FNN

说明：  创建bp神经网络，实现对车辆速度进行预测的matlab程序(Establish BP neural network to realize the matlab program of vehicle speed prediction)

说明：  该代码主要实现的功能是空时编码误码率，误码率随着信道的变化而变化(THE BER OF THE SPACE BASE CODE，the ber varied with the channel)

四轴飞行器制作总结，包括四轴制作过程中马达、电调的选择，以及相关代码。(Four aircraft production summary, including the motor axis in the production process, the choice of power transfer, and the relevant code.)

matlab程序，四种不同的信号，在4个区域显示(matlab program, four different signals, in the four regions showed)

说明：  噪声调频信号的产生：1、产生高斯噪声电压 2。用6极点椭圆滤波器形成噪声带宽 3。将滤波器输出送到一压控震荡器，输出即为调频噪声干扰信号(Noise FM signal generation: 1, resulting in Gaussian noise voltages 2. 6-pole elliptic filter noise bandwidth of the formation of 3. The filter output to a voltage controlled oscillator output signal noise shall be FM)

simulation modulate & demod PM

基于最优的walsh序列的扩频系统仿真，可以参考最有系统的过程。(ds system using walsh sequence)

说明：  LMS语音信号去噪matlab代码，可以对一段较长的语音信号进行去噪(LMS speech signal denoising matlab code, you can denoise a long speech signal)

递推最小二乘算法，用matlab实现递推最小二乘参数辨识(recursive least square)

说明：  三相电压不平衡度计算 simulink模型，可供参考 调试正确(The Simulink model for calculating unbalance of three-phase voltage can be used for reference and debugging correctly.)