Video-huong-dan-doc-tutorial-trong-opnet11.5

指纹识别源码---matlab版--附图指纹图像(Fingerprint identification source code--- matlab version- attached fingerprint image)

说明：  太阳黑子的时间序列用最小二乘法模型定阶的C语言程序(Sunspot time series model using the least square method to determine the order of the C language program)

this matlab code about testing ofdm

经典粒子群算法的matlab实现。用函数进行测试实验，并给出算法寻优迭代的效果图(Classical PSO algorithm matlab. Experiments with test functions, and gives an iterative optimization algorithm renderings)

DFT进行频谱分析时的三种现象 1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。 采样前加低通滤波器防混叠 2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。 改用其他窗函数（非矩形）改善泄漏。 3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)

是全息谱画图的函数，很有用的程序是全息谱画图的函数，能更具故障的数据来分析故障元婴(Holographic spectrum is drawing function, very useful programs )

projectreportsimulink bidirectionalconverter

说明：  是处理噪声的一个小程序很有用，希望对大家有所帮助(To deal with noise, a small program useful and want to help everyone)

说明：  ukf与ekf做对比，可以看出ufk与ekf的性能差别(compare ukf with ekf)

rls自适应算法，以仿真过，可供大家参考(rls adaptive algorithm, to simulate too, for your reference)