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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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802.11a
802.11a标准 比较全面 各个方面的都有的-802.11a
- 2022-02-15 08:19:19下载
- 积分:1
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扫雷模拟游戏,仿照扫雷游戏编写,是一款简单的游戏。
扫雷模拟游戏,仿照扫雷游戏编写,是一款简单的游戏。-mine simulation games, modeled on the mine-game preparation, is a simple game.
- 2022-03-14 14:06:13下载
- 积分:1
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汽车信号灯控制系统
汽车上有一转弯控制杆。此控制杆有三个位置:
1、 中间位置时,汽车不转弯;
2、 向上时,汽车左转;
3、 向下时,汽车右转...
汽车信号灯控制系统
汽车上有一转弯控制杆。此控制杆有三个位置:
1、 中间位置时,汽车不转弯;
2、 向上时,汽车左转;
3、 向下时,汽车右转;
4、 汽车转弯时,要求左右尾灯、左右头灯和仪表板上的2个指标灯相应地发出闪烁信号;
5、 当应急开关合上时,所有6个信号灯都应闪烁;
6、 汽车刹车时,2个尾灯发出不闪烁的信号;
7、 如刹车时正在转弯,则相应的转弯闪烁信号不受影响。
8、 汽车转弯或应急状态下,外部信号灯和仪表板指示灯的闪烁频率为1HZ。
9、 停靠(合上停靠开关):头灯、尾灯以30Hz的频率闪烁。
-car lights on the car control system is a turn-control. This control rod position are three : a middle position, the car turns; 2, upward, the vehicle turn left; 3. downward car when turning; four car turning, asked about taillights, about headlights and instrument panel in the two corresponding indicator lights flashing to send signals; 5, when a switch on the emergency, all six lights should be flashing; 6, car brakes, two rear of no flashing signal; 7. if the brakes are turning, turning corresponding flashing signal is not affected. 8, cars turning or state of emergency, external appearance and the dashboard lights flicker frequency 1HZ. 9, call (a call on the switch) : headlights, taillights to the frequ
- 2023-03-15 12:30:03下载
- 积分:1
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各种背包数据集,可以用来测试智能算法的优化性能。
各种背包数据集,可以用来测试智能算法的优化性能。-all kinds of knapsack data set and can be used to test the optimization performance of intelligent algorithms
- 2022-04-29 08:57:12下载
- 积分:1
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十六进制转换为十进制,是想应用程序可视化界面实现不同进制之间的转换。...
十六进制转换为十进制,是想应用程序可视化界面实现不同进制之间的转换。-sixteen to ten
- 2022-04-15 00:09:48下载
- 积分:1
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该文件是教你如何从根目录中找到你要删除的文件夹.
该文件是教你如何从根目录中找到你要删除的文件夹.-the document is to teach you how to find the root directory you want to delete the folder.
- 2022-02-20 22:01:46下载
- 积分:1
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以“带行逻辑链接信息”的三元组表作为稀疏矩阵的存储结构;实现两个矩阵相加、相减、相乘运算;运算结果以阵列形式输出。...
以“带行逻辑链接信息”的三元组表作为稀疏矩阵的存储结构;实现两个矩阵相加、相减、相乘运算;运算结果以阵列形式输出。-Sparse matrix computation
- 2022-07-28 15:07:49下载
- 积分:1
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model system of two ma
model system of two ma-model system of two mass
- 2023-08-06 21:45:03下载
- 积分:1
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HX108
HX108-2七段数码管超外差式收音机原理分析与组装过程-HX108-2 seven-segment digital tube superheterodyne radio principles of analysis and assembly process
- 2023-07-15 00:15:03下载
- 积分:1