Description: 一个相当好用的matlab函数，由美国国家可再生能源实验室科研人员设计，可以计算太阳的直射维度和方位角。只要输入时间、观测地点即可。 -This algorithm is based on numerical approximation of the exact equations.
The authors of the original paper state that this algorithm should be
precise at+/- 0.0003 degrees. I have compared it to NOAA solar table
(http://www.srrb.noaa.gov/highlights/sunrise/azel.html) and to USNO solar
table (http://aa.usno.navy.mil/data/docs/AltAz.html) and found very good
correspondance (up to the precision of those tables), except for large
zenith angle, where the refraction by the atmosphere is significant
(difference of about 1 degree). Note that in this code the correction
for refraction in the atmosphere as been implemented for a temperature
of 10C (283 kelvins) and a pressure of 1010 mbar. See the subfunction
un_topocentric_zenith_angle_calculation� for a possible modification
to explicitely model the effect of temperature and pressure as describe
in Reda & Andreas (2003). Platform: |
Size: 1334272 |
Author:孙林 |
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Description: 在聚光型太阳能热发电系统中。聚光装置需要实时跟踪太阳。以提高发电效率，在开环控制的太阳跟踪系统中，太阳位置的计算精度更为重要。比较了几种常用计算太阳位置的简单方法，并总结出一种算法简单的
高精度太阳位置计算方法，此方法的高度角、方位角计算最大误差分别为O．05，O．13-In the concentrating solar thermal power systems. Need real-time tracking solar concentrator devices. To improve power generation efficiency, the open-loop control of the solar tracking system, the sun' s position accuracy is more important. Compares several commonly used simple way to calculate the position of the sun, and concluded that an algorithm simple method of calculating high-precision position of the sun, this method of elevation angle, azimuth calculating the maximum error of O. 05, O. 13 Platform: |
Size: 380928 |
Author: |
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Description: Solar Position Algorithm for Solar Radiation Applications 太陽軌跡計算參考資料,為美國能源實驗室所寫出的一套演算法,經度可達0.0003 -There have been many published articles describing solar position algorithms for solar radiation applications. The best uncertainty achieved in most of these articles is greater than ±0.01/ in calculating the solar zenith and azimuth angles. For some, the algorithm is valid for a limited number of years varying from 15 years to a hundred years. This report is a step by step procedure for implementing an algorithm to calculate the solar zenith and azimuth angles in the period from the year-2000 to 6000, with uncertainties of ±0.0003/. The algorithm is described by Jean Meeus [3]. This report is written in a step by step format to simplify the complicated steps described in the book, with a focus on the sun instead of the planets and stars in general. It also introduces some changes to accommodate for solar radiation applications. The changes include changing the direction of measuring azimuth angles to be measured from north and eastward instead of being measured from south and eastward Platform: |
Size: 1310720 |
Author: |
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Description: 该算法能够根据地球上任意位置计算其日出、日落时间，能够计算该地在指定时间的太阳高度角、方位角，能够计算日地距离、太阳位置等。-The algorithm can calculate the sunrise and sunset time according to any position on the earth. It can calculate the solar altitude angle and azimuth angle of the ground at the appointed time. Platform: |
Size: 6144 |
Author:胡雨幕 |
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Search - Solar Position Algorithm