fusion

说明：  qpsk调制在awgn/rayleigh信道下的误码性能比较，以及信号的功率谱和星座图(QPSK modulation in awgn/Rayleigh Channel Performance Comparison of error, and the signal power spectrum and constellation)

三种方法实现数字下变频：直接法、bessel插值、多相滤波等(three method of DDC)

MATLAB图形技术——绘图及图形用户接口(MATLAB graphics- graphics and graphical user interfaces)

语音识别，利用matlab hmm 实现语音识别(hmm matlab)

m序列应用于跳频通信系统，给出了跳频序列的生成函数，并给出高斯白噪声下和多用户干扰下的误码率曲线。(m sequence used in frequency hopping communications systems, frequency hopping sequences give the generating function, and give under the white Gaussian noise and multi-user interference of the bit error rate curve.)

MAtlab画图方法集锦，PPT格式，画图方法比较好，有参考价值(Drawing by Matlab.And there are many methods you could learn.)

说明：  谱估计的MUSIC算法，里面有详细的介绍，对做谱估计的同学应该有帮助。(The MUSIC spectral estimation algorithm, there are detailed introduction to the spectral estimation of the students do should be helpful.)

this code simulates phase array antena in matlab

黄金分割法求最小值，验证通过。可以在指定区间内，求得最小值(Golden section method for the minimum, verified by. Be within the specified range, the minimum value is obtained)

%fm.m %频率调制的Matlab演示程序. %被调信号为m(t)=sin(100t).( fm.m frequency modulation of Matlab demo program. transferred signal m (t) = sin (100t).)