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Project management handbook for NASA projects.

Matlab数学建模工具箱 各种算法、程序源代码应有尽有(Matlab toolbox of mathematical modeling algorithms, source code everything)

此程序是OFDM的循环谱计算，希望对大家有用，(this procedure is the cycle OFDM spectrum, we hope to useful,)

该MATLAB程序实现了simplex迭代算法，该算法可以在不对目标函数求导情况下进行优化，适合数据量较大的算法优化。(The MATLAB program to achieve a simplex iterative algorithm, which can be optimized in the right objective function derivation, the large amount of data suitable algorithm optimization.)

一共5个代码，其中aufgabe和lms的功能是输入一个脉冲信号，根据不同的系统参数，得出输出信号。 cordic是一个算角度旋转的方法。 gray和graydecode是输入一个数字，对应输出每次只变一位的2进制输出信号。 因为我还是个学生，可能代码比较简单，希望站长谅解，谢谢！我真心希望能够成为该站的一员，学习到有用的知识。(A total of five codes, which aufgabe and lms function is a pulse input signal, depending on the system parameters, derived output signal. cordic is a rotation angle calculation method. gray and graydecode is to enter a number, corresponding to a time become an output of two binary output signals. Because I was a student, you may code for relatively simple hope that owners understand, thank you! I really hope to be a member of the station, to learn useful knowledge.)

The spectrum sensing problem has gained new aspects with cognitive radio and opportunistic spectrum access concepts. It is one of the most challenging issues in cognitive radio systems. In this paper, a survey of spectrum sensing methodologies for cognitive radio is presented. Various aspects of spectrum sensing problem are studied from a cognitive radio perspective and multi-dimensional spectrum sensing concept is introduced. Challenges associated with spectrum sensing are given and enabling spectrum sensing methods are reviewed. The paper explains the cooperative sensing concept and its various forms. External sensing algorithms and other alternative sensing methods are discussed. Furthermore, statistical modeling of network traffic and utilization of these models for prediction of primary user behavior is studied. Finally, sensing features of some current wireless standards are given.

遗传算法解决作业车间调度问题，,这一M文件计算工序的加工顺序与加工时间(Genetic algorithms to solve the job shop scheduling problem,, the M-file to calculate the value of the objective function.)

该文档是《粒子滤波原理及应用MATLAB仿真》一书的配套例程，对于学习粒子滤波算法的MATLAB实现很有帮助(This document is a companion routine to the book Particle Filtering Theory and Application of MATLAB Simulation. It is helpful for learning MATLAB implementation of particle filter algorithm.)

Comparison of the performances of the LS and the MMSE channel estimators

径向基神经网络Matlab编程，包含4个分厂不错的Matlab程序，读者可以下载运行一下看看。(Radial Basis Function Neural Networks Matlab programming, including 4 branch good Matlab program, readers can download to run about to see.)