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设计低通滤波器的matlab源程序 IIR一阶低通滤波器,高通滤波器,Notch 嵌波滤波器(Design of matlab source code for low-pass filter IIR first-order low-pass filter high pass filter Notch filte)

One issue with underwater sensors is how to efficiently transfer large amounts of data collected by the node to an interrogating platform such as an underwater vehicle. It is often impractical to make a physical connection between the node and the vehicle which suggests an acoustic or optical wireless solution. For large amounts of data, the high bandwidth of underwater optical wireless is an advantage. A small, low-cost platform to demonstrate the potential of an optical wireless communications interface for underwater sensor nodes is demonstrated. To enhance the reliability and robustness of the optical wireless communication digital signal processing and error correction techniques are used. The system was tested in 3 and 7.7 meter tanks at 5 Mbps with the turbidity of the water controlled by the addition of Maalox.

用VC++6.0编写的USB通讯测试的程序，可以实现查找PC的USB外设，读取USB外设的设备描述符等功能。对USB通讯初学者有很大的帮助。(Written in VC++6.0 using USB communications test procedure, can be achieved to find PC' s USB peripherals, read the USB peripheral device descriptor functions. USB communication to the very helpful for beginners. )

两发一收和一发一收空时分组码误码率仿真对比图(Two rounds of a close and Pitch-empty, block codes BER simulation comparison chart)

无线传感器网络leach协议的matlab仿真程序(Wireless sensor networks matlab simulation program)

FLL、PLL、DLL的设计与比较,在扩频通信系统中这三种环路就是关键。(FLL, PLL, DLL design and comparison, in the spread spectrum communication system in these three loops is the key.)

关于OPNET比较权威的一本书，包括范例及实验(A book about OPnet simulation software, which includes the example of simulating large networks)

本程序利用交替优化的方法实现了8-PSK信号在多普勒频移条件下的相位和定时双参数同步，不仅程序注释清晰，而且附上该程序实验报告，力求便于读者理解。(By optimizing alternately, this program realizes two parameters synchronization of phase and timing for 8-psk signal under Doppler frequency shifting channel. For better understanding of readers, I not only note the program clearly, but also provide the experimental report in the rar.)

说明：  对2发1收的STBC-MIMO系统 （Alamouti空时码），分析2发射天线分别受到独立瑞利信道下的误码率性能曲线， 并与相同条件下单天线曲线进行对比分析(MIMO,SPACE TIME CODE)

matlab实现的fft程序，可酌情作为参考(Matlab implementation of the FFT program, as appropriate, as a reference)