Schwarze-Sonne-RAT-1.0-by-Slayer616

运用相关分析法来进行系统辨识，采用的是M序列输入信号。(Carried out using correlation analysis, system identification, using the M sequence input signal.)

二维FDTD程序，在Yee元胞中，实现二维电磁波传播(2D FDTD program, Yee cell, two-dimensional electromagnetic wave propagation)

esprit 测向 direction of arrival (esprit direction finding DOA)

说明：  使用MATLAB来进行神经网络NN训练数据(Use MATLAB to neural networks NN training data)

正交频分复用(OFDM)技术是一种可以有效对抗符号间干扰(ISI)的高速数据传输技术。OFDM是一种特殊的多载波调制方式，它的基本思想是将高速传输的数据流通过串/并转换，变成在若干个正交的窄带子信道上并行传输的低速数据流。OFDM接收机有三个关键技术：信道估计技术，降低峰均比(PAPR)技术和同步技术。OFDM技术能有效的对抗多径衰落等，有着诸多的优点，但是OFDM有一个发展瓶颈，即OFDM信号的峰均功率比很大，很容易导致OFDM信号的交调失真和系统性能的下降。因而如何降低OFDM信号的峰均功率比一直是OFDM技术的一个研究热点问题。论文针对上述问题，重点研究了降低OFDM信号的峰均功率比的SLM与PTS算法，并利用Matlab对算法进行了仿真研究，并对仿真结果进行了分析。(Orthogonal frequency division multiplexing (OFDM) is a high-speed data transmission technology that can effectively combat inter-symbol interference (ISI). OFDM is a special multi-carrier modulation method, its basic idea is to high-speed transmission of data stream through the serial/parallel conversion, in a number of orthogonal narrowband sub-channel parallel transmission of low-speed data stream. OFDM receivers have three key technologies: channel estimation techniques, reduced peak-to-average ratio (PAPR) techniques and synchronization techniques. OFDM technology can effectively combat multipath fading, etc., there are many advantages, but OFDM has a bottleneck in development, that is, OFDM signal peak power ratio is large, it is easy to lead to OFDM signal intermodulation distortion and system performance degradation. Therefore, how to reduce the peak-to-average power ratio of OFDM signal has been a hot topic in OFDM technology. In this paper, the SLM and PTS algorithms for reduc)

不怕明确地告诉你，这个东西啊，可以很放方便地判别运动状态的稳定性(Stability Criteria)

This file is the programs of (chapter 9) of book (Modeling the Wireless Propagation Channel a Simulation Approach with MATLAB) which is related The Land Mobile Satellite Channel. It helps you to simulate The Land Mobile Satellite Channe.

matlab中的16APSK调制和软解调，软解调用于LDPC译码。(16APSK modulation and soft-demodulation in matlab. Soft-demodulation is used for LDPC decoding.)

说明：  利用LM算法训练的BP神经网络，在matlab上实现(The BP neural network trained by LM algorithm is realized on matlab)

潮流计算程序，通过IEEE30节点验证，程序可以正确运行。(Distribution power flow calculation. IEEE30 node validation)