advancing-a-delay-of-signals

用Maple和Matlab解决科学计算问题(with Maple and Matlab scientific computation to solve problems)

说明：  Edge detection result should be enhanced using linear method like Median filter to remove the garbage around the pupil to gain clear pupil to determine perfect centre. Get the centre of the pupil by counting the number of black pixels (zero value) of each column and row. Then get each row and column that has the maximum number of these black pixels. Then determine the center by simple calculation according to the image coordinate to set it correct on the image, consequently we can determine the radius of the pupil. Thus we can find the pupillary boundary (inner). A similar procedure is extended by using a coarse scale to locate the outer boundary (limbus) which can be apparent by using the mid-point algorithms of circle and ellipse.

measurements of the quantization noise

数据通道剥离伪码后的载波估计问题。对直接序列扩频系统的数据通道，假定接收设备已“完美”地锁定接收信号伪码，并实现了伪码剥离其中，信号幅度、电文、载波多普勒和载波相位均未知。电文的速率为10Hz。由于信源与接收端信号传输时延的不确定性，收到的信号电文是从某个未知时刻开始的。

This is a very helpful toolkit for matlab beginners. It includes algorithm for pattern classification, as well as image processing.

多通道语音回声消除的频率空间算法，空间传递函数自己模拟(Multi-channel echo cancellation frequency domain algorithm)

这是一个关于舍此识别的一个matlab程序，可以识别舍此的位置。(This is a about the recognition of a matlab program that can identify the alternative location.)

本程序是matlab图像变换技术的基础内容，包括：图像Radon变换；图像傅立叶变换；图像离散余弦变换等等。

16QAM数字通信信号的调制解调程序，尽可能的仿真实际的通信系统(16QAM modulation and demodulation digital communication signal process, as far as possible the actual communication system simulation)

说明：  曲线标记改变的MATLAB程序。需要的来下载。(Curve marked change in the MATLAB program. Need to download.)