66430717

Raptor and Fountain Codes

改进的SLM算法，用于降低OFDM系统的峰值平均功率比(Improved algorithms for OFDM system to reduce the peak-to-average power ratio)

有关多普勒频移与距离的关系的matlab仿真(doppler shift)

AM调制与解调，信息信号和载波信号经过AM调制并加噪得到AM信号的频谱，再经过带通滤波器，相干解调，低通滤波后得到解调后的信号。(AM modulation and demodulation, information signal and carrier signal through AM modulation and noise to get the spectrum of AM signal, then through band-pass filter, coherent demodulation, low-pass filter to get the demodulated signal.)

美国海军开发的雷达传输损耗预测、计算软件AREPS的说明(The Space and Naval Warfare System Center, San Diego has a full spectrum research and development program with a long and proud history of rapidly responding to critical fleet requirements and deploying systems to address these requirements. One such system is the new Advanced Refractive Effects Prediction System (AREPS).)

MIMO指多输入多输出，MIMO技术大致可以分为两类：发射/接收分集和空间复用。传统的多天线被用来增加分集度从而克服信道衰落，具有相同信息的信号通过不同的路径被发送出去，在接收机端可以获得数据符号多个独立衰落的复制品，从而获得更高的接收可靠性。这种技术往往要结合多天线技术，而多天线技术在移动通信中得到了广泛的研究。(MIMO refers to Multiple Input Multiple Output, MIMO technology can be broadly classified into two categories: transmit/receive diversity and spatial multiplexing. Traditional multi-antenna was used to increase the degree of diversity to overcome channel fading, the signal with the same information through different paths have been sent in the receiver-side data symbols can be multiple independent copies of the decline, which was higher reception reliability. This technology often have to combine multi-antenna technology, and multi-antenna technology in mobile communication has been widely studied.)

说明：  一个基于python 的V2V仿真代码。(the code is about V2V communication simulation)

使用NMEA0183的gps服务程序原码(use of a GPS NMEA0183 service program source)

一种基于LFM和Barker码复合调制的雷达波形，理论上分析了该低截获雷达波形的组成。通过仿真得到复合调制信号的时域波形、频谱图和模糊函数图，与LFM信号和Barker码信号对比分析对复合调制雷达信号的距离和多普勒模糊函数、截获因子等进行了研究。(A radar waveform based on LFM and Barker code modulation is presented. The composition of the waveform is analyzed theoretically. The time domain waveform, spectrum and ambiguity function of the compound modulation signal are obtained by simulation. The range and Doppler ambiguity function and interception factor of the compound modulation radar signal are studied by comparing with LFM signal and Barker code signal.)

利用MATLAB来进行大气信道中的激光通信仿真，英文原版(Optical Wireless Communication Systems-system and chanel modelling with matlab)