-
on-the-modulation-technology-in-OFDM
在 OFDM 数学原理和收发模型的基础上，本文对帧同步、定时同步、频率同
步和采样同步给 OFDM 系统所产生的影响进行了理论分析，同时讨论了基于循环
前缀或训练符号的典型 OFDM 同步算法。参考 802.11a 突发数据帧结构和系统参
数，分析几种 OFDM 同步算法用于突发分组传输的性能；在分析了几种经典的信
道估计算法基础上,通过对复杂度和性能的折衷，选择一种适合本文系统的估计
算法。最后作者提出一种改进型 LS 信道估计算法，该算法考虑了 LS 算法中噪声
的影响，从而提高了低信噪比下信道估计的精度。仿真结果表明，改进算法在低
信噪比下具有良好的性能。
(OFDM mathematical principles and transceiver model based on frame synchronization, timing synchronization, frequency synchronization and sampling synchronization to the OFDM system, the impact of the theoretical analysis are also discussed based on the cyclic prefix or training symbols typical OFDM synchronization algorithm . Reference 802.11a burst data frame structure and system parameters, analyze several OFDM synchronization algorithm for burst packet transmission performance several classic channel estimation algorithm based on a compromise between complexity and performance, select a suitable estimation algorithm in this article. Finally, the author proposed a modified LS channel estimation algorithm that takes into account the effects of noise in the LS algorithm, thus improving the low SNR channel estimation accuracy. Simulation results show that the improved algorithm has good performance in low signal-to-noise ratio.)
- 2013-05-10 15:18:30下载
- 积分：1
-
DNP3.0-Master
DNP3.0规约调试软件,包含源代码。可用于FTU调试，学习DNP规约。(Statute DNP3.0 debugging software, including source code. FTU debugger can be used to study the Statute DNP.)
- 2009-06-04 09:36:27下载
- 积分：1
-
Socket
socket 编程(socket programming)
- 2008-01-15 17:30:30下载
- 积分：1
-
PrachPara2013.10.21.0928
LTE prach的信令分析代码,由协议解析出数据处理需要的信息(The signaling LTE PRACH analysis code, the protocol analysis data processing need information
)
- 2013-11-05 17:40:16下载
- 积分：1
-
HelloSMS
wince傳送簡訊的範例,利用vs 2005編譯開發(wince newsletter send an example, using vs 2005 to compile the development of)
- 2008-08-05 16:43:11下载
- 积分：1
-
vrnash
印度尼西亚大学电子学院的的OFDM程序,非常好,(The OFDM program of the School of Electronics at the University of Indonesia is very good,)
- 2019-03-27 17:51:16下载
- 积分：1
-
li2
它是以概率统计理论为基础，依据大数定律（样本均值代替总体均值），利用电子计算机数字模拟技术，通过不断产生随机序列来模拟事件的过程，来解决一些很难直接用数学运算求解或其他方法不能解决的复杂问题的一种近似算法，它既可模拟随机事件，也可模拟确定性事件。(It is based on the theory of probability and statistics, based on the law of large numbers (the mean of sample instead of the average), and using the digital simulation technology of electronic computer to simulate the process of events by constantly generating random sequences to solve some complicated problems which are difficult to be solved directly by mathematical calculation or by other methods. Like algorithm, it can simulate both random events and deterministic events.)
- 2018-07-05 10:10:18下载
- 积分：1
-
pts_suboptimal
说明： 降低papr的pts算法的一种次优化算法。(reduce the papr pts a meeting algorithm optimization algorithm.)
- 2006-03-27 15:49:13下载
- 积分：1
-
103--protocol
103规约，比较全 规约草案 103规约完IEC60870-5-103规约基本要点全版 ProtocolTester.exe 许继103通信规约TCP(many about IEC 103 protocol )
- 2012-03-15 20:17:20下载
- 积分：1
-
bpsk
用C++实现BPSK的仿真，包括信源，调制，信道，解调，计算误比特率(Using C++ implementation BPSK simulation, including source, modulation, channel, demodulator, bit error rate calculation)
- 2020-12-11 14:59:17下载
- 积分：1
