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gaochao
空气动力学高超声速 简单飞行器 气动力计算
(Aerodynamics of hypersonic aircraft aerodynamic calculations)
- 2012-04-12 16:42:47下载
- 积分：1
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fuliye
实现基于逆傅里叶变换法下，不同级别道路的路面不平度仿真。(Implementation based on inverse Fourier transform, the different levels of road simulation of road roughness.)
- 2010-05-31 17:22:00下载
- 积分：1
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5
说明： 5. 在三条径的瑞利信道中，对于直接序列扩频：
(1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法，接收机分别采用等均益合并、最大比合并。用Simulink进行仿真，测量BPSK的误码率性能，画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线，请解释在误码率为0.01时，两种合并方式所表现的不同的物理意义。
(2) 设频率已经同步，请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法，用Simulink进行仿真(自己编写代码S-Function方式)，分析所设计方案的时间同步精度，画出比特信噪比与捕获概率的关系曲线。
(3) 设时间已经同步，请设计DS-CDMA一种具体的频率同步方法，用Simulink进行仿真(自己编写代码S-Function方式)，画出比特信噪比与频率同步误差的关系曲线。
(5 In the three path Rayleigh channel, for direct sequence spread spectrum:
(1) Please design a specific DS-CDMA code division guide-assisted channel estimation, receiver, etc were used to benefit the merger, the maximum ratio combining. With the Simulink simulation, BPSK BER performance measure, draw-bit signal to noise ratio and channel estimation mean square error of the curve, draw the signal to noise ratio and bit error rate curve, please explain in bit error rate 0.01, the two methods are combined performance of the different physical meaning.
(2) frequency has been set up synchronization, a specific design of DS-CDMA single-stop sliding correlation method of time synchronization, simulation with Simulink (S-Function code their own way), analyze the design of time synchronization accuracy, draw bit signal to noise ratio and capture probability curve.
(3) set time has been synchronized, a specific design of DS-CDMA frequency synchronization method, simulation using Simulink ()
- 2011-07-20 11:02:06下载
- 积分：1
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method-of-detection
本文章提出了一种改进的雷达探测概率计算方法(This article presents an improved method of calculating the probability of radar detection)
- 2011-09-04 08:25:16下载
- 积分：1
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LDPC
这里包含使用C、matlab等多种语音以多种方式实现LDPC的多种算法。(This includes using C, matlab, and other voice in a variety of ways to achieve a variety of LDPC algorithm.)
- 2013-10-10 10:50:55下载
- 积分：1
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load-forecasting
用于预测的东西，很一般的东西，有兴趣的试试看，没兴趣的，呵呵~~那就不好意思了(Used to predict something very general things, interested give it a try, not interested, huh, huh ~ ~ it embarrassed)
- 2013-04-27 16:35:58下载
- 积分：1
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train_svm
自己利用matlab自带的优化函数实现的svm(svm by myself)
- 2015-04-09 11:14:39下载
- 积分：1
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matlab
带交叉因子的粒子群优化算法matlab源程序(Cross-factor with particle swarm optimization algorithm matlab source)
- 2008-06-04 14:27:48下载
- 积分：1
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feijeng
用平面波展开法计算二维声子晶体带隙,能量谱分析计算,合成孔径雷达（SAR)目标成像仿真。( Computation Method D phononic bandgap plane wave, Energy spectrum analysis and calculation, Synthetic Aperture Radar (SAR) imaging simulation target.)
- 2017-04-12 15:25:22下载
- 积分：1
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matlabsuanfa
说明： 包含了Floyd算法、dijkstra算法、贪婪算法、遗传算法、搜索算法、蚁群算法、哈密顿环路的matlab源程序及相关说明。(Floyd algorithm is included, dijkstra algorithm, greedy algorithm, genetic algorithm, search algorithm, ant colony algorithm, Hamiltonian loop matlab source code and instructions.)
- 2021-02-27 21:09:36下载
- 积分：1
