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APFC
单相功率因数校正PFC的原理和方法，通过对Boost型滞环控制的DC-DC变换器采用Matlab进行仿真，获得了最后校正的功率因数结果，说明这种PFC方案的能获得良好的效果，适用于多种场合。(The principle and method of single-phase PFC are introduced. By simulating the Boost hysteresis-controlled DC-DC converter with MATLAB, the final corrected PFC results are obtained. It shows that this PFC scheme can achieve good results and is suitable for many occasions.)
- 2020-07-26 11:18:41下载
- 积分：1
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GPS全球定位接收机 原理与软件实现_12378929
本书从电子技术和通信系统的角度讲解gps接收机的设计开发原理，其内容集中在用户终端，即接收机的设计原理和软件实现上。全书分为两大部分，第一部分为理论篇，第二部分为实现篇。理论篇首先对导航的基本目的进行了阐述，并由一个浅显的二维导航系统对导航信号的特点进行了推导，随后阐述了gps信号格式，同时对于直接影响接收机性能的射频前端部分做了理论分析；实现篇主要对本书实现的软件gps接收机的系统实现和源代码进行了讲解，同时作为总结，将信号处理的结果和有意义的中间变量以图示的方式给出，可以使读者有一个感性的认识，同时提升学习兴趣。.
本书适合从事卫星导航接收机研发的技术人员和卫星通信接收机研究的研究人员，尤其是从事北斗系统研发的专业人员、cdma通信系统研发人员，以及通信电子类专业的高年级本科生和研究生阅读，既可作为教学培训的教材，也可作为相关专业工程技术人员的参考资料。(This book explains the design and development principle of the GPS receiver from the perspective of electronic technology and communication system. Its content focuses on the design principle and software implementation of the user terminal, that is, the receiver. The whole book is divided into two parts. The first part is the theoretical part and the second part is the realization part. Firstly, the basic purpose of navigation is expounded, and the characteristics of navigation signal are deduced by a simple two-dimensional navigation system. Then, the format of GPS signal is expounded. At the same time, the front-end part of radio frequency which directly affects the performance of the receiver is theoretically analyzed.)
- 2019-05-05 08:54:24下载
- 积分：1
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Ionospheric error delay
根据卫星参数完成电离层误差延时和对流层误差延时模型的仿真，从而对码伪距测量数据进行校正，以提高卫星定位精度。(The ionospheric error delay and tropospheric error delay models are simulated according to satellite parameters, and the code pseudo-range measurement data are corrected to improve satellite positioning accuracy.)
- 2018-11-11 09:41:56下载
- 积分：1
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高精度捷联惯性导航系统Matlab工具箱
工具箱主要功能: 1） 姿态向量、四元数、矩阵、滤波算法等各类子程序 2） 圆锥运动仿真 划船运动仿真 惯性器件随机误差仿真 3） Kalman滤波初始对准 基于惯性系初始对准 罗经法初始对准 大方位失准角EKF初始对准 大失准角UKF初始对准 速度+姿态传递对准 4） 纯惯性导航SINS仿真 航位推算、SINS/DR仿真 SINS/GPS组合仿真 GPS/BD/GLONASS单点伪距定位 SINS/GPS松/紧组合 POS正逆向数据处理与信息融合仿真 5）((Toolbox main functions: 1) attitude vector, quaternion, matrix, filtering algorithms and other subroutines 2) conical motion simulation rowing simulation inertial device random error simulation 3) Kalman filtering based on initial alignment of inertial gyrocompass initial alignment law initial alignment of large azimuth misalignment angle EKF initial Alignment of large misalignment UKF initial alignment speed+ attitude transfer Alignment 4) pure SINS simulation inertial navigation dead reckoning, SINS/DR simulation SINS/GPS Integrated simulation of GPS/BD/GLONASS pseudoranges single point positioning SINS/GPS loose/tight combination of forward and reverse POS data processing and information fusion simulation 5)))
- 2020-11-27 20:29:30下载
- 积分：1
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DDSRF-PLL
本文论述了在控制的一个重要方面电网连接的电源转换器，即检测基波正序分量的电网电压不平衡和扭曲的条件下。明确地,提出了一种积极的基于一种新的序列检测器双同步坐标系的解耦锁相环（双dq–PLL），完全消除了检测误差传统的同步参考框架（SRF–锁相环PLL）。(This paper deals with an important aspect in the control of grid connected power converters, that is, detecting the fundamental positive sequence components of the grid under unbalanced and distorted voltage conditions. Clearly, a positive decoupling PLL a new sequence detector based on dual synchronous coordinate system (double DQ - PLL), the complete elimination of the traditional synchronous reference frame detection error (SRF - PLL PLL).)
- 2017-09-15 11:12:09下载
- 积分：1
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MATLAB命令大全
matlab 命令操作说明，命令提示符窗口中的快捷键及其使用说明 命令提示符窗口中的快捷键及其使用说明(matlab order operation)
- 2019-07-10 11:08:33下载
- 积分：1
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VB多线程
VB多线程中用C++的API产生崩溃，只能用ActiveX替代(Instate C++ API with ActiveX)
- 2020-06-15 22:50:02下载
- 积分：1
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e
说明： 包括跳频通信系统的整个工作流程，调制，跳频，解跳，解调。
忽略同步相关的问题，包括跳频同步，帧同步，定时同步等。
其中，调制采用MSK调制方式，解调采用复差分解调方式。(Including the whole work flow of frequency hopping communication system, modulation, frequency hopping, de hopping, demodulation.
Ignore the synchronization related problems, including frequency hopping synchronization, frame synchronization, timing synchronization and so on.
Among them, MSK modulation is used for modulation and complex differential demodulation is used for demodulation.)
- 2020-11-17 20:39:15下载
- 积分：1
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cp
说明： mppt control of dfig control
- 2019-05-10 20:28:45下载
- 积分：1
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notebook
基于vc++写的记事本功能强大非常棒。功能全面统一。-notebook
- 2023-01-01 05:30:15下载
- 积分：1
