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FrequencyHoppingTechnology
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)
- 2009-12-22 21:52:44下载
- 积分:1
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MMC_HVDC
论文:MMC_HVDC系统数学模型及其控制策略。还不错。(The papers: MMC_HVDC system mathematical model and its control strategy. Pretty good.)
- 2013-04-12 19:48:32下载
- 积分:1
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61EDA_B95
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)
- 2008-12-09 15:58:55下载
- 积分:1
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Exercise6_22
能够实现八皇后所有的解决方案,简单易懂。实为一个经典案例。(Able to achieve all eight queens solutions, easy to understand. Is indeed a classic case.)
- 2013-11-24 16:44:51下载
- 积分:1
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JTIDS-system-data-model
该文简要说明了JTIDS 的工作方式 , 从JTIDS 系统的数据模型入手 , 完成了包括RS编码 、 交织编码 、 软扩频 、 MSK 调制 、 跳频 、 跳时在内的整个JTIDS 系统仿真(This paper briefly describes the working mode of JTIDS, starting the JTIDS system data model, including the completion of the entire JTIDS system simulation RS encoding, interleaving encoding, soft spread spectrum, MSK modulation, frequency hopping, hopping, )
- 2017-04-14 23:08:54下载
- 积分:1
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A_DCT_based_embedded_image_coder
基于DCT的嵌入式图像编码,是DCT图像编码的经典文章,由EZW算法启发而发表的此文章。(DCT-based embedded image coding, DCT image coding is a classic article, inspired by the EZW algorithm published this article.)
- 2009-06-02 23:17:41下载
- 积分:1
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项目思路:仓库管理机器人系统开发
说明: 这是一篇关于仓库管理机器人系统开发的思路文档,属于简要概述(This paper describes a theory about developing warehouse robot system, which is a brief introduction.)
- 2020-06-17 07:00:02下载
- 积分:1
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MATI一AB仿真和实验结果表明了所定义和推广的电流检测方法的正确性和有效性。
FBD
为了更好地进行谐波和无功功率的补偿与控制,叶FBD(Fryze一Buchholz一DPenbrock)法的定
义进行了完善,并给出了补偿电流检测的直接法和间接法,在三相电力系统中对FBD间接法进行
了推广研究,利用参考电压进行投影变换,不仅可以检测出功率电流和零功率电流,还可以检测出
基波有功电流、基波无功电流、谐波电流以及任意次谐波电流等,大大拓展了FBD法的应用范围和领域。MATI一AB仿真和实验结果表明了所定义和推广的电流检测方法的正确性和有效性。
(In order to improve the performance of active power filter(APF) harmonic current detection method, a harmonic current detection based on FBD(Fryze-Buchholz-Dpenbrock) algorithm was proposed. Reference voltage was generated by phase locked loop(PLL), and load current was projected to reference voltage, and then the active power fundamental current, reactive power fundamental current, harmonic current, fundamental negative sequence current, any harmonic current and so on can be detected accurately by using low-pass filter(LPF), and in the case of distorted voltage, the method was also applicable. The simulation results verify the fast dynamic speed, high detection accuracy, simple implement and good project value of the proposed algorithm. MATLAB simulation results confirm the feasibility and validity of the method.)
- 2013-08-16 16:14:36下载
- 积分:1
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Three-phase-Voltage-Source
三相电压型逆变器的建模、设计,IEEE,讲解非常细致深入,非常有帮助!(Three-phase voltage source inverter modeling, design, IEEE, explaining in great detail in depth, very helpful!)
- 2013-06-13 19:42:38下载
- 积分:1
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考勤管理系统设计方案
这是一个考勤管理系统的设计方案.. 里面含:流程图,ER图,源代码. 欢迎大家来(This is an appraisal management system design .. inside containing : flowchart, ER map, the source code. Welcome everyone to see )
- 2020-06-26 08:40:01下载
- 积分:1