PVmodel

说明：  环路滤波器是通信信号调制解调中最重要的一个部分，环路滤波器设计的好坏将直接影响到接收机的性能指标，二阶锁频辅助三阶锁相环路滤波器可以稳定跟踪具有加加速度的信号源，是现代通信中非常实用的技术，本文中详细编写了单载波信号产生模块、信道噪声模块、数字正交下变频模块、鉴频鉴相模块、环路滤波器模块，并包含了完整的testbench模块，对于初学者非常有用。(Loop filter is the most important part of communication signal modulation and demodulation. The design of loop filter will directly affect the performance index of receiver. The second-order frequency locking assisted third-order phase-locked loop filter can stably track the signal source with acceleration speed, which is a very practical technology in modern communication. In this paper, the single carrier signal generation module and channel noise are written in detail Sound module, digital orthogonal down conversion module, frequency and phase detection module, loop filter module, and contains a complete testbench module, which is very useful for beginners.)

GeoPhysics at the University of Alberta 提供的一个基于Matlab的地震处理软件-GeoPhysics at the University of Alberta provided a Matlab-based seismic processing software

激光雷达避障小车程序 keil5开发，可实现避障功能，自动躲避障碍物(The development of Keil 5 program for obstacle avoidance car of lidar can realize obstacle avoidance function and avoid obstacles automatically.)

说明：  隐马尔科夫模型进行中文分词 模型训练 python HMM_train.py RenMinData.txt_utf8 RenMinData.RenMinData_utf8 为人民日报已经人工分词的预料。 生成三个文件 * prob_start.py 为模型的初始概率 * prob_trans.py 为模型状态转移概率 * prob_emit.py 为发射概率 测试模型效果 python HMM.py reference 维特比算法：(python HMM_train.py RenMinData.txt_utf8 RenMinData.RenMinData_utf8 prob_start.py prob_trans.py prob_semit.py)

中国114网搜索系统 版　　本： 文件大小：580 KB 软件语言：简体中文 授权方式：免费版 相关链接：程序演示 开 发 商： 运行环境：ASP源码-Chinese search system 114 network version : File Size : 580 KB software languages : English license : free version Related Links : The process demonstrated developers : Operating environment : ASP source

430学习书籍,好东西,希望大家下载-430 learning books, good things, I hope everyone downloads

这是一部伟大的书籍.这是英国着名物理学家霍金与美国物理学家姆罗迪诺(Mlodinow)联合撰写的书籍。在书中，霍金否认了宇宙是上帝创造的自我言论.给人以深思.(This is a great books. This is England with the physicist Stephen Hawking s American physicists Mlodinow LuoDiNuo (written) combined with books. In the book, hawking denied that the universe is god created self remarks. Give a person with thinking. )

前馈循环神经网络，用于处理语音识别,里面是matlab源代码，以及实例。学习神经网络算法很有帮助。(Feed forward recurrent neural network for speech recognition, which is the matlab source code, and an example. Learning neural network algorithms is very helpful.)

pw论坛的增强安全性程序，安全登陆问题。提问和回答的-pw Forum enhance security procedures, safety problems landing. Question and answer

LS dyna 二次开发所用的学习资料。Fortran 语言(the fortran used for user define in LS dyna)