在小目标远场情况下，极坐标格式算法(PFA)能够基本消除MTRC，这种算法需要在空间频域进行从极坐标分布到直角坐标分布的二维插值。
Polar formation algorithm (PFA) can mostly compensate MTRC in the case of small target and distant field, which need the transformation from polar grid to Cartesian lattice.
建立了采样数据为直角坐标值、坐标原点可以任意选取、各离散采样点之间也不要求为等角度间隔情况下，圆柱度误差评定的最小二乘数学模型。
This paper models the least square algorithm of the cylindricity error in the rectangular coordinates, whose center may be set on random and all discrete data can be sampled optionally.
本文提出了在直角坐标系下静态电压稳定临界点的一种直接计算方法。
In this paper, a direct method for static voltage collapse point in rectangle coordinate is presented.
指出在田间条件下，用直角双曲线拟合得到的初始量子效率偏高。
It is found that initial quantum yield obtained by fitting rectangle hyperbola is higher than its real value.
基于微机原理中汇编语言程序执行的实时性特点，设计了在微机显示器屏幕上画直角坐标系下的动态变化图。
Basing on the well-timed characteristics that the assemble language has when executing. A dynamic diversification chart in rectangular coordinate is designed for display screen.
在同样水力条件下，最优园底直角断面的湿周是矩形最优断面的83.7%。
The wetted perimeter of this section is 83.7% of the rectangle in the same discharge, reach slope, roughness coefficient.
该滤波算法将球坐标系中的测量信息转换到直角坐标系下进行滤波，并消除了偏差。
In this algorithm, the measured value of seeker initially set in polar coordinate system was converted into the rectangular coordinate system for filtering, and the bias was eliminated.
随着与地下水有关的工程活动的逐步复杂化，任意直角坐标系下潜水渗流问题日渐多见。
As engineering activities related to groundwater are getting more and more complicated, seepage problems in arbitrary rectangular coordinates system can be often met.
用泰勒级数法推出直角坐标系下亥姆霍兹方程的七点差分格式和九点差分格式；
The seven-grid difference format and nine-grid difference format of Helmholtz equation in right coordinate in the way of Taylor series method have been derived.
在水下被动目标跟踪系统中，直角坐标系下的扩展卡尔曼滤波器容易发散而导致滤波精度很差。
Concerning the problem to instability and low accuracy of the passive filter on bearings-only target tracking, a modified adaptive Extended Kalman filter algorithm on polar coordinate is presented.
首先提出在直角坐标系下将天球球面均匀地分成486个分区的方法——“内接正方体法”，实现导航星的快速检索。
With 486 partitions, an equal partition method of celestial sphere without overlap is firstly presented to speed up guide star indexing.
针对直角坐标系下圆周截面形状误差评价，介绍了一种圆柱体截面圆度误差的测量与评定方法。
This article introduced a general method of drawing plane right-angle coordinates in Borland c++Builder 6 and explained how to use its code in detail.
在两条基线相交成直角的情况下，如果两条基线长度相等，则测最精度与基线的方位角无关；
When one baseline is kept to be perpendicular to another, if their lengths are equal, the accuracy does not vary with their azimuths;
当我们看到锐角的时候，我们的视觉神经会无意识的把它看成是直角，所以在这张图里面，垂直的红线就在这种机制的作用下被撑的看起来有了弧度。
When we see a sharp Angle, our mind tries to adjust it to a right angel. In this optical illusion, the straight, red lines are pushed out and look rounded.
当我们看到锐角的时候，我们的视觉神经会无意识的把它看成是直角，所以在这张图里面，垂直的红线就在这种机制的作用下被撑的看起来有了弧度。
When we see a sharp Angle, our mind tries to adjust it to a right angel. In this optical illusion, the straight, red lines are pushed out and look rounded.
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