Phase_Modulation_and_Demodulation

A 2x2 multiple-input multiple-output (MIMO) architecture using dual-polarized antennas (DPAs) is considered with orthogonal frequency division multiplexing (OFDM). The performance of DPAs is evaluated for adaptive polarization (AP) transmission techniques in time-varying multipath channels impaired by polarization mode dispersion (PMD) and polarization-dependent loss (PDL). AP transmission techniques considered include power gain maximization, polarization dispersion minimization for interference avoidance, polarization multiplexing with waterfilling, and a suboptimal multiplexing strategy that enables direct recovery of the polarization multiplexed streams, thereby simplifying the design of the receiver. Measured time-varying dual-polarized channel realizations from mobile-to-mobile experiments are used to estimate the capacity, diversity, and interference avoidance performance of the adaptive approaches.

SeaSon from DB-LAB of HIT 介绍的方法是以在cygwin中安装gdb为例说明。(SeaSon from DB-LAB of HIT is based on the method described to install gdb on cygwin an example.)

nuclear energie in the industry

中国移动互联网短信网关接口部分协议SGIP12 0 2 参考Short Message Peer-to-Peer Proto()

说明：  线性相位 FIR 低通、高通、带通和带阻滤波器的设计方法，频率采样设计法的基本概念和线性相位的实现方法。几种线性相位的特点，熟悉和掌握矩形窗、三角形窗、汉宁窗、海明窗、布莱克曼窗、凯塞窗设计 IIR 数字滤波器的方法，频率抽样设计法的线性相位的设计方法，并对各种线性相位的频率抽样法的设计给出调整和改进。 利用 MATLAB 进行各类 FIR 数字滤波器的设计方法。(The design method of linear phase FIR low pass, high pass, band pass and band stop filter, the basic concept of frequency sampling design method and the realization method of linear phase. Familiar with and master the design methods of IIR digital filter of rectangle window, triangle window, Hanning window, Heming window, Blackman window and Kaiser window, and the design methods of linear phase of frequency sampling design method, and adjust and improve the design of frequency sampling method of various linear phases. Matlab is used to design all kinds of FIR digital filters.)

通过对系统能量的收集 使系统的能效达到最大(leakage_minimization_k_user)

vb编写的自动更新程序，可用来定期检查更新。(vb prepared by the automatic update program can be used to periodically check for updates)

船载自动识别系统(AIS)技术资料，我在项目开发过程中搜集的，做AIS相关开发必备！(Ship-borne Automatic Identification System (AIS) technical information, I am in the project development process to collect, and to do related to the development of AIS must!)

QPSK平台上的载波频偏经典估计算法实现，和估计出来之后进行补偿然后解调，统计误码率(QPSK frequency offset error data MSE SNR)

contains a document about antenna array fundamentals, equation for estimation of array parameters, antenna polar plots. etc