Description: Integral of a product of three 6-dimensional spherical harmonic-Integral of a product of three 6-dimensional spherical harmonic Platform: |
Size: 13312 |
Author:peterye |
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Description: 绘制月球磁场分布图，178阶球谐函数编制，目前最准确的月球磁场模型-Drawing the lunar magnetic field maps, the 178 order spherical harmonics preparation, most accurate lunar magnetic field model Platform: |
Size: 1024 |
Author:liuhao |
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Description: HWM是一个水平上热层中性风的经验模型。它是基于AE-E和DE 2卫星数据获得的。矢量球谐是用来描述一组有限的经向和纬向风分量。第一个版本发布于1987年（HWM87）的模型被用于超过220公里的大风。风的数据列入非相干散射雷达和陆基法布里 - 珀罗光学干涉仪，HWM90向下延伸到100公里，并使用MF/流星数据HWM93延伸到地面。HWM90受太阳活动周期的变化较小，而且并不总是很清楚地划定是当前的数据。该模型描述了从上热层为主的昼夜变化半日变化，低热和过渡从夏季到冬季，冬季到夏季流量低于流量140公里以上的过渡。在一些地方海拔在风中向上延伸至300公里。该模型软件提供指定的纬度，经度，时间，和Ap指数的经向和纬向风。-Brief Description:
The HWM is an empirical model of the horizontal neutral wind in the upper thermosphere. It is based on wind data obtained from the AE-E and DE 2 satellites. A limited set of vector spherical harmonics is used to describe the zonal and meridional wind components. The first edition of the model released in 1987 (HWM87) was intended for winds above 220 km. With the inclusion of wind data from ground-based incoherent scatter radar and Fabry-Perot optical interferometers, HWM90 was extended down to 100 km and using MF/Meteor data HWM93 was extended down to the ground. Solar cycle variations are included (since HWM90), but they are found to be small and not always very clearly delineated be the current data. Variations with magnetic activity (Ap) are included. Mid- and low-latitude data are reproduced quite well by the model. The polar vortices are present, but not to full detail. The model describes the transition from predominately diurnal variations in the upper therm Platform: |
Size: 20480 |
Author:Liu Jin |
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Description: 球谐函数的demo，将球谐函数可视化，加深对球谐函数的理解，对高级光照打下坚实数学基础。
我费了好大得劲，也是我在别人代码的基础上改的。-Spherical harmonics demo ball harmonic function visualization, understanding spherical harmonics, advanced lighting and lay a solid mathematical foundation. I take a great handy, I changed on the basis of someone else' s code. Platform: |
Size: 4096 |
Author:周舟 |
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Description: Spherical harmonic wavelets or Legendre wavelets are compactly supported wavelets, which are derived from Legendre polynomials. These wavelets are suitable for problems of spherical symmetry since they correspond to the colatitudinal part of "spherical harmonics" in spherical polar coordinates.
