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directional wireless channel

一个关于OFDM子载波的分配算法源程序，希望对大家能有所帮助。(Subcarriers on the MATLAB source code distribution algorithm, in the hope that we can help.)

《MATLAB遗传算法工具箱及应用》书籍源程序(MATLAB genetic algorithm toolbox and application source code)

huffman coding for jepeg compression

sd fde fccxx, fddiw dsssuwjs jsiwqwiwxjxj

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.)

There are 5sample files of qpsk, ofdm, scfde, alamouti and space time codings. those of 5samples can be useful for using matlab user.

matlab编程指南电子版，很值钱的呦，关于matlab写程序的方法(matlab electronic programming guide, it is valuable Yo)

关于数据压缩的DCT压缩和hoffman压缩算法，有详细的例子，运行有效，推荐下载(DCT hoffman data compressing)

一个数学模型的优化 function testcon() ％％ 设置初始值，上下限； x0=[18 13 11] lb=[3 0.1 7] ub=[25 1 25] ％％ 调用优化求解函数(testcon) (Optimization of a mathematical model function testcon () set the initial value, the upper and lower limits x0 = [18 13 11] lb = [3 0.1 7] ub = [25 1 25] Call for Function Optimization (testcon))