ofdm

说明：  OFDM channel estimation DFT single document, ultra-detailed, very helpful for understanding OFDM, but also helpful for understanding how to simulate channel estimation

说明：  factorialsss code in c++ and cyclic redundancy check is exceuted in c++

信号进入信道，经过高斯噪声的干扰，经过QPSK调制以后的时延 (The signal enters the channel, after the interference of the Gaussian noise after a delay after the QPSK modulation)

Analysis and Simulation Model of Physical Carrier Sensing in IEEE 802.11 Mesh Networks

thesis document used for ph.d degree

说明：  用于计算gps系统时间，gps周、周内秒,以及约化儒略日(Used to calculate GPS system time, GPS cycle, intra-week seconds, and Julian Day)

qpsk完整解调，包括载波同步，位同步采用迟早门，载波同步采用判决反馈(qpsk complete demodulation, including the carrier synchronization, bit synchronization using the door sooner or later, the use of decision feedback carrier synchronization)

QPSK开环载波同步技术研究 频偏估计算法(Open-loop carrier synchronization QPSK Research Frequency Offset Estimation Algorithm)

txt版 超级方便 可放到手机或mp4上阅读(txt version of super-convenient place to read cell phone or mp4)

说明：  基于matlab5g工具包，进行一定修改，使得信道估计和均衡效果更好(Based MatLab 5G Toolbox, make greater result)