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QAM
tA scheme of format conversion optical 16-ary quadrature amplitude modulation (16QAM) toquadrature phase shift keying (QPSK) signal based on cascaded four-wave mixing (FWM) in semiconduc-tor optical amplifiers (SOAs) is proposed. Theoretical analysis and simulations of the format conversionscheme are conducted to validate the feasibility of the proposal. In this proposal, the phase conjugatedof 16QAM signal is generated after the first FWM process in an SOA, and then the QPSK signal is con-verted due to the second non-degenerate FWM (ND-FWM) process in another SOA. The performance andthe optimal design of the 10 Gbit/s format conversion system under various key parameters of SOAs are uated and discussed. Simulation results present useful to enable interconnection between backbonenetwork and access network.
- 2015-03-23 12:56:13下载
- 积分：1
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digitizg
对产生的GPS的C码进行数字化，直接进行解压就可以了
(the right GPS C code for digital, direct extraction can be a)
- 2006-05-22 09:43:55下载
- 积分：1
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data-classification-by-SVM-
使用支持向量机进行数据的分类预测，所需样本数据较少，且预测精度高，分类效果较好。(Using support vector machines for data classification prediction, requires less sample data, and predict high precision, classification better.)
- 2014-11-03 09:35:07下载
- 积分：1
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FIR
FIR低通滤波器的编程实现，针对的是一维信号处理(The FIR low pass filter for programming is one dimensional signal processing)
- 2014-12-23 09:21:08下载
- 积分：1
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Emd
基于MATLAB平台编写的经验模态分解的源代码(Empirical Mode Decomposition
)
- 2010-10-05 10:18:05下载
- 积分：1
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DCSK
MATLAB对与dcsk的运用，dcsk系统信号调制和解调的仿真，性能分析。(MATLAB analysis of the use and dcsk, dcsk signal modulation and demodulation system simulation performance.)
- 2014-05-03 16:09:06下载
- 积分：1
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imagecipher4
Bifurcations of Nonlinear Systems
- 2009-06-06 07:31:33下载
- 积分：1
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RS-coding
关于信源编码和信道编码的源程序，信道编码包括NRZ码及其频谱分析，信道编码是关于RS码的分析(About the source code of the source coding and channel coding, channel coding NRZ code and its spectrum analysis, channel coding on the analysis of RS code)
- 2012-06-02 17:15:58下载
- 积分：1
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MadHG
利用函数MadHG生成规则LDPC码的校验矩阵H，其行重为6,列重为3,行数为列数一半(行数越大越好)，H中任意两列没有围长为4的圈，并得到H对应的生成矩阵G，可以保证mod(G*H ,2)=0。使用方法为:[H,G] = MadHG(m,n,x),x= 1(得到的G左半部分为单位阵) or 2(G右半部分为单位阵),(use function MadHG Generation rules LDPC check matrix H, re-6, series of three, out for a few half of the number (A bigger the better), H 2 arbitrary no girth of the four circles, H counterparts and with the formation of matrix G, we can be assured of mod (G* H, 2) = 0. To be used : [H, G] = MadHG (m, n, x), x = 1 (the G part of the Left Front units) or 2 (G right half of the units RUF),)
- 2007-05-12 10:54:46下载
- 积分：1
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ACO-PID
除了蚁群算法，可用于PID参数优化的智能算法还有很多，比如遗传算法、模拟退火算法、粒子群算法、人工鱼群算法，等等。(In addition to the ant colony algorithm, can be used in the intelligent algorithm of PID parameter optimization and there are many, such as genetic algorithm, simulated annealing algorithm, particle swarm optimization (pso), artificial fish algorithm, and so on.)
- 2014-10-05 17:49:02下载
- 积分：1
