Research on Range Estimation Algorithm in Radio Interferometric Positioning System
无线电干涉定位系统距离估计算法的仿真研究
Could you judge the distance?
你能估计这段距离吗?
I make the distance about 500 miles.
我估计距离约为500 英里。
They estimated the distance by the eye.
他们目测估计距离。
The distance was approximated as five kilometers.
估计这段距离为五公里。
I make the distance twenty miles.
这段距离我估计是20英里。
An Efficient Selectivity Estimation for Distance Joins
一种有效的距离连接选择度估计方法
Nine out of ten, a driver can estimate the correct distance.
驾驶员十有八九能估计出正确的距离。
This hinders an accurate measurement or estimate of distance.
这就妨碍了精确的测量或估计距离。
We approximated the distance at three miles.
我们估计距离约为3 英里。
I make the distance about 70 miles.
我估计那段距离约有70英里.
We approximated the distance at 100 miles.
我们估计行程距离为100英里。
I make the distance ten miles.
这段距离我估计是十英里。
ESTIMATIONS OF ERROR FOR INTERPOLATION NEURAL NETWORKS IN DISTANCE SPACES
距离空间中插值神经网络的误差估计
We approximated the distance between the two cities at 100 miles.
我们估计这两个城市之间的距离约为100 英里。
We judge the distance from remembered comparisons
我们从回忆的比较中来判断(估计)这段距离。
Research on Extended Target Detection and Parameter Estimation
距离扩展目标检测与参数估计方法研究
Automatic Estimation Algorithm of Component Number of Mixture Model Based on Penalized Distance
基于惩罚距离的混合模型分量数自动估计算法