LDPC_OFDM-system

<应用WVD估计AM_FM信号的瞬时频率>,该文研究了应用WVD谱峰检测估计AM-FM信号的瞬时频率的方法及其性能。(< Application WVD estimate AM_FM signal instantaneous frequency> This paper studies the application of WVD peak AM-FM signal detection estimates the instantaneous frequency method and its performance.)

说明：  天线模型建立和分析的matlab程序，包含各种基本天线种类。(The matlab program of antenna model establishment and analysis includes various kinds of basic antennas.)

该程序给出了LDPC编译码程序的经典算法，即BP算法，性能比较好(The program gives the classic algorithm LDPC decoding procedures, namely BP algorithm, the performance is better)

主要讲解了航空信道模型的仿真实现和参数选择，给出了各信道场景下的接收信号星座图以及概率密度曲线。(Mainly on the aviation simulation channel model implementation and parameter selection are given scenarios each channel received signal constellation and the probability density curve.)

用C++写的LDPC的传输仿真程序,包括编码,BP译码以及判决()

说明：  产生正弦信号时域波形及频谱，并通过希尔伯特滤波器。其中希尔伯特滤波器有两种产生方式，一是使用MATLAB自带的FDAtool；二是程序编写。(The time-domain waveform and spectrum of sinusoidal signal are generated and passed through Hilbert filter. There are two ways to generate Hilbert filter, one is to use FDAtool in MATLAB, the other is to write programs.)

OFDM系统中ldpc编码的解调matlab源程序！(LDPC coded OFDM system demodulation matlab source!)

说明：  单频信号实现频率估计，经典算法MRIFE(frequency estimation)

说明：  大规模MIMO的波束成形，对于多入多出的波束域学习很有帮助(Massive-MIMO beamforming)

最为经典MIMO detector 算法说明书，可以了解这个MIMO检测过程(For most classic MIMO detector algorithm manual, can understand the MIMO detection process)