spectra

this is basic for understood radar

This routine performes trellis quanization of input sequence and provides output which should be further arithmetically coded. The program can be used for research ot teaching purposes to study performance of vector quantization, in particlular code-based trellis (multidimensional lattice) quantization.

This m.file is intended to perform the numerical integration of a structural system subjected to an external dynamic excitation. The integration scheme utilized for this alysis is the newmark alpha-beta method.

利用DCT进行图像压缩（首先将图像分割成8×8的图像，对每个子图像进行DCT，这样每个子图像有64个系数，舍去50％小的变换系数，进行2：1的压缩。）(Using DCT for image compression (first image into 8 × 8 image, for each sub-image DCT, so that each sub-image by a factor of 64, rounding 50 of the small transform coefficients, the 2:1 compression.))

viterbi算法，通过matlab工具实现，适合初学者学习(viterbi algorithm by Matlab tool for beginners to learn)

matlab数字图像处理技术，1.2图像的矩特征，很实用(matlab digital image processing technology, features 1.2 image moments, it is practical)

详细的实现无标度网络的算法，可以基于此建立人际网络等(Detailed implementation of the algorithm scale-free networks, social networks can be established based on this and other)

再matlab下面实现信号的fft变换。 是fft函数。(fft)

simulink下茶油发电机模型 采用PID自适应控制，适合船舶电力推进发电机( Diesel generator)

MATLAB中一些常用的函数，在做实验时可以直接选定函数进行编程。(Some commonly used functions in MATLAB, the experiment can be programmed directly to the selected function.)