64-bit-array-multiplier

QAM调制的误码率仿真代码，通俗易懂，简单实用。(The error rate simulation code of QAM modulation is easy to understand, simple and practical.)

本文件包含通信所有过程，从调制，扩频，发送到接收，经过解扩，解调等。其中信道可以随机产生时变的多径信道。()

改进papr，对于改进papr的程序给了完整的代码，具有参考价值(Improved papr, for improving the procedures papr)

SPMS deal 模块，SPMS deal 模——(SPMS deal 模块)

MIMO——OFDM系统实现,代码完整，适合练习使用(The implementation of MIMO and OFDM system)

用c语言写的ldpc码的最小和算法译码程序。(The codes are about ldpc decoding,using min-sum algorithm by c++.)

收集了华为五轮面试的经验，还有中兴通信的面试宝典，非常不错的资料 (Huawei five interviews to collect experience, and ZTE interview book, very good information)

说明：  用matlab进行语音信号的采集，处理，还原，仿真数字通信的过程。(Using MATLAB to collect, process, restore and simulate the process of digital communication.)

说明：  对输入信号进行量化，n为你想要的量化级数；可输出量化前后信噪比，量化后信号，和量化后的二进制序列(Quantize the input signal, n is the quantizing series you want; output the signal-to-noise ratio before and after quantizing, the quantized signal, and the quantized binary sequence)

使用cordic算法，基于verilog实现的atan功能，经过仿真验证，适宜工程使用。(ATAN,implemented with cordic.)