LFM

OP25 project, complete receiver and repeater source code for APCO25 digital trunking radio system

说明：  一个简单的verlog HDL教程，内容比较详细，可读性较高。(A simple verlog HDL tutorial, more detailed content, high readability.)

西门子GPRS 调制解调器编程参考手册，型号TC35(Siemens GPRS modem programming reference manual, model TC35)

一篇北京邮电大学的博士论文。蜂窝网协作通信及相关技术研究 2010。关键词:协作通信，蜂窝网，多入多出，正交频分复用，频率复用系数，中继 (A Beijing University of Posts and Telecommunications doctoral thesis. Cellular communications and related technology research collaboration 2010. Keywords: cooperative communication, cellular network, multi-input, multiple output, orthogonal frequency division multiplexing, frequency reuse factor, relay)

协作通信中的基础仿真，含有pdf格式文章(cooperative communication Introduction and Simulation)

在AWGN信道的16QAM仿真程序，采用蒙特卡洛方法比较了16QAM理论和实际的误码率。(16QAM in AWGN channel simulation program using the Monte Carlo method is a theoretical and practical 16QAM BER.)

说明：  通信系统中的simulink仿真，不同信道的误码率性能以及数字通信中的自适应均衡，语音压缩技术中的线性预测编码，RLS干扰抑制等(Simulink simulation in communication system, bit error rate performance of different channels and adaptive equalization in digital communication, linear predictive coding in speech compression technology, RLS interference suppression, etc)

针对数字卫星常用的 7 种通信信号调制方式(QPSK、8PSK、16QAM、32QAM、64QAM、16APSK、32APSK)，对零中心归一化瞬时幅度谱密度最大值、四次方谱、幅度、高阶累积量四种特征参数进行了分析，提出了一种联合特征参数的信号调制识别方法．(Aiming at seven communication signal modulation modes commonly used in digital satellite (QPSK, 8PSK, 16QAM, 32QAM, 64QAM, 16APSK and 32APSK), four characteristic parameters of zero-center normalized instantaneous amplitude spectral density, quadratic spectrum, amplitude and high-order cumulant are analyzed, and a signal modulation recognition method of joint characteristic parameters is proposed. Method.)

在多周期CPU的基础上设计一个前导0检测程序。(A preamble 0 detection program is designed on the basis of multi period CPU.)

这是一款安卓软件，在之前上传的第一版的基础上，完善了家居控制功能，增加了聊天室、手机电脑实时记录、画板功能等。适用于安卓开发大作业，也可供大创参考(This is Smart Home version2.0)