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说明：  简要介绍了认知无线电中基于能量检测的频谱感知方法,在分析能量检测法原理和性能基础上,研究了噪声的不确定性对检测性能的影响. 仿真表明,能量检测法是一种简单、有效的频谱感知方法.(A brief introduction of cognitive radio spectrum sensing based on energy detection method, the analysis and performance of energy detection principle, based on the uncertainty of the noise effect on detection performance. Simulations show that the energy detection method is a simple, effective spectrum sensing method.)

绘制8阶Bessel和Butterworth模拟低通滤波器的幅频响应曲线及群延时曲线( Draw order Bessel and Butterworth 8 analog low-pass filter amplitude frequency response curve and group delay curve)

it is the algorithm for nlms for a sound wave

it may be worth to see here is a matlab example code

求解函数的的极值，可以较快较准的找到局部极值。(Ask the extreme value of the function)

化工上的程序控制 系统：二阶串联回馈热搅拌器，使用2个热交换器分别对2个串联的搅拌槽加热。 控制策略：我们将利用2个控制阀来控制热交换器，以维持T2和T4的温度在理想的控制范围之内 可计算：GP，GV，GC，误差值时，PID 可做动态测试 附上文件操作及说明档(Chemical process control on System: Second-order hot mixer series feedback, the use of two heat exchangers in series, respectively, for two stirred tank heating. Control strategy: We will use the two control valves to control the heat exchanger to maintain the temperature in the T2 and T4 within the scope of the ideal control Calculated value: Gp, Gv, Gc, the error value, PID Dynamic testing can be done Attach file operations and help files)

运筹学里的优化算法，源代码，而且经过matlab运行过了(Operations Research in the optimization algorithm, source code, and after a run Matlab)

说明：  天牛须算法与pid控制算法结合，通过matlab实现，欢迎下载(Tianniu must algorithm and PID control algorithm, through MATLAB, welcome to download)

周立功公司提供的《51单片机新技术》 (Ligong weeks provided by the company )

this is o program to graph defirent kind of signals and change them, like module, time scale