OQAM_OFDM_IOTA

用VB编写的串口调试助手，附带51程序，大家可以学习，很经典，很地道(With VB serial debugging assistant, with 51 programs)

Two different types of measurement matrices: predefined and random measurement matrices were studied and tested using MATLAB. The speech signal was reconstructed without losing important information in order to achieve an increase in the data rates. After multiple simulations

说明：  实现了一个直接扩频系统，使用BPSK作为调制解调方法。并比较白噪声AWGN及瑞利衰落(rayleigh fading)环境下，误码率的影响。(There are two files in the zip folder. bpsk_spread.m and jakesmodel.m Steps for simulation: 1] Run jakesmodel.m first 2] Then run bpsk_spread.m . 3] Note that during the first run bpsk_spread.m has no rayleigh fading.This is because the corresponding code has been commented 4] The resulting performance is stored in BER_awgn. 5] Now uncomment the Rayleigh Fading code in bpsk_spread.m file. 6] Same time comment BER_awgn (line 112) and uncomment BER_ray variable. 7] Run the simulation. To compare the perfromances of the receiver using DSSS plot the BER_awgn and BER_ray >>semilogy([1:8],BER_awgn(1:8), g* ) hold on semilogy([1:8],BER_ray(1:8), -.b* ) hold on grid on )

16QAM数字基带信号系统仿真，包括发射机程序和接收端程序(16QAM digital baseband signal system simulation)

通信中利用匹配滤波，产生斜坡信号，并进行相应滤波(Communication using matched filtering, resulting in ramp, and the corresponding filter)

仿真分析了步进频率雷达信号的波形频谱和模糊函数(The waveform spectrum and ambiguity function of stepped frequency radar signal are simulated and analyzed.)

C# 串口例子，含有Modbus通讯，已经过测试，保证可用(C# serial port example, contain a Modbus communication, has been tested to ensure that available)

在瑞丽衰落 =信道下，对信号进行qPSK调制(qpsk for relaygh channel)

high performance communication networks presentation

MSK和GMSK的simulink仿真，眼图，功率谱(MSK and GMSK the Simulink simulation, eye diagram, power spectrum)