4lscma

5个HFSS 无源器件包括：八木天线；功分器；耦合器；滤波器；混合网络(5 HFSS passive devices including: Yagi antenna splitter coupler filter hybrid network)

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 )

wimax ofdm concept...hence ofdm can be implemented with mimo

频谱仪编程手册主要是基于安捷伦IO 套件应用平台 简单实用的仪器控制编程程序(9020 programming manual is mainly based on agilent IO suite application platform Simple and practical instrument control programming procedures)

说明：  以物体导航位置跟踪为例进行离散卡尔曼滤波实验(Experiment of discrete Kalman filter)

说明：  1、基带码型仿真 （1）通过仿真观察占空比为50%、 75%以及100%的单、 双极性归零码波形以及其功率谱，分析不同占空比对 仿真结果的影响。 （2） 通过仿真产生一随机消息码序列，将其分别转换为 AMI码和HDB3码，观察它们的波形及其功率谱密度。 2、数字带通调制系统仿真 设计一个采用2ASK（ OOK） 调制的数字通信系统： 产生二进制随机数据，并仿真其对应的2ASK调制波形， 分析其频谱。所产生的调制波形加入不同信噪比的白噪声， 选取合适的接收方案，画出系统误码率曲线，并与理论误 码率进行对比。(1.Baseband pattern simulation 2. Simulation of digital band-pass modulation system)

对跳频信号在干扰情况下的误码率进行防真，并以对数表示，一定要下(Interference of frequency hopping signals in case of error rate for anti-truth, and to the number that must be under)

信号分析仪 编程手册主要是基于安捷伦IO 套件应用平台 简单实用的仪器控制编程程序(Signal analyzer e5052a programming manual is mainly based on agilent IO suite application platform Simple and practical instrument control programming procedures)

图形界面实现MQTT通信协议的演示例子程序。(This is an MQTT GUI Demo application,to show how to progrrame with MQTT.)

各种典型滤波器的设计与仿真,包括矩形窗、巴特莱特窗、汉宁窗、汉明窗和布莱克曼窗。(Typical filter design and simulated, including the rectangular window, Bartlett window, Hanning window, Hamming window and Blackman window.)