gps_time

WAVECOM GSM MODEM用户中文使用说明书(WAVECOM GSM MODEM User Manual Chinese)

对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)

说明：  手机GSM TI 平台 dma 驱动 源代码(Mobile phone GSM TI platform dma driver source code)

导师给的关于信道化msk通信系统仿真这个题目所需要的全部matlab程序.(Mentors to on Channelized MSK communication system simulation on the subject all the necessary procedures matlab.)

应用MATLAB编程，LTE系统中上行链路SC-FDMA信号生成的程序(Application of MATLAB programming, LTE system uplink SC-FDMA signal generation process)

说明：  在LabVIEW中Modbus应用编程实例(Modbus library usage)

说明：  OFDM信号功率谱和频谱的MATLAB实现(Realization of Power Spectrum and Spectrum of OFDM Signal by MATLAB)

modscan32是modbus/tcp以太网通讯调试工工具,如同串口调试助手一样的工具.， (modscan32 is modbus/tcp ethernet communication tools, debugging tools tools like serial debugging aides.)

希捷指令集，里边详细的介绍了希捷12代的指令等。(Seagate instruction set inside a detailed introduction of 12 generations of Seagate directives.)

说明：  通过C++语言实现了OFDM系统的仿真，包裹调制、子载波映射、循环前缀、频域时域映射，解调等等，代码简单易懂(The simulation of OFDM system is realized by C + +, including package modulation, subcarrier mapping, cyclic prefix, frequency domain time domain mapping, demodulation and so on. The code is simple and easy to understand)