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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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EcosSmartv2x
智能插座的应用原理，新兴发展，发展前景，及其改进优缺点(The application of the principle of intelligent socket, new developments, development prospects, its improved advantages and disadvantages)
- 2021-04-18 10:18:57下载
- 积分：1
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dd-160128fc-2a.pdf.tar
OLED DISPLAY MODULE
I m using a 160x128 Graphic OLED Display from Densitron (DD-160128FC-2A) with the ATmega1281. The LCD is controlled via a SEPS525 OLED Driver IC. I use the LCD in 8bit parallel mode.
Both the LCD and controller datasheet is VERY vague and I struggle to get the LCD to respond.
The OLED controller is configured via 3 registers, IR (Index), WDR (Write Data Register) & RDR (Read Data Register).
It is the first time I come across this register INDEXING method and can t find any examples or discussions on the control sequence.
- 2009-07-21 13:43:58下载
- 积分：1
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H6-inveter
提出一种新颖的高效率六开关逆变器(H6)拓扑，解决了无变压器单相光伏并网逆变器漏电流问题。 仿真与实验验证了该拓扑具有低共模电压、高质量的并网波形和高效率特征(This paper proposed a novel, high efficiency, transformerless single phase photovoltaic grid-connected inverter with six active switches that alleviate leakage current
issue. This topology embeds two unidirectional freewheel units
into the midpoint of a full bridge inverter, which provide novel freewheel paths and separate battery cells a grid during freewheeling time. )
- 2020-10-27 09:59:59下载
- 积分：1
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1
说明： 经过二十余年的快速发展， 空间激光通信的研究重心逐渐从高精度ATP分系统向高速
率通信分系统转移 紧密跟踪空间激光通信的国际发展最新动态，从通信带宽和链路功率两个方面，
针对通信发射单元、接收单元和信道特性，分析了提高空间激光通信传输速率的技术难度与途径．分
别阐述了波长1 550 nm、基于EDFA 功放和前放技术，空间相干技术，光偏振复用技术．光波分复用
技术的基本原理、性能指标及关键技术，为高速率空间激光通信提供了技术参考(After more than 20 years the rapid development of space laser communications research center of gravity gradually transferred to the high-speed communication subsystem from the high-precision ATP subsystems closely track the latest developments of the international development of space laser communications, communication bandwidth and link power of two. communications transmitter unit, receiver unit and channel characteristics, technical difficulty and ways to improve the transfer rate of space laser communications. Described wavelength of 550 nm, based on EDFA amplifier and put technology, spatial coherence, optical polarization multiplexing. The basic principles of optical wavelength division multiplexing technology, performance indicators and key technologies, and provide a technical reference for high-rate space laser communications)
- 2012-05-31 16:41:40下载
- 积分：1
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Technical-Guide120
areva alstom relay type p120 tecnical documentation
- 2011-05-14 15:04:06下载
- 积分：1
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DOA-mode-space-smooth
基于模式空间的均匀圆阵方位估计性能研究，在建立了均匀圆阵数学模型的基础上，将模式空间与经典高分辨方位估计算法———多重信号分类法（MUSIC）
应用到均匀圆阵方位估计（DOA）中(Based on the pattern space DOA estimation with uniform circular arrays properties, in the establishment of a uniform circular array based on the mathematical model, the model space high resolution DOA estimation algorithm with the classic--- multiple signal classification (MUSIC) direction applied to the uniform circular array estimation (DOA) in)
- 2011-05-10 23:48:33下载
- 积分：1
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High
This paper presents a clustering approach
which estimates the specific subspace and the intrinsic dimension of each class. Our approach
adapts the Gaussian mixture model framework to high-dimensional data and estimates
the parameters which best fit the data. We obtain a robust clustering method called High-
Dimensional Data Clustering (HDDC). We apply HDDC to locate objects in natural images
in a probabilistic framework. Experiments on a recently proposed database demonstrate the
effectiveness of our clustering method for category localization.
- 2009-06-22 12:49:53下载
- 积分：1
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A-new-memetic-algorithm-approach-for-the-price-ba
memetic algorthium in the distributed generation enivorment
- 2013-09-01 00:47:10下载
- 积分：1
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00368415
The Condition Monitoring of Fluid-Filled Taped Cables Employed
in Underground Transmission Through Dissolved Gas Analysis
- 2013-10-15 13:41:19下载
- 积分：1
