A1_6

image processing filters frequency domain code such as high pass and low pass filters

Particle Swarm Optimization matlab code

详细的卷积编码与维特比译码算法。产生随机信号，对信号进行卷积编码，然后经过数值转换、格雷编码，QPSK调制，进入加噪信道，之后进行QPSK解调，格雷解码， 数制转换、 维特比译码得到接收端的信号。(Detailed convolutional coding and Viterbi decoding algorithm. Random signal, the signal convolution coding, and then through numeric conversion, Gray coding, QPSK modulation, plus noise into the channel, followed by QPSK demodulation, decoding Gray, number system conversion, Viterbi decoding to get the receiving end of the signal.)

说明：  用matlab实现了fragile water mark易碎水印(Achieved using matlab Fragile Watermark fragile water mark)

模拟数字信号进行matlab的FFT运算。对频谱进行对数谱和功率谱的转换。(Analog and digital signal matlab the FFT operation. The number of the spectrum of the spectrum and power spectrum of the conversion.)

用matlab写的有限元程序，经典中的经典！！！！谢谢！(Matlab write the finite element program, the classic of classics! ! ! ! Thank you!)

kalman滤波函数，保存到同一目录即可直接调用函数。(kalman filter)

Some algorithms of variable step size LMS adaptive filtering are studied．The VS—LMS algorithm is improved． Another new non-linear function between肛and e(／ t)is established．The theoretic analysis and computer simulation results show that this algorithm converges more quickly than the origina1．Furthermore，better antinoise property is exhibited under Low—SNR environment than the original one．(variable step size of a LMS daptive filtering are studied. The VS-LMS algorithm is improved. Another new non-linear function between anus and e (/ t) is established. The theoretic analysis and computer simulatio n results show that this algorithm converges mo 're quickly than the origina1. Furthermore, better antinoise property is exhibited under L ow- SNR environment than the original one.)

RCS一维成像 在暗室中对散射体进行测量，将测试数据进行保存。此程序可由测试数据计算一维像(RCS one-dimensional imaging in the dark of the scattering body measurements, test data to be saved. This procedure may be test data to calculate the one-dimensional like)

Wind turbine output power vs. rotational speed, with wind speed as parameter