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PSO
粒子群算法源代码,属于进化算法的一种，和遗传算法相似，它也是从随机解出发，通过迭代寻找最优解。(Particle swarm algorithm source code, is a kind of evolutionary algorithm, and genetic algorithm are similar, it is also starting from the random solutions, through the iterative search for the optimal solution.)
- 2013-11-29 10:17:46下载
- 积分：1
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TSS
HELP FOR STUDENT AND POWER DOCTOR
- 2015-03-06 20:05:49下载
- 积分：1
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paper1
Adaptive Sparse Channel Estimation for Time-Variant MIMO-OFDM Systems
- 2015-03-20 23:45:56下载
- 积分：1
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the-code
低通巴特沃斯滤波器设计求阶数，适合广大学生们参考，(Low-pass Butterworth filter design requirements order, for the majority of students reference)
- 2013-09-03 13:00:02下载
- 积分：1
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motaifenxi
模态分析程序，一定要有实验现场的数据，要不运行不了(Modal analysis program, there must be experimental field data, or not running)
- 2013-09-27 14:32:28下载
- 积分：1
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QuadTriangleElement
有限元QuadTriangleElement的matlab程序(FEA matlab QuadTriangleElement)
- 2013-10-12 23:23:40下载
- 积分：1
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The-best-Chinese-MATLAB-Tutorial
MATLAB最好的中文教程，非常适合初学者(The best Chinese MATLAB Tutorial)
- 2013-11-07 19:51:36下载
- 积分：1
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计算雷达成像中的脉冲性能参数 pslr islr
计算雷达成像中的脉冲性能参数，即主瓣宽度、积分旁瓣比和峰值旁瓣比。(Calculation of the pulse radar imaging performance parameters, such as the Lord disc width, integral side-lobe peak than and side-lobe than.)
- 2021-05-07 22:07:36下载
- 积分：1
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0d2d8ed73de4
codes for particle swarm optimization
- 2012-04-03 03:04:22下载
- 积分：1
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OFDM
OFDM很容易在具有时延扩展或等效频率选择性的信道上使用。
频率选择性信道的特征在于延迟扩展或相干带宽，其测量频率中的信道去相关。
相干带宽与均方根（RMS）时延扩展成反比。
通过选择与信道相干带宽相关的子载波间隔，OFDM可以用于将频率选择性信道转换成频率平坦子信道的并行集合。
适合于平坦衰落信道的技术可以直接应用。(OFDM is simple to use on channels that exhibit time delay spread or, equivalently, frequency selectivity.
Frequency selective channels are characterized by either delay spread or coherence bandwidth which measures the channel decorrelation in frequency.
The coherence bandwidth is inversely proportional to the root-mean-square (rms) delay spread.
By choosing the sub-carrier spacing properly in relation to the channel coherence bandwidth, OFDM can be used to convert a frequency selective channel into a parallel collection of frequency flat subchannels.
Techniques that are appropriate for flat fading channels can then be applied in a straight forward fashion.)
- 2018-05-03 13:55:13下载
- 积分：1
