first_experiment

将patran中的模型的bdf文件中的单元信息和节点信息保存成txt文档，在matlab中调用，直接输出为vabs的前处理文件(Save the unit information and node information in the BDF file of the Patran into TXT document, call it in MATLAB and output it directly to the pretreatment file of vabs.)

TOA算法，可以计算三维点的坐标，这个方法很好用哦(TOA algorithm, you can calculate the coordinates of 3D points, this method is very easy to use Oh)

仿真FH跳频通信系统的整个过程,同时可观察到工作原理及信号等(FH frequency hopping communication system simulation of the whole process can also be observed that the working principle and signal)

利用自己仿真产生的卫星数据，实现了GPS卫星信号的捕获和数据解调。可以确定GPS接收机捕获、跟踪等一些重要参数。希望对大家有所帮助。(Make use of its satellite data generated by simulation, to achieve a GPS satellite signal acquisition and data demodulation. GPS receiver can determine capture, tracking and other important parameters. Would like to help everyone.)

信息经格雷码映射，进行QPSK调制并通过AWGN信道发射，在接收端进行QPSK解调，并统计误符号率和误码率。(Information on the Gray code mapping, QPSK modulation and emission through the AWGN channel, QPSK demodulator at the receiving end, and the statistical symbol error rate and bit error rate.)

说明：  利用锁相环来实现MSK信号的定时同步，采用的是gardner算法(Using phase-locked loop to achieve timing synchronization of MSK signal, Gardner algorithm is adopted.)

matlab处理GPS数据的学习用代码。共5个部分附带说明书。包括第一部分GPS时间系统、第二部分Rinex文件读取、第三部分接收机的地心地固位置计算、第四部分基于伪距码的基线解算、第五部分双差解算(GPS data processing matlab learning with the code. A total of five parts with manual. GPS time system includes a first portion, a second portion Rinex file read, the third part of the ground EarthFixed receiver position calculation, the fourth part of the pseudo-code based on the baseline solution, the fifth part of the double difference solver)

说明：  求解广义非线性薛定谔方程的频移方程 与分步傅里叶法不同，解决了非线性系数随波长变化的问题(Solving the frequency shift equation of GNLSE)

单小区理想模式下分布式MIMO建模以及能量效率计算(Distributed MIMO and energy efficiency)

802.11n的信道仿真matlab代码，对于学习研究802系列信道模型有帮助(802.11n channel simulation matlab code, study and research for channel model 802 series help)