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机载雷达导论
说明： 关于雷达的详细介绍的英文书籍，对于入门自动驾驶雷达方面的研究有帮助(The detailed introduction of radar in English books is helpful for the study of introductory autopilot radar.)
- 2018-12-25 16:41:46下载
- 积分：1
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PCS_B
微电网保护问题与传统配电网保护有着极大的不同，典型表现在以下几个方面：a.微电网在并网运行和孤岛运行两种运行方式下，短路电流大小不同且差异很大。b.微电网中电源及相关负荷的接地方式对故障电流的大小影响也很大。c.加入分布式能源后，微电网的双向潮流特性对微电网保护的方向判别也有新的要求。d.发生故障时，微电网与配电网的不同隔离策略需要与微电网保护相结合，这也是微电网保护的关键。(The problem of microgrid protection is very different from that of traditional distribution network protection. Typical manifestations are as follows: a. The short-circuit current of microgrid varies greatly under the two operation modes of grid-connected operation and island operation. B. The grounding mode of power supply and related loads in microgrid also has a great influence on the magnitude of fault current. C. With the addition of distributed energy, the bidirectional power flow characteristics of microgrid also have new requirements for the direction discrimination of microgrid protection. D. When a fault occurs, different isolation strategies of microgrid and distribution network need to be combined with microgrid protection, which is also the key of microgrid protection.)
- 2019-01-25 18:36:22下载
- 积分：1
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example2_3
说明： 卡尔曼滤波在温度测量中的应用，程序很好用，直接运行即可(Kalman filter in the application of temperature measurement, the program is very easy to use, can be directly run.)
- 2020-06-18 22:40:02下载
- 积分：1
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dds_test
说明： 直接数字式频率合成器DDS设计、Verilog。
产生的信号可以是正弦波或方波、三角波、锯齿波等，自选。
采用DDS技术，将所需生成的波形写入ROM中，按照相位累加原理合成任意波形。
此方案得到的波形稳定，精度高，产生波形频率范围大，容易产生高频。
本实验在设计的模块中，包含以下功能：
（1）通过 freq 信号输入需要的频率的值；
（2）通过 wave_sel 信号选择所需的波形；
（3）通过 amp_adj 信号选择波形放大的倍数。(DDS design of direct digital frequency synthesizer, Verilog.
The generated signal can be sinusoidal or square wave, triangular wave, sawtooth wave and so on, optional.
By using DDS technology, the required waveforms are written into ROM, and arbitrary waveforms are synthesized according to the principle of phase accumulation.
The waveform obtained by this scheme is stable, accurate and easy to generate high frequency waveform.
This experiment includes the following functions in the designed module:
(1) Input the required frequency value through freq signal;
(2) Choosing the required waveform by wave_sel signal;
(3) Select the multiplier of waveform amplification by amp_adj signal.)
- 2019-01-19 16:07:50下载
- 积分：1
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Android 滑出侧边栏特效 拉出抽屉效果
Android 滑出侧边栏特效 拉出抽屉效果，就像抽屉抽出来合上去，打开手机界面后，侧边栏隐藏屏幕左侧，手放上去会有响应，然后向屏幕右侧滑，就打开侧边栏了，这里面可以是菜单或其它的相关内容，本例将向大家演示如何在Android的界面设计中实现这种效果。
- 2022-03-26 16:46:12下载
- 积分：1
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19854828MRAS
mras direct torque control
- 2010-01-07 16:33:38下载
- 积分：1
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ahb2apb
ARM m4 FPGA开发模块，用于 ahb2apb的模块接口(ARM M4 FPGA development module for ahb2apb module interface)
- 2017-07-26 22:57:23下载
- 积分：1
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粒子群路径规划
说明： 基于粒子群算法解决tsp旅行商问题，粒子群算法（以下简称PSO）就是模拟鸟群觅食行为的一种彷生算法 。 解=粒子=鸟 (鸟的位置象征着离食物的距离，粒子的位置也象征着离最优解的距离，是评价解质量的唯一标准)， 找食物=找最优解，一个西瓜=一个粒子找到的历史最优解，一块肉=整个粒子群找到历史最优解 。(Solving TSP traveling salesman problem based on particle swarm optimization)
- 2019-01-27 14:11:08下载
- 积分：1
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周期性边界条件代码
说明： 建立二维、三维单胞模型的周期性边界条件python脚本程序(Periodic boundary conditions for building three-dimensional and two-dimensional cell model)
- 2020-11-10 12:09:46下载
- 积分：1
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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
