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1)  partial distance evaluation
局部距离估计
2)  distance estimation
距离估计
1.
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。
2.
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。
3.
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。
3)  range estimate
距离估计
4)  range estimation
距离估计
1.
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。
2.
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。
3.
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。
5)  local estimate
局部估计
1.
In this paper,the authors improve the coefficient s of the local estimates on harmonic functions’ derivatives from Ck =(2 n+1nk)kα(n) to Ck =(n+k) n+kα(n)n n-k , k∈N, by employing induction and mean-value formulas for harmonic func tions and by looking for the maxima of functions.
本文利用归纳法和调和函数的平均值公式,并通过寻求函数的最大值,把调和函数k阶偏导数的局部估计式的系数由Ck=(2n+1nk)k/α(n)缩小到Ck=(n+k)n+k/α(n)nn-k。
6)  local tangent distance
局部切距离
补充资料:60钴远距离治疗


60钴远距离治疗


利用60钴所产生的高能γ射线作远距离治 疗。60钴还可进行腔内或组织间治疗。见"X线治疗"。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条