pts_suboptimal

博世ESP很好的学习材料，对进入ESP行业很有帮助。(helpful knowledge of Bosch ESP. Not available on website)

说明：  了解多模光纤传播模式,了解电场磁场分布，了解模式光斑(Understand the multimode fiber propagation mode, understand the electric field magnetic field distribution, and understand the pattern spot)

(1)建立DQPSK调制和解调 SIMULINK仿真模型，评估其在AWGN信道和瑞利衰落信道下的误码率性能（画出信噪比变化时的误码率曲线）； (2)基于（1）建立的SIMULINK仿真模型，分别在AWGN信道和瑞利衰落信道下发送一个实际音频文件，在接收端实时播放出来((1) the DQPSK modulation and demodulation SIMULINK simulation model is established to evaluate the bit error rate performance under the AWGN channel and the Rayleigh fading channel (the bit error rate curve when the signal to noise ratio changes). (2) based on the (1) established SIMULINK simulation model, a real audio file is sent under the AWGN channel and the Rayleigh fading channel respectively, and it is played on the receiving end in real time.)

turbo c 绘制船并裁剪，感觉不错，可以使用，你值得拥有(turbo c plotted ship and cutting, feeling good, you can use, you deserve)

Logika 25s controllers Modbus alarm codes documentation

通过c语言编程实现can通信中的数码管驱动问题。经过实验验证，该代码完全可行(C language programming through the digital communication can drive problems. Experimental results show that the code entirely feasible)

OFDM（正交频分复用）系统以其抗多径衰落和较高的频带利用率，得到了众多领域的广泛应用。本文就OFDM系统中关键技术之一的信道估计技术进行了介绍。并分别叙述了OFDM系统和信道估计的意义，归纳了信道估计的分类，最后介绍了MMSE、LS及其改进信道估计算法并仿真出结果。(OFDM（orthogonal frequency division multiplexing) has been widely used in many areas for its good resistance to multipath fading and high bandwidth efficiency.In this paper,channel estimation,which is one of the key technologies in OFDM systems,were introduced. Then we discuss the significance of the channel estimation and the classification of channel estimation.Finally,we study the algorithms of channel estimation such as MMSE,LS and LMMSE,and further get the simulation results. )

说明：  默认产生（0，1）的高斯随机数，参数可调(Gauss random number (0,1) is generated by default with adjustable parameters.)

51单片机主机和从机通过485测AD电压，有程序和仿真(51 single chip computer host and slave machine through 485 AD voltage, program and simulation)

卷积码和turbo的结合。。。。。。。。。。。。。。。。。。。。。。。。。。。。。(The combination of convolutional codes and turbo)