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车载设备写码说明 关于现在的CDMA改ENS码的资料~真的很有用的呀！你可以自己解决这个问题！(On-board equipment to write code on the current CDMA to ENS code data ~ really useful ah! You can solve this by yourself!)

带SPI接口的独立以太网接口控制器，支持全双工和半双工模式，高速SPI接口(Independent Ethernet interface controller with SPI interface, support for full-duplex and half-duplex mode, high-speed SPI interface)

DLMS电能表通信协议，国际通行标准 解释了在应用中可能出现的大多数情况(DLMS Power Meter Communication Protocol, the international accepted standard explanation of the application which might arise in most cases)

基于卷积编码的BPSK、OQPSK调制通信系统的仿真设计，较为简单(OQPSK Modulation Communication System Based on Convolutional Coding)

说明：  本源码实现遗传算法，用于RA准则下的多用户OFDM自适应资源分配(The source code implements genetic algorithm for multi-user OFDM adaptive resource allocation under RA criterion)

非规则LDPC码在AWGN信道下的性能仿真，码长1024，码率0.5，调制方式QPSK(simulation of LDPC codes in AWGN channel)

带通滤波器matlab源代码 菜鸟看看有用的(band pass filter Matlab source code as they see useful)

说明：  雷达发射宽带信号，线性调频信号模糊度函数(Radar transmitting wideband signal, ambiguity function of LFM signal)

航空航天通信技术一般采用模拟通信的频率调制和数字通信的移相键控调制方法。这有利于充分应用信道带宽和能源。频率调制是在一定程度上改变载波或副载波的频率来传输信息的调制方法。移相键控调制是利用载波或副载波的相位跳变来传输信息的调制方法。移相键控又分二相移相键控、四相移相键控和多相移相键控，其中以四相移相键控和八相移相键控调制方法的效率较高(Aerospace communications technology commonly used analog communication of frequency modulation and the digital communication phase shift keying modulation method. This is helpful for making full use of channel bandwidth and energy. Frequency modulation is changed to some extent carrier or subcarrier frequency to transmit information modulation method. Phase shift keying modulation is the use of carrier or subcarrier phase jump to transmit information modulation method. Phase shift keying and binary phase shift keying, four phase shift keying and multiple phase shift keying, of which four phase shift keying and eight phase shift keying modulation method of high efficiency )

利用MATLAB/simulink实现4FSK调制(Using matlab simulink for simulation modulation 4FSk)