guanji

认 知 无 线 电 中 的 频 谱 检 测 技 术(cognitive radio detection)

用MATLAB实现的BPSK,DELAY,OFDM,QPSK.仿真技术。来自MATLAB爱好者论坛。(Using MATLAB implementation BPSK, DELAY, OFDM, QPSK. Simulation technology. From the MATLAB lovers forum.)

matlab例题。这样的描述就已经很清楚了。(matlab example. This description has been very clear.)

信号检测与估计课后答案的Matlab程序，非常适合初学者从实际中了解该课程(Signal detection and estimation the afterschool answer Matlab program, very suitable for beginners to learn about the course from the actual)

建立了神经网络迟滞模型，由于该模型是基于EHM 的混合神经网络模型，因此简记 为HNNM 模型。(ANN)

有关OFDM的资料，对需要的朋友有帮助，谢谢(about OFDM)

该程序主要是比较对信号分别进行希尔伯特变换HT和广义希尔伯特变换GHT所得到瞬时相位的比较，结果证明GHT较HT对信号有较好抗噪特性，同时瞬时相位也可以用来重构信号，但主要起了指示的作用。(We can get instantaneous phase of the signal by HT or GHT，and the results prove that GHT has better noiseproof feature,namely robustness than HT.In the meantime,we could restruct signal using the information of instantaneous phase,but it mainly has good directives roles.)

信号的频谱分析函数，输入复信号，fft的长度和Fs，可以直接输出信号频谱图。(Signal spectrum analysis function, the input complex signal, fft length and Fs, can be directly output signal spectrum.)

Antenna and EM Modeling with MATLAB

直升机的三个姿态角的pid控制算法，matlab中的simulink仿真程序，配合最优pid设计算法，得到很好的控制效果(Three attitude angle of the helicopter pid control algorithm matlab in simulink simulation program, with the optimal pid design algorithm, well controlled)