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噪声中正弦信号的现代法谱分析，采用了直接法、间接法、Bartlett法和Welch法，分别分析了不同窗长度、不同窗函数和不同信噪比对谱估计的影响。(Modern normal spectrum analysis of sinusoidal signal in noise adopts direct method, indirect method, Bartlett method and Welch method. The effects of different window lengths, different window functions and different signal-to-noise ratios on spectrum estimation are analyzed respectively.)

zulu component for joomla

designing pi and pid controllers using feedback.

matlab 牛顿差值 拉格朗日差值 三次样条差值 (matlab newton )

卡尔曼滤波的matlab例程，对初学者理解卡尔曼滤波原理很有好处..(kalman filter)

Ant Optimization algorithm

分析chirp信号的改进fft算法，该FrFT算法是从matlab论坛中的算法，尝试后可用(Improved FFT algorithm for analyzing chirp signals)

多种数学迭代方法，包括雅克比法、高斯-赛德尔迭代法、和广义理查德森迭代法。(A variety of mathematical iterative methods, including Jacobi method, Gauss- Seidel iterative method, and the generalized Richardson iterative methods.)

语音信号进行分析、处理和设计。用MATLAB做变声器的原理是通过改变输入声音频率，进而改变声音的音色、音调，使输出声音在感官上与原声音不同。变声器是借助对声音音色和音调的双重复合改变，实现输出声音的改变。通过自己发声，共振峰频率的改变是基于重采样实现的(Speech signal analysis, processing and design. MATLAB do voice-changer works by changing the input frequency of the sound, and then change the sound of the tone, pitch, so that the output audio with the original sound in different senses. Voice Changer is the use of sound timbre and tone of the dual composite changes, realize the output sound changes. Through their own sound, formant frequency change is implemented based on resampling)

说明：  sift特征匹配代码，并带有相关说明文档(SIFT feature matching code with relevant documentation)