reference URL
Platform: |
Size: 2048 |
Author:无界 |
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Description: HWM是一个水平上热层中性风的经验模型。它是基于AE-E和DE 2卫星数据获得的。矢量球谐是用来描述一组有限的经向和纬向风分量。第一个版本发布于1987年（HWM87）的模型被用于超过220公里的大风。风的数据列入非相干散射雷达和陆基法布里 - 珀罗光学干涉仪，HWM90向下延伸到100公里，并使用MF/流星数据HWM93延伸到地面。HWM90受太阳活动周期的变化较小，而且并不总是很清楚地划定是当前的数据。该模型描述了从上热层为主的昼夜变化半日变化，低热和过渡从夏季到冬季，冬季到夏季流量低于流量140公里以上的过渡。在一些地方海拔在风中向上延伸至300公里。该模型软件提供指定的纬度，经度，时间，和Ap指数的经向和纬向风。-The HWM is an empirical model of the horizontal neutral wind in the upper thermosphere. It is based on wind data obtained from the AE-E and DE 2 satellites. A limited set of vector spherical harmonics is used to describe the zonal and meridional wind components. The first edition of the model released in 1987 (HWM87) was intended for winds above 220 km. With the inclusion of wind data from ground-based incoherent scatter radar and Fabry-Perot optical interferometers, HWM90 was extended down to 100 km and using MF/Meteor data HWM93 was extended down to the ground. Solar cycle variations are included (since HWM90), but they are found to be small and not always very clearly delineated be the current data. Variations with magnetic activity (Ap) are included. Mid- and low-latitude data are reproduced quite well by the model. The polar vortices are present, but not to full detail. The model describes the transition from predominately diurnal variations in the upper therm Platform: |
Size: 19456 |
Author:jlp |
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Description: 本片文章主要介绍的是球谐函数的主要性质，功能以及其在各个领域的应用-This film article introduces the main properties of spherical harmonic function, function and its application in various fields Platform: |
Size: 656384 |
Author:田澍 |
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Description: This a simple function which caculates the spherical harmonic.The archive includes four M files ,and the file Comx_Sph.m is the main function.Given the degree l ,the index m and the variable x ,you can get the value of spherical harmonic.For more details ,you may read the programs.-This is a simple function which caculates the spherical harmonic.The archive includes four M files ,and the file Comx_Sph.m is the main function.Given the degree l ,the index m and the variable x ,you can get the value of spherical harmonic.For more details ,you may read the programs. Platform: |
Size: 1024 |
Author:fan |
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Description: This program displays a simple looking scene (actually containing approximately 25,000 vertices) which can be lit in 3 different ways. As well as standard OpenGL lighting, the scene can be lit by two techniques which make use of spherical harmonics. This method produces global illumination style images in real time, but usually only for static objects. Platform: |
Size: 1759232 |
Author:周溢 |
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Description: Cram ́ er-Rao bound (CRB) has been formulated in
earlier work for linear, planar and 3-D array configurations. The
formulations developed in prior work, make use of the standard
spatial data model. In this paper, the existence of CRB for the
spherical harmonics data model is first verified. Subsequently, an
expression for stochastic CRB is derived for direction of arrival
(DOA) estimation in spherical harmonics domain. The stochastic
CRBs for azimuth and elevation are plotted at various Signal
to Noise Ratios (SNRs) and snapshots. It is noted that a lower
bound on the CRB is attained at high SNR. A similar observation
is made when larger number of snapshots are used. Platform: |
Size: 147456 |
Author:lalan |
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Description: 利用12阶12次勒让德球谐函数准确计算地球表面及近地空间的地磁场信息，输入参数：三维地理位置（纬度、经度、海拔高度（以千米为单位））和时间（小数年），输出：地磁场的7个量，包括：地磁场总强度F、地磁场水平分量H、北向分量X、东向分量Y、垂直分量Z以及地磁偏角D和磁倾角I。-The use of the order of 12 12 Legendre spherical harmonics geomagnetic information to accurately calculate the Earth s surface and near-Earth space, the input parameters: three-dimensional location (latitude, longitude, altitude (in kilometers)) and time (decimal years ), output: 7 amount of the geomagnetic field, including: geomagnetic total intensity F, the horizontal component of the geomagnetic field H, northward component X, east component Y, Z, and the vertical component of magnetic declination D and inclination I. Platform: |
Size: 748544 |
Author:丁伟 |
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Description: HRTF magnitude modeling using a non-regularized least-squares fit of spherical harmonics coefficients on incomplete data Platform: |
Size: 319488 |
Author:xiaowang |
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Description: 分析了该信号的时域、频域、倒谱，循环谱等,对球谐函数图形进行仿真,关于神经网络控制。- Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Of spherical harmonics graphic simulation, On neural network control. Platform: |
Size: 6144 |
Author:吴银利 |
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Description: This function generates the Spherical Harmonics basis functions of degree L and order M. Platform: |
Size: 12288 |
Author:wmy53530 |
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