Packet-Sniffer-Example1

matlab编写的OFDM通信系统仿真程序，可以作为OFDM学习资料。(OFDM systems simulation program Matlab written, can be used as the OFDM learning materials.)

说明：  以均匀圆阵为例，通过功率倒置算法，使特定方向上的天线增益最大，已达到波束成形，空域滤波的目的 参考文献《GNSS空域抗干扰算法研究及FPGA实现》(Research on Spatial Anti-jamming Algorithms of GNSS and FPGA Implementation)

HFSS 带通滤波器 微带结构 (HFSS microstrip structure band-pass filter)

In this paper, we present and analyze efficient frame synchronization and frequency offset compensation scheme with ternary sequences for an orthogonal frequency division multiplexing (OFDM) system in Rayleigh fading channels. Frame synchronization is an essential procedure for normal operation of the OFDM system because of sensitivity to synchronization errors. And when there are frequency offsets in OFDM frame, the loss of orthogonality occurs and the interference problem among several subcarriers is introduced. These fact leads to the requirement for joint implementation of the frame synchronization and frequency offset compensation.

数字信号处理中数字滤波器的matlab实现，包括iir和FIR两种数字滤波器(Digital signal processing matlab implementation of digital filters, including two digital filters and FIR iir)

在Matlab环境下用于计算CRC16的代码，本原多项式为X16+X15+X2+1，并提供测试文件。(In the Matlab environment for the calculation of CRC16 code, the primitive polynomial is X16+X15+X2+1, and provide the test file.)

通信系统仿真原理与无线应用MATLAB仿真的源代码，内部有许多实例，让读者轻松掌握matlab(MATLAB simulation of the simulation principles of communication systems and wireless applications source code, there are many instances within, allow readers to easily grasp the matlab)

随机方法构造的LDPC码，码长可变，无四环(random ldpc,code length can be changed)

说明：  4098QAM编码在AWGN信道下误码率性能与Eb/N0（信噪比）的关系(The performance of 4096QAM at AWGN channel: BER~Eb/N0)

UWB_Channel_IEEE_802_15_3a.rar是用MATLAB对UWB信道进行仿真的实例，所仿真的信道是UWB的标准信道模型。(UWB_Channel_IEEE_802_15_3a.rar is used for UWB channel MATLAB simulation examples, the channel simulation is the standard UWB channel model.)