DWT

Bluetooth is a wireless technology that allows computers, phones, headsets, PDA s and other devices to wirelessly communicate over short distances (up to 33 feet). Bluetooth uses radio waves (in the 2.4 GHz range), and is designed to be a secure, low power and inexpensive way of connecting and exchanging information between devices without the need for wires or cables to link devices together.

计算太阳黑子的活动周期，分别利用周期图法，Lenvinson-Durbin法和Burg法求得其功率谱，并画出曲线，观察得到活动周期(Calculation of sunspot activity cycle, namely the use of periodogram, Lenvinson-Durbin and Burg obtained the power spectrum, and draw curve, observation cycle)

面向单变量系统的隐式广义预测控制，时域预测域6，控制域3(Length of time domain nn=6 Length of prediction n=6 Length of control domain m=2 control weighting efficient=0.8 Diffusion coefficient a=0.3 format of (n+1) order square P:0- duijiao,1-square1 original value of (n+1) order square P:0 )

四阶龙格-库塔法的MATLAB实现,给出了程序源代码。(Fourth-order Runge- Kutta method MATLAB implementation)

说明：  用matlab仿真实现ldpc编解码，BPSK调制, 测定误码率与信噪比的关系(Using matlab simulation to realize LDPC Encoding and decoding, BPSK modulation, and to determine the relationship between bit error rate and signal-to-noise ratio)

very nice tutorial to speed up the matlab codes by vectorization, etc.

给出了一个线性调频信号的Gabor变换，使用的是过抽样，其中参数q=4.(given a chirp signal Gabor transform, is the excessive use of sampling, which parameter q = 4.)

matlab中图像卷积和自相关函数的演示和解释，这两个函数在使用时有很多技巧需要注意。(demonstrated and explained matlab image convolution and autocorrelation function, these two functions have a lot of skills in the use of note.)

粒子群优化算法源程序，广泛应用于PID参数整定，神经网络优化，交通物流分析等等。(PSO algorithm source, widely used PID parameter tuning, neural network optimization, traffic flow analysis and so on.)

多普勃效应因子与表观时间和表观长度,网上是要花钱买的，(Multi-factor and the apparent effect of普勃time and the apparent length, the Internet is to spend money, and)