laser-simulations-master

DRM(Digital Radio Mondiale)系统采用OFDM调制方式， 引入了先进的信源信道编码和调制技术，使得AM波段的音频广播质量大大提高，在保持现有10kHz带宽时接近了FM广播的质量[5](DRM (Digital Radio Mondiale) system uses OFDM modulation, the introduction of advanced source-channel coding and modulation techniques, making AM-band audio broadcast quality greatly improved, while maintaining the existing 10kHz bandwidth close to the quality of FM broadcasting [5])

利用C++实现的一个即时通讯系统的客户端。传输层采用的是TCP协议。这是本科时候的毕业设计，最后评定为优，希望对一些朋友能有所帮助。(The use of C++ implementation of an instant messaging system client. Transport layer protocol used is TCP. This is the time of undergraduate graduation project, and finally classified as gifted, in the hope that some of my friends can be helpful.)

光通信中采用OFDM时，信号必须为非负实信号，因此通常采用DCO-OFDM或ACO-OFDM技术，此代码为ACO-OFDM(In VLC the signal has to be real and unipolar. Number of schemes in VLC are proposed in order to provide a real and unipolar signal like U-OFDM , Flip-OFDM , spectrally factorized pptical OFDM].)

这是一篇基于循环延迟分集的分组预编码和空时频编码技术方面的典型文章(This is a cyclic delay diversity based on the group pre-coding and space-time-frequency coding technology, a typical article)

说明：  matlab仿真凯塞窗的源代码，希望能帮到大家(simulation of Kaiser window,hoping to be helpfull for you)

该程序实现水声信道的模拟方法及性能分析，提出了一种信的水声信道模型(The program implements underwater acoustic channel simulation methods and performance analysis, presents a letter of underwater acoustic channel model)

彗星正则表达式类模块,肯定你喜欢,易语言()

说明：  读取SHT20的数据发送到主控STM32F103vet6(Read data from SHT20 and send it to master STM32F103vet6)

说明：  使用LS算法对OFDM的信道进行估计，该算法估计行道计算量小，但是容易受到噪声的影响。(The OFDM algorithm is used to estimate the channel of OFDM. The algorithm estimates that the calculation amount of the road is small, but is susceptible to noise.)

说明：  脉冲压缩的匹配滤波。目标距离分别为10米，30米和100米，对于未压缩的脉冲，三个回波信号混叠在一起，不能分辨，而经过脉冲压缩的脉冲信号则可通过匹配滤波收到3个回波信号(Matched filtering for pulse compression.Target distances are 10 metres, 30 metres and 100 metres, respectively. For uncompressed pulses,The three echo signals are overlapped and can not be distinguished. While pulse compression can distinguish three echo signals after matched filtering)