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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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一个很好用的MPEG2
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is to help novice Kalman filtering friends induction procedures, helpful!
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该例子中工具栏上显示字幕
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51-60example-c代码,是txt文本格式的,另有40例代码会陆续传上来。-51-60example-c code, txt text format. Another 40 cases will successively sent code onto.
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邮票问题:设一国家发行n种不同面值的邮票,并且每封信至多允许贴m张邮票,对于给定的m,n值,写一个算法求出从邮资1开始在增量为一的情况下可能获得的邮资值的最大连...
邮票问题:设一国家发行n种不同面值的邮票,并且每封信至多允许贴m张邮票,对于给定的m,n值,写一个算法求出从邮资1开始在增量为一的情况下可能获得的邮资值的最大连续区域以及获得这个区域的各种可能面值的集合。如,当 n=4,m=5,若有面值为(1,4,12,21)的四种邮票,则邮资最大的连续区域为1到71。还有其他面值的四种邮票可组成同样大小的区域吗-stamp issue : Let a national issue n different denominations of the stamps and letters each allow up to m stamp affixed, to the m, n, write an algorithm derived from a postage in an increment of the circumstances, may obtain a postage value of the maximum continuous access to this region and regional various denominations could assemble. For example, when n = 4, m = 5, if the values of (1,4,12,21) of the four stamps, postage largest regional consecutive 1-71. There are four other denominations of the stamps can be the same size as the composition of the region? ?
- 2022-02-24 19:12:53下载
- 积分:1
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datagrid打印
可以实现在当前控件的打印功能
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可以实现在当前控件的打印功能-datagrid printing can be achieved in the current control of the printing function
- 2023-01-14 08:10:03下载
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学生毕业设计管理系统
这是一个C++实现的学生毕业设计管理系统,里面都是经过CodeBlock调试过的,绝对正确!
- 2022-01-22 14:50:09下载
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vb源代码,这是一个非常不错的程序,有很多的查询代码。一用更知...
vb源代码,这是一个非常不错的程序,有很多的查询代码。一用更知-vb source code, which is a very good procedure, a lot of inquiries code. With a better understanding
- 2022-05-19 20:35:27下载
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salary management system source code. A good development ... for a very long tim...
工资管理系统源代码.很好...开发了很长时间,做得很好,不信你看看,看看就知道了。。。。。。。。。真的吗??是真的-salary management system source code. A good development ... for a very long time, does a good job, do not think you see the will know. . . . . . . . . Really? ? Really.
- 2022-03-15 05:22:08下载
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