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enalem
The program computes and plots the equation of time, the declination, and an analemma curve for various orbital parameters. The analemma is the curve traced by the position of the sun, measured at clock noon, over a year.
- 2014-08-14 05:04:08下载
- 积分:1
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ShenhongUPQC
微电网中统一电能质量调节器控制方法研究,希望对大家有用(Unified power quality conditioner control method in the micro grid research)
- 2014-11-06 17:13:51下载
- 积分:1
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适用于捷联惯导系统(SINS)初始对准的新算法self-alignment
在运载体运动情况下,提出了一种适用于捷联惯导系统(SINS)初始对准的新算法,该算法以惯性空
间为过渡参考基准,即建立了初始时刻惯性坐标系(i0系)和初始时刻捷联惯组惯性坐标系(ib0系)两个惯性坐标
系。将捷联惯组坐标系(b系)与导航坐标系(n系)之间的初始对准姿态矩阵的实现分解为三步骤:(1)通过地理
位置和初始对准时间求解i0系至n系的变换矩阵 (2)通过惯导比力方程变形,引入测速仪速度辅助,求解从ib0
系至i0系的常值变换矩阵 (3)使用姿态更新算法实时计算b相对于ib0系的变换矩阵。最后,载车运动环境下的
初始对准试验结果表明航向角对准精度达到了0.1b(1R)。
(On the moving base, a new initial alignment algorithm for strapdown inertial navigation system
(SINS) is proposed. In this algorithm, two special inertial frames, the initia-l time inertial frame (i0frame) and
the initia-l time SINS body inertial frame (ib0frame), are defined and are selected as transition reference frames.
The calculation of initial alignment direction cosine matrix (DCM) between SINS body frame (bframe) and nav-
igation reference frame (nframe) is expanded into three parts: (1) the DCM betweeni0frame andnframe is
easily obtained via local geographical coordinates and initial alignment time (2) by expressing SINS specific
force equation inbframe and by the aid of external velocity log, the constant DCM fromib0frame toi0frame is
achieved (3) attitude updating using gyro samples gets the DCM betweenbframe andib0frame. In the end,
some vehicular tests are carried out on the moving base and the accuracy of azimuth reaches about 0.1b(1R).
)
- 2015-08-23 07:58:59下载
- 积分:1
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MATLAB5
本书按逻辑编排,自始至终用实例描述;内容完整且每章相对独立;是一本简明的MATLAB参考书,既适用于初学者,也适用于高级MATLAB用户。(This book logically arranged from beginning to end examples describing the content of complete and relatively independent of each chapter it is a simple MATLAB reference books, both for beginners, but also to high-level MATLAB users.)
- 2009-10-23 16:46:51下载
- 积分:1
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1
说明: 煤焦在氧气氮气气氛下燃烧时内扩散因子的运算(Char under an atmosphere of nitrogen diffusion of oxygen within the combustion operation Factor)
- 2014-02-15 16:31:56下载
- 积分:1
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Wavelet_Decomposition_For_Images-(1)
matlab codes for project
- 2014-09-02 00:43:38下载
- 积分:1
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p6
说明: Voltage distribution in a triangle
- 2014-11-09 16:04:34下载
- 积分:1
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ukf
一个非线性滤波器的实现程序,能够实现其基本的功能,对于初学者很有帮助。(A nonlinear filter is implemented procedures to achieve its basic functionality, useful for beginners.)
- 2013-11-12 19:23:22下载
- 积分:1
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linear_mimo
可以实现MIMO波束的形成,可以实现MIMO波束的形成,可以实现MIMO波束的形成,可以实现MIMO波束的形成,可以实现MIMO波束的形成,可以实现MIMO波束的形成,(Beam forming MIMO can be realized,Beam forming MIMO can be realized,Beam forming MIMO can be realized,Beam forming MIMO can be realized,Beam forming MIMO can be realized,)
- 2021-03-10 17:09:26下载
- 积分:1
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MATLAB_basic_operation_of_electronic_documents
MATLAB基本操作电子文档MATLAB basic operation of electronic documents(The basic operation of electronic documents MATLAB MATLAB basic operation of electronic documents)
- 2010-08-08 21:12:36下载
- 积分:1