ofdm

Dymo routing protocol

SVN使用方法：如何同步代码，提交代码，更新代码，制作patch(SVN using tips:sync code,commit code,update code,make .patch file)

在实际的调谐解调电路中，采用的是非相干载波解调，本振信号与发射端的载波信号存在频率偏差和相位抖动，因而解调出来的模拟I、Q基带信号是带有载波误差的信号。这样的模拟基带信号即使采用定时准确的时钟进行取样判决，得到的数字信号也不是原来发射端的调制信号，误差的积累将导致抽样判决后的误码率增大，因此数字QPSK解调电路要对载波误差进行补偿，减少非相干载波解调带来的影响。(In the actual tuning and demodulating circuit, non-coherent carrier demodulation is adopted, and the frequency deviation and phase jitter of the local oscillator signal and the carrier signal of the transmitting end are present, and thus the demodulated analog I and Q baseband signals are signals with carrier error.)

viterbi卷积码编码,译码,调试通过,可以直接使用(Viterbi convolutional code coding, decoding, debugging pass, can be used directly)

注水算法，经典注水算法在MIMO自适应资源分配中功率分配的最优算法(water filling algorithm)

SSDA算法是一种快速图像匹配算法，希望对大家有所帮助！(SSDA algorithm is a fast image matching algorithm, we want to help!)

网络传输控制信号，网络芯片是W5100,传输信号可为控制信号与开关信号，modbus通信协议。(PLC TO W5100,the led and i/o can traver bay w5100,use msp430f5438 as cpu,modbus an 485 to the sevlers,pc use to controle.)

说明：  根据卫星EIRP值、接收系统G/T值等参数仿真了卫星通信的上下行及总链路预算的matlab程序 及论文《卫星传输链路的计算与应用》(uplink and downlink margin budget)

计算矩形栅格或三角栅格阵列天线栅瓣图，优化天线单元间距设计(caculate grating lobes of rectangular grid or triangular grid array)

应用MATLAB编程，LTE系统中上行链路SC-FDMA信号生成的程序(Application of MATLAB programming, LTE system uplink SC-FDMA signal generation process)