shengyinfansheshixian

LOGISTIC混沌映射不同长度的自相关和互相关函数比较。(Compariton of difference length of chaos)

Turbo decoder under awgn channel. (The input is: uncoded bits,coded bits 1,coded bits2(interleaved), LLR from other source(if use only one turbo code ,fill all zero is ok), numbers of iterations, interleaver between two CC, source bit,decoder id(if used in parreled connected turbo codes), interleaver between two sources(under the situation of two turbo codes).)

An analog amperemeter (0-10 A), is connected in an electrical circuit build with Simulink

混沌发展，历史和编码，混沌的研究方法及编码。(Chaotic development, history and coding, chaos research methods and coding.)

文中给出了通信系统中的升余弦滚降传输特性的matlab程序实现源代码。(text is a system of communication or transmission cosine roll-off characteristics of the Matlab program source code.)

说明：  matlab实现数字调频与解调，并进行结果显示。(matlab digital FM demodulation, and display the results.)

产生不同增益因子下的锐利信道十条误码率曲线，信噪比范围0~30DB(Under different gain factor of sharp curve, the article channel ber SNR range 0 ~ 30DB)

关于matlab 的书，好赖看看就知道了(Introduction to Scientific Computing A Matrix- Vector Approach Using matlab)

说明：  一个用于求圆周率pi的matlab算法。题目背景：取一长面积为1平方米的正方形白纸，在白纸的内部画一个直径为1米的圆，如下图所示。此圆恰好与正方形的四条边分别切于一点，它的面积是 pi*（1/2）^2 =pi/4 ,然后，你可以抓一大把芝麻，一粒一粒地随便地扔到白纸上。在你扔麦子的过程中可以请一位朋友帮助记录：一共扔了几次？有几次是扔在圆里面？ 实验结束后，你只须用“芝麻落在圆里的次数”除以“一共扔的次数”得到的结果就是圆的面积。则pi就是“圆的面积*4”了 当然，你扔的次数越多，结果就越精确！()

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