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说明：  MATALAB编写的QPSK用于载波同步的锁相环，其结构为平方环(MATALAB编写的QPSK的用于载波同步的锁相环，其结构为平方环)

常规波束形成器DOA估计算法 , Capon最小方差估计方法 , 多重信号分类(MUSIC)算法 的比较(' Conventional beamformer DOA estimation algorithm' , ' Capon minimum variance estimation methods' , ' multiple signal classification (MUSIC) algorithm' comparison)

Constellation of received signals of PSK modulator after being passed through AWGN channel

calculating bit error rate in hamming code using soft decoding

该代码能是针对物理实验光学仿真，实现基于matlab的迈克尔逊干涉仿真。(The code could be for physics experiments optics simulation, matlab-based simulation of a Michelson interferometer.)

dsp软件试验，通信类学生懂的—DTMF信号的编码(dsp software testing, Communications students understand-DTMF encoding signal)

说明：  《matab小波分析》第五章的源代码，比较全！(&quot Matab wavelet analysis,&quot Chapter V of the source code, compare the whole!)

vc++调用matlab，利用matlab引擎(vc++ call matlab, using matlab engine)

基于lms算法的自适应滤波器的matlab实现（包括详细的编程代码）(Adaptive filter based on the lms algorithm matlab implementation (including details of the programming code)

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(Cochlear substantially equivalent to a filter set, cochlear filter is used on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )