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是程序计算从选定的点的地形图的可见性。我..
这个程序可以计算给定点处的小区信号范围覆盖。-is program computes a map of visibility from a selected point on a topography. It has been written to help the search for radio relay best location. Because it considers only direct line of sight, it gives a good estimation for possible radio link for short distances only (less than 10 km), neglecting curvature of the Earth, Fresnel zone and atmospheric refraction on radio waves propagation. The program computes the relative elevation angle of the mask for each point (the angle is null or negative if the point is visible).
The function needs a digital elevation model Z and associated (X,Y) vectors or matrices of coordinates (same unit as Z), position of the point (X0,Y0), the antenna height H0 (for instance 4 m), and the hypothetic antenna height Ha on each topography points (for instance 3 m). When no output argument is given, the function plots a map of the results (color map of mask angles, and blank for visible points, see example screenshot).
The s
- 2022-06-27 17:42:17下载
- 积分：1
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一个粮情监控的PCB板，protel绘制，已在工程中实现。
一个粮情监控的PCB板，protel绘制，已在工程中实现。-A grain PCB board to monitor the situation, protel draw.
- 2022-09-06 13:15:03下载
- 积分：1
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这是一个汉字点阵显示的示例，很有用的，尤其是在屏幕上显示的时候...
这是一个汉字点阵显示的示例，很有用的，尤其是在屏幕上显示的时候-This is a Chinese character dot-matrix display example, the very useful, especially in displayed on the screen when
- 2022-03-11 23:55:31下载
- 积分：1
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问题描述:
一杯沸水冷却，圆柱体模型，底面半径0.05m，高0.1m，周围温度20度，初始水温100度
方程是四维输运方程（常数a^2=k/(c*...
问题描述:
一杯沸水冷却，圆柱体模型，底面半径0.05m，高0.1m，周围温度20度，初始水温100度
方程是四维输运方程（常数a^2=k/(c*p)，k是热传导系数0.6006焦/（米*秒*度））
初始条件：t=0时水等于100度
边界条件：1.上下壁都是自由冷却，第三类边界条件，周围温度保持在20度（H=k/h,h取1）
2.杯壁绝热，第二类边界条件
图形显示格式,取过圆柱轴的截面温度变化将其做成动画.
-Problem description : a cup of boiling water cooling cylinder model, the bottom radius of 0.05m, 0.1m high. temperature around 20 degrees, initial temperature of 100 degrees equation is four-dimensional equations (a constant ^ 2 = k/(c* p), k is the thermal conductivity coefficient of 0.6006 Coke/(m** seconds degrees)) initial conditions : t = 0 to 100 degree water boundary conditions : 1. upper and lower walls are free cooling, the third boundary conditions, maintain the temperature around 20 degrees (H = k/h, h for 1) 2. Beibi insulation, The second category boundary conditions graphics format, cylindrical shaft for the cross section of its temperature changes caused animation.
- 2022-05-12 17:55:03下载
- 积分：1
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HHT变换的matlab程序，初学者希尔伯特
hht希尔伯特变换的matlab程序，适合初学者使用-hht Hilbert transform Matlab procedures for beginners
- 2022-03-09 11:36:40下载
- 积分：1
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Download the compilation of SVM information, click View, more comprehensive info...
SVM资料下载汇编，可点击查看，资料较全面-Download the compilation of SVM information, click View, more comprehensive information
- 2022-04-18 18:55:21下载
- 积分：1
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大学计算机基础课程 电子技术实验 用Multisim2001编写 实验内容 应用运算放大器放大81倍的电路设计图...
大学计算机基础课程 电子技术实验 用Multisim2001编写 实验内容 应用运算放大器放大81倍的电路设计图-University computer based courses using electronic technology experiment prepared Multisim2001 experimental content applications Operational amplifier circuit 81 times the design
- 2022-03-31 06:31:17下载
- 积分：1
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MATLAB, "Matrix lab," It was based on the matrix of the basic computin...
MATLAB，即“矩阵实验室”，它是以矩阵为基本运算单元。因此，从最基本的运算单元出发，介绍MATLAB的命令及其用法2。-MATLAB, "Matrix lab," It was based on the matrix of the basic computing unit. Therefore, from the most basic computing element is introduced, and MATLAB ordered two of its use.
- 2022-08-15 14:22:56下载
- 积分：1
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18B20+LCD1602
msp430驱动lcd1602
18B20+LCD1602
msp430驱动lcd1602-18B20+ LCD1602
msp430 driver lcd1602
- 2023-06-18 04:45:03下载
- 积分：1
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觉得要是不好一定要告诉我啊~~谢谢~~~说明自己看,我也不知道怎么说...
觉得要是不好一定要告诉我啊~~谢谢~~~说明自己看,我也不知道怎么说-feel bad if I must tell ah ~ ~ ~ ~ ~ Thank you stated your view, I do not know how that
- 2023-06-21 00:05:03下载
- 积分：1
