AM

cclink -ie 通讯手册 ，需要的朋友可以看一看(cclink -ie Communication manual)

By building the generalized Sigmoid function relationship between normalized step-size and the power of error signal, a novel variable step-size NLMS algorithm is proposed. It is proved that the step-size of NPVSS-NLMS changes as the new algorithm does when A=σv -m and B=2. The physical meanings of the parameters in this algorithm are explored. The theoretical analysis illustrate that this algorithm combine the virtues of NPVSS-NLMS and Sigmoid function, and it leads to faster convergence rate and lower final misalignment. The computer simulation results support the theoretical analysis.

CMOS在信号接收端的应用，Gilbert混频器的实现(A LINEARIZATION TECHNIQUE FOR RADIO FREQUENCY CMOS GILBERT- TYPE MIXERS)

A good book for C++ for beginners

巴特沃斯滤波器C语言实现,低通滤波器,IIR(Butterworth filter C language implementation, low pass filter, IIR)

对FELICA在日本的应用情况进行了研究，并对Felica与手机结合的方式进行描述(FeliCa in Japan on the application of the study, and Felica and cell phone to describe the combination of)

3抽头迫零均衡器，5抽头迫零均衡器，以及恢复信号波形(3-tap zero forcing equalizer, the 5-tap zero forcing equalizer, and the restoration of the signal waveform)

说明：  平方根升余弦滤波器作为发送滤波器和匹配滤波器，使用python语言。(Make the square root rise cosine filter as a send filter and a match filter, using the python language.)

说明：  单频信号经过多径时变信道后，输出信号的包络随时间随机起伏，输出信号的频谱从冲激谱变成一个窄带频谱。径数位20，变化频率从0—2HZ随机均匀抽取。(Single-frequency signal through time-varying multipath channel, the output signal envelope random fluctuations over time, the output signal from the impulse of the spectrum into a narrow-band spectrum spectrum. Digital Drive 20, changes in frequency from 0-2HZ uniform random samples.)

基于matlab-GUI制作的数字通信信号的调制仿真，包括时域、功率谱显示，仿真的调制方式有：ASK、FSK、PSK、QPSK、OQPSK、1/4piQPSK、8PSK、MSK，比较直观易懂，可供需要的同胞参考(this process mainly simulate varity of digital signal modulation,such as ASK、FSK、PSK、QPSK、OQPSK、1/4piQPSK、8PSK、MSK)