matlab_1

AM与FM调制仿真程序，供大家参考！希望对大家学习有用！(AM and FM modulation simulation program, for your reference! We hope to learn useful!)

Mersenne Twister随机数发生器（Mersenne Twister generator,MTG for short）是Makoto Matsumoto于1998年对TGFSRG(旋转广义反馈移位寄存器发生器)的更进一步改进。(Mersenne Twister random number generator (Mersenne Twister generator, MTG for short) is Makoto Matsumoto in 1998 TGFSRG (rotation generalized feedback shift register generator) is further improved.)

Only coding parameters of sound generation model • LPC is an example where parameters are a1, a2, …ak , e(n) • Music instrument parameters: pitch, loudness, timbre, …Frequency Masking: If a tone of a certain frequency and amplitude is present, then other tones or noise of similar frequency cannot be heard by the human ear • the louder tone (masker) makes the softer tone The Masking Threshold is used by the audio encoder to determine the maximum allowable quantization noise at each frequency to minimize noise perceptibility: remove parts of signal that we cannot perceive

matched field processing定位仿真。根据porter的kraken模型跑出来的。(matched field processing positioning simulation. According porter ran out of the kraken model.)

为了提高小波分析方法在混沌去噪中的自适应能力，对不同尺度下的小波信号设定调节因子，根据混沌序列 关联维的大小确定最优阈值。为了提高寻优效率，采用遗传算法全局自适应搜索最优阈值。利用该方法对Lorenz混沌时 间序列进行了去噪分析，结果表明所提方法是非常有效的。(For the purpose of improving adaptive performance of chaotic signals de-noising with wavelet transform，a floating parameter is set to regulate the threshold of wavelet signal on different scales according to the correlation dimension of chaotic time series．The genetic algorithm is helpful tO obtain global optimum thresholds and tO reduce much time wasted by the adaptive searching computation．De-noising for Chaotic time series generated by Lorenz system is simulated to corn— pare with other methods，and the results showed that the proposed method iS effective)

关于分形压缩的matlab代码。采用的算法固定分块的算法。适合初学者。(On fractal compression matlab code. The algorithm uses a fixed block of the algorithm. Suitable for beginners.-)

该程序能通过加标签将模拟表盘得刻度删除掉！通过大量得图片都能得到很好得效果！(through the process of labeling analog dial in the calibration deleted! Through a picture can be a very good result!)

加入噪声的音乐信号的分帧后的短时能量和过零率的特性，用matlab语言的实现(Short time after joining the framing of the noise of the music signal energy and zero-rate characteristics using Matlab language)

受激布里渊散射程序源码，泵浦光及散射光的Matlab模拟，很好很强大(Stimulated brillouin scattering program source code)

turbo码的MAP解码 SISO_MAP_decoding(Single input single output MAP decoding)