POW-0056-Rev0-LR

同步电机模型的MATLAB仿真,本文针对同步电机中具有代表性的凸极机，再使用MATLAB中用于仿真模拟系统的SIMULINK对系统的各个部分进行封装及连接，系统总体分为电源、abc/dq转换器、电机内部模拟、控制反馈四个主要部分，并为其设计了专用的模块，同时对其中的一系列参数进行了配置。(Synchronous motor model of the MATLAB simulation, this paper, synchronous motor has a salient-pole machine representation, and then use the MATLAB simulation system used for the system SIMULINK package and connect the various parts of the system in general is divided into power, abc/dq converters, motor internal simulation, feedback control of four main parts, and to design a dedicated module, while a series of parameters in which the configuration.)

在无线通信中使用跳频技术是军事通信中最主要的抗干扰手段之一, 而如果系统中能使用合适的中心频率可以快速跟踪跳频变化的带通滤波器将可以明显改善系统的抗干扰性能。文中从实际应用出发, 比较了几种可用于实现带通滤波器快速变频的方案, 选择了简单、实用的开关电容阵改变带通滤波器中心频率的方案(The use of frequency hopping in wireless communication technology is the most important anti-jamming in military communications, one of the means, and if the system can use the appropriate center frequency can be fast-tracked changes in frequency-hopping band-pass filter will be able to significantly improve the system anti-jamming性能. This paper from the actual application, the comparison of several band-pass filter can be used to achieve the rapid conversion of the program, choose a simple, practical switched capacitor array to change the center frequency of band-pass filter program)

介绍了经典的时频分布和检测理论的同时，作者利用时频分布的方法，将一 维时间信号转化到二维的时频空间中，通过提取图像的特征来判决信号和杂波， 采用的数据是使用McMaster IPIX雷达，在加拿大东海岸附近测得的。实测数据 研究表明此方法可以得到很好的检测结果。 (In this paper,we first review the time-frequency analysis and time -frequency-based detection methods.Secondly,by analyzing a mass of the measured data of sea clutter,we show the difference of time-frequency geometric features between echoes with a target and pure sea clutter.Finally,we given the detection algorithm based on the time-frequency geometric features.The results of the measured data show that the proposed method can effectively find low-velocity small targets in sea clutter.This approach is a novel try to detect small targets in sea clutter.)

说明：  Manual introducing to programing c (spanish)

一个BBS专家推荐系统的设计文档,BBS上PHP网站,实现的使用。asp . net实现了. . PHP网站和MYsql数据库。 net是用sql2005 (A BBS experts recommend system design documents, BBS is PHP website, realize is to use. Asp.net realized.. PHP website with MYsql database,. Asp.net is to use sql2005 )

开发板原理图 自己可以设计开发板为什么一定要买呢(Development board schematic can design their own development board why they must buy it)

折实计算机专业的课程设计报告，很完整很详细的哦(Folding is a computer professional curriculum design report, complete a very detailed Oh)

本文介绍了一种采用Altera 公司的FFT MegaCore 实现快速傅里叶变换的方法，该方法非常简单，能进一层次简化开发的流程，缩短工程开发周期，节约成本，因此在实际工程中是一种很好的应用。(This paper describes a use of Altera s FFT MegaCore fast Fourier transform method, the method is very simple and can develop into a hierarchy to simplify processes, shorten the project development cycle, cost savings, and therefore is a practical engineering good application.)

channel trucking verses frequency hopping uplink

数字太阳能逆变器方案，全套设计资料。含祥细源码及硬件原理。(Digital solar inverter solutions, complete design information. Xiangxi containing source code and hardware schematics.)