chengxu

MATLAB code for signal filtering with fixed point coefficients

蓝牙跳频系统用simulink的仿真.系统主要包含信号传输，信号接收，谱分析以及无码分析部分(The system of Blueteeth Frequency hoping worked under simulink )

分数阶傅里叶变换计算方面,使用大量的有限元法求解偏微分方程，是本科毕设的题目。( Fractional Fourier transform computing, Using a large number of finite element method to solve partial differential equations, The title of the commercial is undergraduate course yo.)

用M语言编写的画多元数据平行坐标图代码，数据用的是一组蔬菜油（国际期刊）数据，写得不好，多指教。(By M art multi-language data parallel coordinates graph code, data used are a group of vegetable oils (International Journal) data, not well written, multi-index.)

用于改进的wilson叶片设计，亲测可行。(wilson design for wind blade)

使用matlab编程工具实现霍夫曼编码，已通过运行。(Finish the huff_code by using the tool of matlab,and the code could run.)

A biometric system provides automatic identification of an individual based on a unique feature or characteristic possessed by the individual. Iris recognition is a part of the biometric identification methodologies which also include facial, fingerprint, palm and many other biological traits. They all offer new solutions for person identification, authentication and security. Currently users have to carry security badges or know certain pin/pass codes in order to get into secure zones or to log into a computer. In this paper we propose an algorithm for iris recognition, which can be applied in real time with standard webcam and with good matching result.

long memory article 1994

极化码在高斯信道下CA——SCL译码算法(CA - SCL decoding algorithm for polarization code in Gauss channel)

自编实现快速fft程序，速度较调用系统的fft稍慢(Fast fft own procedures, faster than the system call fft slower)