BTBook-(1)

说明：  generate prbs pattern

说明：  用VHDL语言在CPLD/FPGA上实现浮点运算的方法(in VHDL CPLD/FPGA achieve floating-point computation methods)

说明：  研究d2d通信加中继节点来优化蜂窝小区边缘用户通信，并通过MATLAB仿真(The D2D communication and relay nodes are studied to optimize the edge user communication of cellular cell, and the simulation is carried out by MATLAB.)

基于MATLAB的瑞利分布仿真，对5条路径的瑞利信道进行了仿真(Rayleigh distribution based on MATLAB simulation, five-path Rayleigh channel simulation)

CONVERT A MATRIX TO LOWER TRIANGULAR MATRIX

此代码是关于BPSK-OFDM信号调制代码，简单编码叙述者整个调制过程，可直接运行出结果(BPSK-OFDM signal modulation code)

si4432射频芯片的中文开发资料，寄存器配置等(the si4432 radio frequency chip Chinese development information, register allocation)

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.)

64QAM解调文章，在符号同步方面，采用插 值滤波器的设计，在盲均衡方面，提出了改进算法--MMA+HCMA双模式算法，利用MMA算法对信号的实部和虚部都进行均衡的原理解决了CMA+HCMA算法盲相位的问题(64QAM demodulation article, the symbol synchronization, using the interpolation filter design, blind equalization, the proposed improved algorithm- MMA+ HCMA dual-mode algorithm, the use of MMA algorithm to signal the real and imaginary parts of the balanced CMA+ HCMA principle to solve the problem of algorithm-blind phase)

matlab code for maximal se master