QAM

MODBUS是工业领域通信协议的业界标准。这是周立功MODBUS的源码，适合应用和学习，需要的朋友可以看看。(MODBUS communication protocol is the industry standard in the industry. This is Zhou Ligong MODBUS source code, suitable for application and study, need friends can look at.)

无线通信类的，适用于自适应调制算法，用户算法(AMC algorithm)

dab仿真程序，包括接收发送和AWGN的性能 (dab simulation procedures, including sending and receiving AWGN performance)

多径瑞利衰落信道的应用，QPSK信号通过该信道后分析信道冲激响应等(Multipath Rayleigh fading channel applications, QPSK signal through the channel after the channel impulse response analysis, etc.)

用51单片机完美地解决凝露现象。防止元件老化(The dew phenomenon can be perfectly solved by 51 single chip computer. Preventing component ageing)

研究生数字信号处理讲义，基于奥本海姆原著进行讲授的(Graduate Digital Signal Processing notes, based on the teaching of Oppenheim' s original)

说明：  ofdm 信道估计 16qam MMSE估计 对比了块状导频和梳状导频的区别(ofdm channel 16qam MMSE compare with block pilot and comb pilot)

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)

用于labview 串口通讯,非常有用，并且实测有用(useing for labview serial communicaton,it very useful)

说明：  conversion of a matrix into lower triangular matrix