GPSfangzhen

对OFDM运用的QPSK的调制与解调，其中包括星座图，误码率的仿真(Use of OFDM QPSK modulation and demodulation, including constellation, BER simulation)

说明：  这是一个通信的Nakagami算法，理论值和仿真结果全都有，希望对大家有帮助。(This is a Nakagami algorithm for communication. Both theoretical and simulation results are available. I hope it will be helpful to you all.)

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)

说明：  OFDM多径信道的仿真和模拟,有效的仿真了多径信道(simulation of OFDM through multipath channel)

说明：  energy efficiency code for cognitive radio

改程序为应用M语言实现对FDMA系统的设计仿真，包括发送接收端以及用户端的仿真(The program is designed to simulate the FDMA system by using M language, including sending and receiving terminal and user side simulation.)

说明：  多子带自适应算法，能够有较好的鲁棒性以及稳态特性。(The multi-subband adaptive algorithm has better robustness and steady-state characteristics.)

产生16QAM信号，用平方根升余弦滤波器进行脉冲整形，平方根升余弦滤波器产生16-QAM波形波形，画出眼图(16QAM signal of pulse shaping by square root raised cosine filter, the square root raised cosine filter to generate 16-QAM waveform waveform, draw the eye)

OFDM系统仿真，适合初学者，程序简单易于理解(OFDM system simulation, suitable for beginners, the program is simple and easy to understand)

基于simulink的码分多址扩频通信系统的仿真平台(DSSS-CDMA simulink)