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range_computation
已附带43年阻力曲线，可进行地面炮炮弹射程计算(The 43-year resistance curve has been attached, which can be used to calculate the range of surface artillery projectiles.)
- 2019-03-08 19:11:55下载
- 积分：1
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滚动轴承分析 轴承技术的高等概念
说明： Concepts of bearing analysis by T.A.Harris Chinese Version pt.2
- 2019-06-17 17:28:32下载
- 积分：1
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Documents
说明： 可以利用hfss输出的s参数反算介电常数(use the s paramaters to get Dielectric constant)
- 2019-04-15 21:23:39下载
- 积分：1
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matlab的经典程序
说明： matlab的经典程序、绘图、解方程、数据分析、规划问题、差值与拟合、代数方程组解法、微分方程实验(Matlab's classic procedures, drawing, solving equations, data analysis, planning problems, difference and fitting, algebraic equations solution, differential equation experiment)
- 2018-06-07 17:41:36下载
- 积分：1
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large write a performance based management courses, write well, only to see it
大一时写的一个成绩管理课设，写的不好，就看看而已-large write a performance based management courses, write well, only to see it
- 2022-02-06 01:06:31下载
- 积分：1
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无线局域网仿真
WLAN仿真－发送机
wlan No Comments
设置完系统参数后，开始产生发送数据。
1. 产生随机的发送bit（tx_bits），这里不考虑信道编码。
2. QAM映射
3. 将数据映射到不同载波，形成OFDM符号
4. 产生pilot，并将pilot插入OFDM符号中
5. 加入dc和guard子载波
6. 进行ifft，将频域信号变到时域，并加入循环前缀
7. 对信号进行overlap window
8. 在时域产生short preamble
9. 在时域产生long preamble
10. 将preamble和数据符号组成packet
11. 升采样
得到信道传输的数据Tx_signal_up
具体程序见附件 wlan_transmitter.m-WLAN Simulation- wlan No Comments transmitter system parameters set finished, the beginning to have to send data. 1. Have sent random bit (tx_bits), here does not consider channel coding. 2. QAM mapping 3. The data is mapped to a different carrier to form OFDM symbols 4. Have a pilot, and pilot inserted OFDM symbols 5. Adding dc and guard subcarriers 6. To carry out ifft, will change the frequency domain signal to time domain, and add cyclic prefix 7. the signals overlap window8. In the time domain have a short preamble9. In the time domain have a long preamble10. the preamble and data symbols packet11. or sampling re
- 2022-03-17 11:21:25下载
- 积分：1
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Rotary-Machinery-Fault-Diagnosis--
国外的一篇关于旋转机械故障诊断的博士论文，很难找的一篇好论文！(Abroad a doctoral thesis about rotating machinery fault diagnosis, and be helpful for some friends!)
- 2012-10-13 01:01:55下载
- 积分：1
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基于卡尔曼滤波的电池荷电状态估计
说明： 电池荷电状态检测算法的matlab仿真。(Matlab simulation of battery charging state detection algorithm.)
- 2019-06-18 23:45:57下载
- 积分：1
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distance-between-objects
利用python+opencv测量图片中目标物体之间的距离(Measuring distance between objects in an image with OpenCV)
- 2021-03-30 17:09:10下载
- 积分：1
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极化SAR分解
用于极化sar的特征分解，其中包括常见cloude、freeman等分解(For polarization SAR feature decomposition, including cloude, Freeman and other decomposition)
- 2020-12-20 19:19:08下载
- 积分：1
