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VSCF
变速恒频风力发电技术风力发电具有一些自身所拥有的特点,因此如何提高整个风力发电系统的效率、性能以及其输出电能质量,是当今风力发电研究的重点也是风力发电研究的发展方向。目前已有的风力发电技术主要有四类:定桨距调节技术、变桨距调节技术、主动失速调剂技术、变速恒频技术。因定桨距调节技术产生的时间比较早,并且现在的风力发电系统中不再使用因此不做详细介绍。(VSCF wind power generation technology)
- 2012-05-29 15:37:22下载
- 积分:1
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HJ-1AFVgusuanfangfa
基于HJ_1A高光谱数据的植被覆盖度估测方法研究(Vegetation coverage estimation method based on HJ_1A hyperspectral data)
- 2013-01-25 09:23:11下载
- 积分:1
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handover
用于无线通信系统越区切换理论的研究,高速铁路环境下越区切换的研究。(Handoff for wireless communication systems theory studies, a high-speed railway environment handoff.)
- 2013-03-07 16:23:40下载
- 积分:1
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Simulink_PD_radar
基于Simulink的脉冲多普勒雷达系统建模与仿真(Simulink based on the pulse Doppler radar system modeling and simulation)
- 2009-04-27 09:35:58下载
- 积分:1
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GDBSCAN
research paper on bdscan
- 2013-01-31 02:40:54下载
- 积分:1
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Phase-Migration
关于地震偏移方法中相移法的详细描述,对于初学者很有帮助。(Migration of seismic data by phase shift)
- 2014-05-03 11:01:19下载
- 积分:1
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(189021)
心电监护仪行业“十二五”规划分析与投资前景预测研究报告(189021).pdf(ECG industry " 12th Five-Year Plan and investment prospects forecast research report (189 021). Pdf)
- 2012-08-14 15:18:42下载
- 积分:1
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SerialBootSoC
Serial Flash for External Bootloader storage
- 2009-12-01 14:40:06下载
- 积分:1
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1
说明: 超紧耦合是 GPS/INS 组合导航系统的最新研究方向,它采用 INS 测得的载体动态信息辅助 GPS 接收机跟踪环
路,消除卫星信号中由于载体与卫星之间相对运动所产生的频率偏移,提高接收机在高动态环境下载波跟踪性能,同时还
可以压缩带宽,有效增强接收机抗干扰性能。介绍 GPS/INS 超紧耦合技术,给出 INS 辅助 GPS 载波跟踪环路结构图和相应
的数学模型,分析 INS 辅助 GPS 跟踪环路在动态环境下的动态残留及其对环路相位误差的影响,并进行了模型仿真,最后
对仿真结果进行了验证分析。仿真结果显示,辅助动态残留及其导致的环路相位误差的大小与加加速度、环路辅助时间间
隔成正比。
(The ultra-tightly coupled GPS/INS integrated navigation system latest research direction, it adopted the INS measured the carrier dynamic information auxiliary GPS receiver tracking loop to eliminate the satellite signal frequency due to the relative motion between the carrier and the satellite offset improve the receiver in high dynamic environment download wave tracking performance, but also can compress bandwidth, effectively enhance the anti-jamming performance of the receiver. Introduced GPS/INS ultra-tight coupling technology gives INS assisted GPS carrier tracking loop diagram and the corresponding mathematical model to analyze the impact of the INS assisted GPS tracking loop dynamic residues in a dynamic environment and the loop phase error, and model simulation, and analysis of simulation results verified. Simulation results show that the the residual secondary dynamic its resulting size of the error loop phase and jerk loop secondary is proportional to the time interval.)
- 2012-12-05 07:26:57下载
- 积分:1
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Poster_2
This is a research paper and a poster on occlusion detection....was part of an Msc thesis.
- 2009-07-03 01:19:17下载
- 积分:1