case_study_3

一些关于谱分析的matlab程序，和朋友们一起分享，希望能共同交流！(Spectral analysis on the matlab program, and friends to share, hoping to share!)

利用MATLAB产生7位、13位巴克码并画出频谱图。(Generated 7、13 Barker code and draw the frequency spectrum using MATLAB. )

蓝牙调频通信系统simulink仿真,蓝牙调频通信系统simulink仿真!(bluethooth fsk systerm simulink,bluethooth fsk systerm simulink!)

power_surgnetwork.rar,功率电子领域matlab仿真文件，已经验证过，程序运行正常(power_surgnetwork.rar,Power electronics field matlab simulation file, has already been verified, the normal operating procedures)

image bit plane slice and bit plane anding

自适应滤波，LMS算法，matlab编写，线谱提取(Adaptive filtering, LMS algorithm, matlab prepared line spectrum extraction)

说明：  光伏并网逆变器，可以学光伏组件及逆变器控制(Photovoltaic grid connected inverter, can learn photovoltaic modules and inverter control)

三维线阵波束图 水声工程专业必看！！！！！！！！！！初学波束形成的同学肯定用得着(ULA beampattern )

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 )

MATLAB应用程序接口用户指南。这里面很全面的介绍了matlab的借口常用方法(MATLAB Application Program Interface User' s Guide. There is a very comprehensive introduction to the common method matlab excuse)