dbain

This contains just the pure aloha

objective-c textfield 下拉菜单实现(objective-c textfield drop-down menu to achieve)

1．用Matlab产生正弦波,矩形波,以及白噪声信号，并显示各自时域波形图 2．进行FFT变换，显示各自频谱图，其中采样率，频率、数据长度自选 3．做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱 4．用IFFT傅立叶反变换恢复信号，并显示恢复的正弦信号时域波形图(1. Produce sine wave, square wave, and the white noise signal with Matlab, and their time-domain waveform display 2. FFT transform, display each spectrum, where the sampling rate, frequency, length optional data 3. RMS to make maps of the three signals, power spectrum, as well as the number of RMS map 4. Restored by inverse Fourier transform IFFT signal and displays the time domain waveforms sinusoidal signal recovery)

用matlab实现ofdm系统中的DA转换和上变频到射频载波上。(Using MATLAB to implement the DA conversion in the OFDM system and up conversion to the radio frequency carrier.)

CIC(Cascaded Integrator Comb) filter, 即级联积分梳状滤波器, 具有结构简单, 便于处理, 运算速度快等特点(CIC(Cascaded Integrator Comb) filter)

基于特征的影像匹配——SIFT Method!!! 相当经典,只不过是MatLab源码，希望有哪位高手能转换成VC++源码!(feature-based image matching-- physiology Method! ! ! Quite classic, MatLab is the only source, which experts hope will be converted into VC source!)

实现数值分析中单纯形法改进方法的matlab代码，即改进单纯形法算法，能够实现大型稀疏矩阵的迭代，这是3/3..(Numerical analysis to achieve improved method simplex method matlab code that modified simplex method algorithm, to achieve large sparse matrix iteration, which is 3/3 ..)

基于matlab simulink搭建的buck降压斩波电路，模型正确可直接使用(Based on the the matlab simulink structures buck buck chopper circuit, the model is correct and can be used directly)

dct algorithm watermark

提出了采用小波包的方法对供暖双吸式离心水泵轴承振动信号进行去噪和提取表征 相应轴承故障的频带能量 并采用 BP 神经网络进行训练和故障识别 通过 MATLAB 进行了仿真经试验验证该方法能够有效地识别出轴承故障(The wavelet package is adoptted to De-noise and extract band energy that represent bearing fault. and the BP neural network is adopting to train and recognize faults. Through MATLAB simulation, After the test validate the method, it can effectively recognize the bearing fault.)