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DDCFPGA
针对DVB-T标准ETSI EN 300 744 V1.5.1,设计了可用于DVB-T接收整机的多速率DDC模块,并在FPGA中仿真实现.在复用数字振荡混频模块的基础上,根据输入信号的不同带宽(6M/8MHz)选择不同的抽取滤波器组完成抽取因子为3或4的多速率处理任务,利用两级半带滤波器(HBF)级联完成4倍抽取滤波,单级奈奎斯特滤波器完成3倍抽取滤波. (For the DVB-T standard ETSI EN 300 744 V1.5.1, designed for DVB-T receiver machine multi-rate DDC module, and the simulation in the FPGA implementation. Numerical oscillation in the complex mixer module, based on the input signals of different bandwidths (6M/8MHz) choose a different group of complete decimation filter extracted factor 3 or 4 of the multi-rate processing tasks, using two half-band filter (HBF) cascade to complete four times decimation filter, single-stage Chennai Nyquist filter to complete three times the decimation filtering.)
- 2009-09-13 22:24:41下载
- 积分：1
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DIANSAI
有关参加全国大学生电子设计竞赛培训的一些情况介绍(Some related to take part in the national undergraduate electronic design contest training was introduced
)
- 2013-08-11 11:49:44下载
- 积分：1
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How-to-Read-a-Paper
IEEE fellow 教你如何阅读科技论文(IEEE fellow teach you how to read scientific paper.)
- 2013-09-03 15:33:08下载
- 积分：1
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D_algorithm_2
组合电路测试中的D算法论文2，便于大家习D算法相关的内容!(Combination of circuit testing algorithm D thesis 2, easy to learn U.S. D algorithm relevant content!)
- 2009-04-05 16:20:53下载
- 积分：1
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080718-11
国外平衡车的程序，烧录文件，包含图纸和印刷电路图(Balanced car abroad program, burning documents, including drawings and printed circuit)
- 2013-04-07 11:17:27下载
- 积分：1
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wojieliuliangji
涡街流量计数字信号处理系统的改进与实验
本文针对涡街流量计数字信号处理系统存在的不能测量小流量和易受电磁干扰的问题,对其软硬件方面进行了
改进。重新设计和研制了电荷放大器,提高了灵敏度,增强了适配能力。采取了合理的接地和屏蔽措施,提高了系统的抗干
扰能力。采用去均值和频谱校正的方法,改善了系统的测量精度。编制键盘监控软件,采用状态变量法设计键值分析程序,
实现人机对话功能。进行了液体流量和气体流量的标定实验,结果表明,改进后的数字信号处理系统比常规的流量计信号处
理系统的测量精度高、流程比宽和适配能力强。(Vortex Flowmeter digital signal processing system improvements and experimental
In this paper, vortex flowmeter digital signal processing systems can not exist in measuring small flows and vulnerable to electromagnetic interference problems, its hardware and software aspects of the
Improvement. To re-design and development of the charge amplifier, increasing sensitivity and enhanced adaptive capacity. Adopted a reasonable grounding and shielding measures to improve the system s anti-stem
Interference capability. Used to mean and spectral correction methods to improve the system s measurement accuracy. The preparation of keyboard monitoring software, using state-variable method designed to key analytical procedures,
Functions to achieve human-machine dialogue. Were liquid flow and gas flow calibration experiments, the results show that the improved digital signal processing systems than the conventional flow meter signal at
Management System s high accuracy, process than the w)
- 2010-02-01 08:14:53下载
- 积分：1
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Kalman1960
卡尔曼1960年原著论文,英文原版,详细的理论推倒,具有较高的学术价值(Kalman 1960 original papers, the English original, detailed theoretical overturned, with high academic value)
- 2007-03-26 20:29:45下载
- 积分：1
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power-PMSG
Power flow control of PMSG
- 2015-08-12 17:10:25下载
- 积分：1
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tessendorf
osgocean的经典论文，讲了光照的折射反射，海浪频谱以及水下的光照问题等。(osgocean classic paper, about the reflection of light refraction, the wave spectrum and underwater lighting problems.)
- 2013-12-18 11:25:02下载
- 积分：1
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jsp_video_manage_system
实现多视道视频点播，流媒体播放功能。里含毕业论文。(Depending multi channel video on demand, streaming media playback. In containing thesis.)
- 2014-12-25 11:16:34下载
- 积分：1
