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22
商标文字分割 matlab 实现 保证可用(Matlab implementation to ensure that trademarks can be split text)
- 2011-01-03 22:02:04下载
- 积分：1
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4PAM
基于matlab的4PAM调制解调程序，并对其误码率进行仿真分析。(4 PAM modulation demodulation program based on matlab, and simulation analysis was made on the bit error rate.)
- 2020-12-02 11:29:25下载
- 积分：1
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main_no_offset_2
假设截获了一段短波数字通信的信号，要求解调出最终的信息，每组解调出来后，将10组信息组合起来，恢复最终的信源输出数据。
先验信息：两组数据文件，编号为1、2，每组I、Q两路存放，格式为“int16”，采样率为9600Sa/s，其中第一组为单径情况，第二组为多径情况。
参数符合MIL-STD-188-110A标准；
同步序列为syn=seq.dat，BPSK调制；
接收机频率稳定度高于1e-6。
文件中有效信息总长度为333.75s，其中同步头长为5/12s，每时隙1/6s，训练序列占10 ，在数据之前；
交织方式为全交织，矩阵交织，列为1000，在比特级进行；
纠错码码率为1/2；
调制方式为BPSK、QPSK和8PSK中的一种，映射方式为二进制，BPSK相位偏移为0，其余两种为 。
(Suppose intercepted signal for a period of short-wave digital communications requires final demodulated information after each demodulated, combining 10 group information, to restore the final output data source.
Priori information: two sets of data file, numbered 1, 2, each I, Q two-way storage, the format is int16 , sampling rate 9600Sa/s, where the first group is a single path, the second group multipath situation.
Parameters meet MIL-STD-188-110A standard
Synchronization sequence syn = seq.dat, BPSK modulation
The frequency stability of the receiver is higher than 1e-6.
File payload total length of 333.75s, wherein the synchronization header length is 5/12s, each time slot 1/6s, accounting for 10 of the training sequence, before the data
Interleaving for the whole interleaving matrix interleaving, as 1000, carried out at the bit level
Error correction code rate of 1/2
The modulation scheme is BPSK, QPSK and 8PSK one, a binary mapping, the BPSK phase offset is 0, the )
- 2016-06-20 19:12:40下载
- 积分：1
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gaussian-pulse
高斯脉冲在光纤中的演变，用MATLAB程序实现(gaussian pulse evolution)
- 2013-12-20 16:26:54下载
- 积分：1
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Matlab2
介绍了数字通信中的QPSK调制解调的原理，通过用Matlab编写脚本程序对QPSK通信系统的发射和接收过程的具体实现进行模拟仿真，绘出信号在理想信道和加噪信道中模拟传输时的时域图，并对各模块进行了频谱分析，所得到的结果与理论基本相符，对于理解QPSK系统的性能并在系统的实际应用上作进一步的设计，提供了有效的参考依据(The introduction was done with the principle of the QPSK modulation and demodulation in digital communications, a script was written by using Matlab program to carry out a simulation of the QPSK communication system ,which contains the concrete realization of transmit and receive process. The time-domain diagram is drew separately when the signal transmits in the ideal channel and in the channel with noise, spectral analysis of each module is also done, the results obtained with theoretical results in the main, which provides an effective frame of reference for understanding the performance of QPSK systems, and the practical application in the system to make further designed.)
- 2010-06-16 08:22:47下载
- 积分：1
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least-squares
数值分析中基于Matlab环境下的关于最小二乘的源代码(Numerical analysis environment based on Matlab source code on least-squares)
- 2011-06-17 08:41:56下载
- 积分：1
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MSK
该程序主要是完成MSK调制解调的这样一个过程。(The program mainly completes the process of modulation and demodulation of MSK.)
- 2013-04-13 19:13:03下载
- 积分：1
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Fisher
Fisher LDA 实现了FisherLDA，大家可以看看，参考下。(Fisher LDA implementation, a simple demo o f patter recognition)
- 2010-12-26 20:35:55下载
- 积分：1
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CFDsimulation
利用CFD软件，采用雷诺应力模型分别计算了300型和250型水力旋流除砂器的内流
场，得到了2种水力旋流除砂器的轴向、径向、切向速度及压强的分布曲线。通过对所得结果的
分析，发现模拟结果基本符合旋流除砂器的运行规律。比较2种旋流除砂器的内流场，表明改进
的300型水力旋流除砂器的结构及分离能力优于原来250型水力旋流除砂器，为水力旋流除砂器
的优化设计和选型提供了可靠的设计依据。(use CFD software, Reynolds stress model used to calculate the respective 300-and 250-type sander hydrocyclones the flow field, been two kinds of hydrocyclones sander axial, radial and tangential velocity and pressure in the distribution curve. Based on the results of the analysis, the simulation results are consistent with the Cyclone sander operating rules. Comparing two kinds of Cyclone sander within the flow field, show improved 300 Desanding Hydrocyclones the structure and separation capacity than the original 250-hydrocyclone sander, Desanding Hydrocyclones for the optimum design and selection provided a reliable basis for the design.)
- 2007-06-17 09:53:32下载
- 积分：1
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Windmill
windmill simulink for matlab simulation for project
- 2014-11-17 23:35:53下载
- 积分：1
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