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ultrasonic
ultrasonic curcit
amjadmftah@hotmail.com
- 2010-11-12 10:21:08下载
- 积分：1
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ldpc_lower_tri
conversion of a matrix into lower triangular matrix
- 2020-06-17 04:00:01下载
- 积分：1
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Amplifier
光纤放大器模拟程序，包括泵浦功率、光纤增益、光纤长度等参数(fiber amplifier)
- 2012-01-06 15:30:14下载
- 积分：1
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internetconmunacation
如何创建网络通信服务器程序.可以了解通信的http协议,了解网络通信知识(How do I create a network communication server program. Can understand the http protocol communication, understanding of network communication of knowledge)
- 2008-03-05 11:29:49下载
- 积分：1
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数字通信系统仿真
说明： 数字通信系统的仿真，全matlab代码，实测可用(Digital communication system simulation, full matlab code, measurement available)
- 2021-04-20 16:12:31下载
- 积分：1
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基于DFT码本的波束方向图生成代码 Beamforming_DFT
基于DFT码本的波束方向图生成代码，通俗易懂(DFT based beam pattern generation code, easy to understand)
- 2020-07-03 00:40:02下载
- 积分：1
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gmonopulse
高斯一阶导数生成的UWB单脉冲信号，脉冲宽度为0.5ns(Gaussian first derivative monopulse generated UWB signal, pulse width of 0.5ns)
- 2008-12-14 22:22:22下载
- 积分：1
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MIMO(OFDM)simulator
This project demonstrates OFDM with adaptive modulation applied to Multiple-Input Multiple-
Output (MIMO) systems.
The analysis and simulation
is considered in two stages. The rst stage involves the application of a variable-rate
variable-power MQAM technique for a Single-Input Single-Output (SISO) OFDM system.
The second stage applies adaptive modulation to a general MIMO system
by making use of the Singular Value Decomposition to separate the MIMO channel into parallel
subchannels.
- 2008-05-23 17:01:47下载
- 积分：1
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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
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跳频仿真
MATLAB跳频仿真源代码，展示了整个跳频通信过程，包括信号源产生、2FSK调制、跳频扩频、跳频解调、2FSK解调、抽样判决、恢复原始信号过程，适合初学者(MATLAB frequency hopping simulation source code, showing the entire frequency hopping communication process, including signal source generation, 2FSK modulation, frequency hopping spread spectrum, frequency hopping demodulation, 2FSK demodulation, sampling decision, restoration of original signal process, suitable for beginners)
- 2021-02-14 16:59:48下载
- 积分：1
