backstep1901

数字通信系统模拟，AWGN，给定不同的SNR，测试BPSK 4PAM 8PAM抗噪声能力。(Digital communication system simulation, AWGN, given the different SNR, test BPSK 4PAM 8PAM noise immunity.)

多阵元天线方向图的形成，可用于和差波束测角，代码已经用过很多年，实测非常实用！(beam forming)

基于matlab冒泡法排序的实现,Matlab排序函数,在Matlab中排序某个向量（一维）时，可以使用sort.(Bubble Sort )

image watermarking using adaptif methode at RGB image using matlab...

用matlab实现对一段语音数据的语谱图（窄带和宽带）的画图分析(Spectrogram of a voice data (narrowband and broadband), drawing analysis using matlab)

时移门函数的傅里叶变换三维演示,可用于信号与系统的教学演示，增进对傅里叶变换的理解。(Sliding door when three-dimensional Fourier transform of the function demo, signals and systems can be used for teaching demonstration, enhance understanding on the Fourier transform.)

tuning pid controller "matlab"

混沌同步 对初学者很有帮助的matlab (chaos synchronization)

程序采用的是两层循环上实现位移谱的求取。内循环实现在地震波下由上一步所得到的位移、速度和加速度得到下一时间间隔后的位移速度和加速度；外循环实现在不同结构自振周期（频率）下遭遇地震波的响应。(Program uses a two-layer loop on calculate displacement spectra. Cycle based on seismic waves obtained the previous step under the displacement, velocity and acceleration are next after the interval velocity and Acceleration outer loop implementation in different natural period of structure (frequency) the response under earthquake wave.)

QPSK调制与解调，运用MATLAB语言编写(QPSK modulation and demodulation using the MATLAB language)