decode_ldpc_matlab1

INDUSTRIAL CONTROL (A B.Sc. Course)

QPSK调制解调函数 MatlaB自编函数(QPSK modulation and demodulation functions)

说明：  用于iOS平台的 ping demo,对苹果原生代码的封装(use for iOS partform ping demo)

说明：  UR旋转矢量转化，转化为RPY坐标，更加适合编程，非常靠谱(UR Rotation Vector Conversion)

对语音编码技术的特点进行了分析与研究, 对波形编码,声码器和混合编码三种主要 的语音编码进行了比较, 并介绍了GSM 和CD(This paper analyzes and studies the characteristics of speech coding technology, compares the three main speech codes: waveform coding, vocoder and hybrid coding, and introduces GSM and CD.)

主要研究无线通信系统中，调制信号的载波同步问题，利用锁相环技术实现同步的matlab仿真(This paper mainly studies the carrier synchronization of modulated signal in wireless communication system, and realizes the MATLAB simulation of synchronization by using phase-locked loop technology.)

说明：  lms基础算法，已经经过测试，可以通过。(LMS basic algorithm has been tested and passed.)

脉冲压缩的匹配滤波。目标距离分别为10米，30米和100米，对于未压缩的脉冲，三个回波信号混叠在一起，不能分辨，而经过脉冲压缩的脉冲信号则可通过匹配滤波收到3个回波信号(Matched filtering for pulse compression.Target distances are 10 metres, 30 metres and 100 metres, respectively. For uncompressed pulses,The three echo signals are overlapped and can not be distinguished. While pulse compression can distinguish three echo signals after matched filtering)

说明：  polar 代码，使用matlab进行仿真，实现了polar代码基本功能，并提供polar基本原理说明(matlab polar simulation)

说明：  dco-ofdm接收机仿真，在matlab上仿真dco-ofdm的ser/Eb/N0曲线(The simulation of dco-ofdm receiver and the ser/Eb/N0 curve of dco-ofdm on MATLAB)