ellipsefit

1. m-file lpc2cep: Convert the LPC a coefficients in each column of lpcas into frames of cepstra. 2. m-file lpc2spec:Convert LPC coeffs back into spectra

基于信道的历史信息来预测不同信道的未来可用时间可以帮助CR选择一个最佳信道进行信息传递。不同的预测准则应用到周期或是随机的开关模式中。一个CR可以学习以往不同信道的模式。我们提出一个简单的分类和学习方法去检测模式的类型和收集需要的信息用于智能信道的选择。MATLAB仿真结果显示提出的方案在随机信道的随机和周期模式中都有优越的表现。随着时间的变化，新到的切换次数减少到55 ，并且延迟时间也相应减少，而吞吐量却在提高。(Prediction of future availability times of different channels based on history information helps a cognitive radio (CR) to select the best channels for control and data transmission. Different prediction rules apply to periodic and stochastic ON-OFF patterns. A CR can learn the patterns in different channels over time. We propose a simple classification and learning method to detect the pattern type and to gather the needed information for intelligent channel selection. Matlab simulations show that the proposed method outperforms opportunistic random channel selection both with stochastic and periodic channel patterns. The amount of channel switches needed over time reduces up to 55 , which reduces also the delay and increases the throughput.)

DataBurn is an Objective-C example which demonstrates some of the features of DRTracks. The sample illustrates how to create a DRFolder from an existing folder on the source disk and burn it to disc, creating a hybrid ISO9660/Joliet/HFS+ data CD. The sample also uses the DiscRecordingUI framework to present the standard burn setup and progress user interfaces.

说明：  本代码是使用遗传算法解决优化约束问题，可直接运行。(本代码是使用遗传算法解决优化约束问题，可直接运行。 This code is the use of genetic algorithm to solve constrained optimization problems,which can be directly run.)

超宽带OFDM通信系统仿真；保护间隔；循环前缀；QPSK 调制(Ultra wideband OFDM communication system simulation protection interval cyclic prefix QPSK modulation )

By evaluating its performance through computer simulations for various channels(it suitable for high-speed channel equalization.)

关于viterbi编码的，与信道编码有关，很适用(viterbi_decoder3_p)

自己用matlab编写的kalman filter程序，程序注释清晰，便于初学者学习(Their use of kalman filter in matlab preparation procedures, procedures notes clear and easy for beginners to learn)

MATLAB语言编写的利用遗传算法优化小波神经网络的一个例子(MATLAB language, an example of the use of genetic algorithms to optimize the wavelet neural network)

三维的分数阶傅立叶变换，用于非平稳信号处理(the 3D Fractional Fourier Transform)