QPSK

用MATLAB实现数值分析的不同计算方法的实现过程，是研究生一年级需要的(Numerical Analysis Using MATLAB to achieve the realization of a different method of calculation process is required first-year graduate students)

在MATLAB中实现UKF程序,内容中有详细的程序和相关的程序说明!(Implement of UKF in matlab)

Construct a Low Density Parity Check Matrix for the three code rate of DTMB standart of TDT. The data has obtain of GB2006-20600 paper.

说明：  信号调幅，对于输入的正弦信号进行模拟幅度调制、传输、解调(Signal amplitude, the input analog signal is a sinusoidal amplitude modulation, transmission, demodulates)

说明：  设计一个理想通信系统，实现信息字符流的传输。 发射器： <1>将消息（字符串形式）编码成一个符号序列； <2>用脉冲成形将串符号序列转变成模拟脉冲信号； <3>将模拟脉冲信号调制到载波信号上。 接收器： <1>对接收的信号进行采样； <2>解调信号成基带信号； <3>将信号恢复成字符串。(Design an ideal communication system, the realization information transmission of character flow. Emitters: < 1 > will news (string form) coding into a symbol sequence < 2 > by using a pulse forming will string of symbols into a simulation pulse signal sequences < 3 > will simulate the pulse signal modulation to carrier signal. Receiver: < 1 > of received signal sampling < 2 > demodulation signal into baseband signal < 3 > will signal back into a string.)

说明：  little matlab script but still no error

用MATLAB语言仿真实现CDMA系统中开环下发射分集的系统性能仿真(Using MATLAB simulation system performance simulation CDMA system under open-loop transmit diversity)

FFT的说明和一些matlab 例程，希望能有所帮助(Fast Fourier Transformation under the environment of MATLAB)

3维拓扑优化计算算法，可用于初级拓扑优化学习和在此基础上进行拓展(3 d topology optimization algorithm can be used for primary topology optimization learning and expansion on this basis)

用matlab仿真信息论率失真函数R（D）(this is a matlab based program that emulates the calculation of R(D).)