SAarithmetic

Algorithm for frequency analysis usign FFT

find the center of gravity of speech singal.

matlab单步丢番图方程与多步丢番图方程源码(code for sindiophantine and multidiophantine)

说明：  对信号做五点三次平均法平滑处理，已编成函数，一种平滑较快，一种较慢。(Three of the signal with an average of five-point smoothing method has been compiled function, a smooth and rapid, a slower.)

运动目标识别，采用背景差分方法。背景图像由均值法获得。里面的视频换成前几帧换成纯背景效果能更好一点(Moving target identification, using the background difference method. Background image obtained from the mean. Which replaced the previous video frame replaced by pure background a little better results)

cha 011h is a multimedia developer tool . helps us to create simple softwares.

说明：  研究高超声速飞行器在纵向的运动情况，对系统的速度和飞行高度进行仿真分析，我们将对在不同的 、 值的条件下分析出系统的最优性能(The longitudinal motion of the hypersonic vehicle is studied, and the system speed and flight height are simulated. We will analyze the optimal performance of the system under different conditions and values.)

编程建立一通讯簿，存放有姓名、电话号码、住址，然后对通信簿进行查找、添加、修改及删除。(comunication)

构建一个理想信道基本QPSK仿真系统,仿真结果有 a.基带输入波形及其功率谱 b信号及其功率谱 c.QPSK信号星座图 2.构建一个在AWGN（高斯白噪声）信道条件下的QPSK仿真系统，仿真结果有 a.QPSK信号及其功率谱 b.QPSK信号星座图 c.高斯白噪声信道条件下的误码性能以及高斯白噪声的理论曲线，要求所有误码性能曲线在同一坐标比例下绘制(qpsk modem emulation, plus white Gaussian noise)

MATLAB程序设计之图形huffman编码源程序MATLAB programming source code for pattern huffman coding(MATLAB programming of graphics huffman coding source MATLAB programming source code for pattern huffman coding)