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详细地介绍了世界上先进的表面处理工艺
很实用
详细地介绍了世界上先进的表面处理工艺
很实用-detailed introduction of the world"s advanced surface treatment technology is practical
- 2023-02-06 01:05:04下载
- 积分:1
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labview程序编程技巧演示,用labview编写windows应用图像编程小程序...
labview程序编程技巧演示,用labview编写windows应用图像编程小程序-LabVIEW programming skills demonstration, prepared by LabVIEW image windows programming applet
- 2022-05-09 07:13:23下载
- 积分:1
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扫雷小游戏dos界面 比较简单哦
用控制台做的
扫雷小游戏dos界面 比较简单哦
用控制台做的-Mine game dos interface
- 2023-02-25 18:50:03下载
- 积分:1
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冰点BaiDNS动态域名解析系统是基于VB程序开发,可以进行动态域名解析,具有二级域名申请、登录、修改注册密码和查看解析状态、查看登录日志等功能。...
冰点BaiDNS动态域名解析系统是基于VB程序开发,可以进行动态域名解析,具有二级域名申请、登录、修改注册密码和查看解析状态、查看登录日志等功能。
-Freezing point BaiDNS dynamic domain name system is based on the VB development, dynamic DNS can be a secondary domain name application, the registry, modify the registration status of the password and view the resolution to see features such as registry log.
- 2022-01-25 15:14:39下载
- 积分:1
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用java实现的俄罗斯方块。界面精美,值得学习研究。
用java实现的俄罗斯方块。界面精美,值得学习研究。-used to achieve the Rubik"s cube. Interface beautifully, it is worth studying.
- 2022-09-28 03:20:03下载
- 积分:1
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浏览文件夹对话框(C#)
浏览文件夹对话框(C#)-View Folder dialog box (C#)
- 2023-06-23 23:20:15下载
- 积分:1
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c语言中矩阵的转制,排练,等等功能的实现。
c语言中矩阵的转制,排练,等等功能的实现。-c language and other functions transferred to the matrix realization of
- 2022-03-23 11:18:21下载
- 积分:1
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MATLAB编写的一个计算器程序
MATLAB编写的一个计算器程序-MATLAB prepared a calculator program
- 2022-02-25 00:02:47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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最新FLASH9的AS3语法,对于学FLASH程序的朋友非常重要。配合FLASH9的编辑环境,即可写出你最优秀的FLASH程序。...
最新FLASH9的AS3语法,对于学FLASH程序的朋友非常重要。配合FLASH9的编辑环境,即可写出你最优秀的FLASH程序。-Card grammar, FLASH procedures for school friends is very important. FLASH9 with the editorial environment, you can write the best FLASH procedures.
- 2023-04-19 21:45:03下载
- 积分:1