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duoguangshu
迈克尔逊演示程序，很好用的一个程序。迈克尔逊演示程序，很好用的一个程序。(Michelson demo program, with a very good program. Michelson demo program, with a very good program.)
- 2013-11-26 23:20:26下载
- 积分：1
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signal_analyzer
说明： 最近看到有人提问怎样用FFT实现频谱分析，我认为能够进行到频谱分析的人，对于系统研究的深度基本上已经相当不错了。本人今天做了一个例程，发给大家参考一下。
历程主要内容(signal_analyzer.rar)如下：
test1.txt 第一列为时间t，0.001s为步长；第二列为系统的输入信号；第三列为系统的输出信号。
signal_analyzer.m首先将test1.txt 的数据读入workspace，然后进行FFT，分析出两信号的频率，输出对于输入的幅值衰减（db），输出对输入的相位差。(The question was asked recently to see the realization of how to use FFT spectral analysis, I think that spectral analysis can be carried out to those who study the depth of the system basically is already quite good. Today I made a routine, distributed to Members for reference. The main contents of the course (signal_analyzer.rar) are as follows: test1.txt the first time as t, 0.001s for the step the second as the system input signal the third as a system output signal. signal_analyzer.m first test1.txt data read into workspace, and then proceed to FFT, analysis of the two signal frequency, output amplitude for input attenuation (db), the output of the input phase difference.)
- 2008-10-25 10:29:35下载
- 积分：1
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clase_23_10_2009
control de una planta por ubicacion arbitraria de polos
- 2009-10-28 22:45:13下载
- 积分：1
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trans_sigPnoisePinterference
根据直扩原理，首先有随机数发生器产生一系列二进制信息数据（+1，-1），每个信息比特重复Lc次，Lc对应每个信息比特所包含的伪码片数，包含每一比特Lc次重复的序列与另一个随机数发生器产生的PN序列c(n)相乘。然后在该序列上叠加高斯白噪声和形式为i(n)=Acosw0n余弦干扰下次信号，切余弦干扰信号的振幅满足条件A<Lc。在解调器中进行与PN序列的互相关运算，并且将组成各信息比特的Lc个样本进行求和。加法器的输出送到判决器，将信号与门限值0进行比较，确定传送的数据为+1还是-1，计数器用来记录判决器的错判数目。(According to the principle, first some straight expansion random number generator produces a series of binary data (+ 1-1), each information bit repetitive Lc times, Lc for each information bit contains PN code piece count, embraces each bit Lc times repeated sequence and another random number generator produces PN sequence c (n) multiplication. Then in the sequence superimposed on gaussian white noise and forms as I (n) = Acosw0n cosine interference next time signal, cut cosine interfering signal amplitude satisfy conditions A < Lc. In the modem with the cross-correlation operation PN sequence, and the information will comprise the Lc a sample bits peace. The output of the adder judgment device, will signal to compare with threshold 0 data transmitted, determine for+ 1 or-1, counter is used to record the number victimised judgment.
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- 2011-04-20 10:18:47下载
- 积分：1
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awgn_simulator
LDPC码在AWGN信道下的译码程序（c语言）(LDPC code in AWGN channel decoding procedures under (c language))
- 2009-03-24 22:20:50下载
- 积分：1
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rssSeaEchoBrown
生成微波遥感方面的海面回波波形,用于海浪波谱仿真,计算.(to generate the microwave remote sensing ,brown ocean wave return model)
- 2012-05-30 18:50:59下载
- 积分：1
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cyclostationary_toolbox
说明： 循环平稳信号分析工具箱第二版
相对于第一版增加了更多实例(Cyclostationary signal analysis toolbox in relation to the second edition of the first edition of an increase of more examples of)
- 2008-12-01 10:08:08下载
- 积分：1
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Optimal-design-of-PID-parameter
说明： 研究基于粒子群算法控制系统PID参数优化设计方法以及对PID控制的改进。( study the optimal design of PID parameter of the control system based on Particle Swarm Optimization and find a way to improve the PID control. )
- 2011-04-18 19:37:41下载
- 积分：1
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mimo
附件包括了运用mimo技术实现的ofdm系统，其中包括信道的创建，调制解调技术，还有相关指导文档(Accessories include using mimo ofdm systems technology implementation, including the creation of the channel, modulation and demodulation techniques, as well as the relevant guidance documents)
- 2010-05-12 15:57:04下载
- 积分：1
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image_measure
tool for measuring images
- 2013-04-23 00:30:03下载
- 积分：1
