control

D2D通信分为集中式控制和分布式控制。集中式控制由基站控制D2D连接，基站通过终端上报的测量信息，获得所有链路信息，但该类型会增加信令负荷(D2D communication is divided into centralized control and distributed control. Centralized control is connected by the base station. The base station obtains all link information through the measurement information reported by the terminal)

瑞泰2812的9个例程C源代码，包括混合编程，PID算法，FFT算法，电机控制等源代码，可直接修改后移植使用(9 of 2812 Ruitai C source code routines, including the mixed programming, PID algorithm, FFT algorithms, source code, such as motor control, can be directly transplanted to use the revised)

流体动力学的两相流的matlab程序 使用LBM方法 是学习流体力学的一个很好入门程序(The two-phase fluid dynamics of the matlab program uses LBM method is a good entry to study fluid dynamics program)

说明：  维纳滤波matlab代码，对语音去噪有较明显效果，可做去噪算法借鉴(Wiener filter matlab code,It has obvious effect on speech denoising and can be used for reference in denoising algorithm)

说明：  实现BCH码的编码和解码程序，支持参数更改，已在大型项目实用(BCH code and decode matlab)

说明：  算法给出了粒子群对pid控制器参数的整定，程序详细，可供初学者参谋。(The algorithm gives the parameter tuning of the PID controller by particle swarm optimization. The program is detailed and can be used as a reference for beginners.)

一个波束形成的例子，比较了在瑞利信道中使用波束成形和不使用波束成形的误码率。(An example of beamforming is made to compare beamforming and without beamforming bit error rate in Rayleigh channel.)

基于IGBT的双PWM脉宽调速系统（风力发电并网变流器仿真）(IGBT-based Dual PWM PWM system (wind power generator converter simulation))

说明：  讨论了变换域通信系统中收发端一致时的系统性能，包括AWGN信道及单音，多音，窄带，扫频干扰(Discussed the transform domain communication system is identical to sending and receiving end system performance, including the AWGN channel and the tone, multi-tone, narrowband, swept-frequency interference)

(1)设计一个数字低通滤波器．设计指标如下： 通带内幅度衰减人大于1dB 阻带内幅度衰减大于15dB (2)编制计算设计的数字滤波器幅度特性与相位特性程序，并进行实验验证； (3)编制实现该数字滤波器程序并且模拟实现数字滤波 ①分别让满足所设计滤波器的通带、过滤带、阻带频率特性的正弦波通过滤波器，验证滤波器性能。 ②改变正弦抽样时间，验证数字低通滤波器的模拟截止频率是抽样时间的函数。((1) Design a digital low-pass filter. Design specifications are as follows: pass-band attenuation range of people within a range greater than 1dB stopband attenuation greater than 15dB (2) the preparation of calculation and design of digital filter amplitude characteristics and phase characteristics of processes and experimental verification (3) the preparation of implementation of the digital filter program and simulate digital filtering ① were designed to meet the pass-band filter, filter belt, stop-band frequency characteristics of the sine wave through the filter, verify the filter performance. ② change the sine sampling time, verify that the number of analog low-pass filter cutoff frequency is the sampling function of time.)