球坐标系

在矢量分析范围内给出2a的一种较好定义，并推导出2a在任意正交曲线上标系，特别是柱坐标系、球坐标系的表达式。

Within the scope of vector analysis , we give a better definition of 2a , and derive the expressions of in any orthogonal curvilinear coordinate system , especially in cylindrical and spherical coordinate systems .

本文在直角坐标系、柱坐标及球坐标系中研究一维匀速活塞在强引力场中的动力学过程。

In this paper , the dynamic process driven by one-dimensional piston in strong gravitational field was studied on the Cartesian , cylinderical and spherical coordinates .

如果用柱或球坐标系，最常见的，是先对z积分。

If you are doing rectangular or cylindrical coordinates with z first , for example , that is the most common .

最后，论述了无线传感器网络定位技术的研究现状与意义，着重研究了超声测距方法，结合应用背景要求，提出了基于球坐标系的倒GPS超声定位算法。

Finally , the paper makes focus on the ultrasonic distance measurement method combined with background requirements and makes researches into node localization solution of the use of inverse GPS ultrasonic distance measurement .

在一维球坐标系下模拟了1998年11月4日至5日3个连续日冕物质抛射（CME）在行星际空间的传播和相互作用并最终形成复杂抛射的日地传输过程。

The solar-terrestrial transit process of three successive CMEs during November 4-5 , 1998 has been investigated numerically in one-dimensional spherical geometry .

所以说球坐标系，其实就是在rz平面再建立一个极坐标。

So the idea of spherical coordinate is you 're going to polar coordinates again in the rz plane .

针对红外机动目标跟踪仅有角度量测的特点，引入了基于修正球坐标系的扩展Kalman滤波器，并对目标状态模型及其线性化方程进行了推导，建立了扩展Kalman滤波方程组。

The extended kalman filter is introduced based on modified spherical coordinates used to infrared maneuver target tracking with angle-only measurements , with emphasis on inducing the mathematical model of target dynamic and the extended Kalman filter equations .

该方法以球坐标系中三通道解耦自适应卡尔曼滤波为基础，结合最近邻（NN）方法或概率数据关联滤波（PDAF）方法实现杂波中的机动目标跟踪。

Based on adaptive Kalman filter in polar coordinates , the algorithm was implemented with NN method and PDAF to fuse sensors in clutter .

本文利用过渡矩阵，先把Navier-Stokes方程中的粘滞应力张量由笛卡儿坐标系变换到球坐标系，然后对Navier-Stokes方程进行球坐标列矢量变换。

Puts forward a simple method using the transitional matrix . Firstly transforms Cartesian coordinates of stress tensor , which in Navier-Stokes equation , to spherical coordinate , then does vector transform of spherical coordinate to Navier-Stokes equation .

在球坐标系和直角坐标系下我们用Einstien-Tolman（E-T）表述计算球对称静态引力场的能量密度，发现在球坐标系下能量密度为负，而在直角坐标系下能量密度为正；

It is found that energy density of static sphere symmetry of gravitational field is negative in the sphere coordinates and their energy density is positive definite in the Cartesian coordinates .

最早由Ursell（1949）提出的多极展开法是一种在极坐标和球坐标系下解析求解海洋工程水动力学问题的方法，可提供深水中速度势有效精确的表达形式。

The multipole expansion method , first proposed by Ursell ( 1949 ), is an analytic method for solving hydrodynamic problems in ocean engineering in polar coordinates and spherical coordinates , which will provide an effective and accurate form of the velocity potential in deep water .

球坐标系下三维射线追踪的方法和应用

The methods and applications of 3D ray tracing on spherical coordinate

球坐标系下的小波图像去噪方法

Method of Image Denoising Based on Wavelet Transform in Spherical Coordinates

球坐标系中水下目标跟踪的研究

The Study of Underwater Targets Tracking In Spherical Coordinate System

球坐标系下具有抗干扰能力的弹道导弹跟踪算法

Ballistic Missile Tracking Algorithm with Anti-Jamming Capability in Spherical Coordinates

基于扩展量测的球坐标系中水下目标跟踪算法的研究

A New Extending Measurement Algorithm for Tracking Underwater Targets in Spherical Coordinate Systems

球坐标系中速度与加速度的转动参考系求法

A Derivation of Velocity and Acceleration in Spherical Coordinate by Rotation Reference Frame Method

谈球坐标系中质点运动速度、加速度公式的直接推导

The Direct Deduction of Velocity and Acceleration of a Particle in Spherical Coordinate System

球坐标系下多普勒雷达目标跟踪滤波器

Doppler Radar Target Tracking Filter in Spherical Coordinates

基于球坐标系的非线性小波变换去噪算法

Nonlinear Wavelet De-Noising Algorithms Based on Spherical Coordinates

我们有直角坐标系，有柱坐标系和球坐标系。

We have rectangular coordinates , we have cylindrical coordinates and we have spherical coordinates .

球坐标系中的战术导弹跟踪

Tracking a Tactical Missile in Spherical Coordinates

球坐标系中导出轨道角动量算符表示式的简单方法

A simple method to introduce the expression of orbital angular momentum operators in spherical co-ordinates

三维球坐标系下波包非线性传播过程的一种数值求解方法

A numerical solution method of nonlinear propagation of GRAVITY-WAVE packet in a 3-dimensional spherical coordinate system

导出了重力、高程变化及相互关系在球坐标系中的理论和数值计算公式。

The theoretical and numerical formulas for gravity and height variations in spherical polar coordinates are derived .

在现今海洋基本动力方程基础上导出了球坐标系下的海水温度共轭方程。

The adjoint equation of the sea temperature is derived based on the modern global ocean dynamical model .

据梯度、散度、旋度的定义，用物理的方法给出了在球坐标系中的表达式；

According to the definitions of grads , divergence and rotation , the expression in spherical coordinate system is given from the point of physics .

在柱坐标和球坐标系下，所有场分量都只有一条零线，场为半平面分布状态。

In the cylindrical and spherical coordinate systems , all the field component fields have merely one zero line and are characterized by half-plane distribution .

本文对直接表示方法存在的问题进行了讨论，提出了一种新的基于地图投影的向量可视化方法，并给出了球坐标系下的向量可视化方法，推导出坐标和向量的变换公式。

We analyze its problems , and propose a vector display method based on cartography and in the sphere coordinate system , evolve the formula .

文章利用球坐标系中单位矢量与直角坐标系中的单位矢量的关系给出了球坐标系中质点运动速度、加速度公式的直接推导。这将对力学、理论力学中有关内容的教学有所帮助。

The article presents direct deduction of velocity and acceleration of a particle in spherical coordinate system , which helps the teaching of theoretical mechanics .