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ModScan32-1
用于监控PLC，针对的是modbus协议(monitoring PLC with modbus protocol)
- 2013-10-21 12:50:17下载
- 积分：1
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20070313_synchronizationMutex
同步机制的解决方法之一(one of the solutions)
- 2007-04-06 11:59:02下载
- 积分：1
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MATLAB
接收端采用的算法和程序流程与发送端发送的OFDM符号的帧结构有关系。具体的帧结构，以及定时估计，频偏估计，剩余误差跟踪的算法可参考算法说明文档。这里对程序的流程进行说明。
首先根据短训练字的特性进行相关运算，进行信号到达检测，当检测到相关值大于门限一定次数后，认为有信号到达。然后根据长训练字的特性，进行相关运算，进行OFDM符号FFT窗口起始位置的估计。估计出FFT窗口的位置后，先在时域进行小频偏的估计，将两个长训练字进行小频偏补偿后，进行FFT运算，根据FFT运算的结果进行整数倍频偏的估计。这些参数估计完成后，就可以进行数据解调了。先对数据部分进行完整的频偏补偿，然后根据估计的FFT窗口位置进行FFT运算得到频域的数据，进行解调。然后在对应于导频的子载波位置上提取出导频信息，根据导频信息估计出剩余定时误差以及剩余的信道响应误差，将误差量送入环路进行跟踪。当收到所有数据后，重新回到信号到达检测状态，进行下一次信号到达的检测和信号接收。
(good)
- 2020-11-04 23:49:52下载
- 积分：1
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Utest
说明： U盘读写模块，实现电脑与U盘自动连接，发送，传输数据(U-reader module, computerization and U disk automatically, sending, transmission of data)
- 2006-04-24 22:34:43下载
- 积分：1
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MNC
实现LDPC编码和译码，利用C语言编写，在matlab环境中画性能曲线。(Realize encoding and decoding of LDPC codes)
- 2009-12-03 17:24:33下载
- 积分：1
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uoid965
一个很小和天线计算程序,我觉得非常实用,发上来与大家分享()
- 2018-06-12 18:51:06下载
- 积分：1
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tongxun
用winsock实现两机通讯的一个小软件 特别简单
不再具体介绍(Winsock implementation to use two planes, a small communications software in particular is no longer easy introduction of specific)
- 2009-03-06 09:33:16下载
- 积分：1
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S5335DK_Software_v1_2
The PCI Local bus concept was developed to break
the PC data I/O bottleneck and clearly opens the door
to increasing system speed and expansion capabilities.
The PCI Local bus moves high speed peripherals
from the I/O bus and places them closer to the system’s
processor bus, providing faster data transfers
between the processor and peripherals. The PCI Local
bus also addresses the industry’s need for a bus standard
which is not directly dependent on the speed,
size and type of system processor. It represents the
first microprocessor independent bus offering performance
more than adequate for the most demanding
applications such as full-motion video.(The PCI Local bus concept was developed to breakthe PC data I/O bottleneck and clearly opens the doorto increasing system speed and expansion capabilities.The PCI Local bus moves high speed peripheralsfrom the I/O bus and places them closer to the system sprocessor bus, providing faster data transfersbetween the processor and peripherals. The PCI Localbus also addresses the industry s need for a bus standardwhich is not directly dependent on the speed, size and type of system processor. It represents thefirst microprocessor independent bus offering performancemore than adequate for the most demandingapplications such as full-motion video.)
- 2008-01-08 10:58:20下载
- 积分：1
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TTurbo_QAM_2au
Turbo编码16QAM在AWGN信道中的性能Turboo码份量码为[1,17/15],码率为1/2,采用随机交织器
(Turbo coded 16QAM in AWGN channel performance Turboo code amount of code [1, 17/15], the rate 1/2, using a random interleaver)
- 2021-05-07 14:58:36下载
- 积分：1
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AD1
利用数据板卡进行数据采集，利用半满的方式将模拟量转换成数字量(Data card for data acquisition, the use of half-full way to convert analog into digital)
- 2012-06-19 12:52:38下载
- 积分：1
