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User-Experience-Case-Study
互联网产品用户体验案例分析,帮助提高用户体验。(Internet product user experience case studies to help improve the user experience.)
- 2013-08-20 15:57:34下载
- 积分:1
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RNP
民航精密导航技术,对民航导航感兴趣的同学可以看一下(Civil Aviation precision navigation technology, can look at students interested in civil aviation navigation)
- 2013-04-12 14:38:10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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JTXHFANGZHEN
本文在分析城市交通信号控制研究现状和交叉口交通信号控制原理、评价方
法的基础上,设计了单交叉口交通信号两级模糊控制系统。分级模糊控制能有效
减少模糊规则数,易于提取模糊规则,适合于交通状况复杂的城市交叉口交通信
号控制。但它存在难以由人工合理定义全部模糊隶属度函数的问题。为此本文进
一步采用遗传算法对两级模糊控制器中模糊隶属度函数进行优化。本文提出的方
法具有分级模糊控制的优点,同时可以使模糊隶属度的选取更为合理,获得更好
的控制效果。对一个四相位单交叉口,利用MATLAB在不同的交通条件下进行
了仿真,并利用交通仿真软件PARAMICS进行了可视化仿真。仿真结果表明该
方法能有效降低通行车辆在交叉口的平均等待时间,明显优于传统控制方法(After analyzing the city-traffic developments,the grade crossings control theory
its method of evaluation,the paper designs a traffic signal two-stage fuzzy control
tem for single intersection.Two-stage fuzzy controller,which is easy to acquire
zy rules and can greatly decrease the number of fuzzy rules,is very suitable to
plex urban intersection control.But it still presents a difficulty for deciding all the
bership functions correctly only by human experience.Therefor,to solve this
blem,a technique using genetic algorithm to modify its fuzzy membership
ctions is proposed.This method not only possesses the advantages of hierarchical
zy control,but also can change its membership functions adaptively to an optimal
ing in different traffic situations as well,and in this way the currency power of the
an intersection is improved.For a single urban intersection with four-phase,
ulation of different traffic condition is processed by using MATLAB.Moreover,
ble simulation is proce)
- 2009-12-07 22:30:53下载
- 积分:1
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Locally-Laplace-Isometries
发表在 The MIT Talbot 2013 Workshop 的论文 (Locally Laplace Isometries and Fibonacci Primes. this paper shows that there exists a reversible, unique and separable elliptic, Brahmagupta arrow. In this setting, the ability to study positive scalars is essential. Recent interest in partially ultra-positive domains has centered on deriving Pythagoras{Wiles scalars.)
- 2013-09-26 18:56:17下载
- 积分:1
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How_To_Write_A_PhD_Thesis_WoeWolf_UNSW
article on how to write a thesis
- 2009-04-28 00:13:22下载
- 积分:1
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survey
这个对运动估计的一个综述性论文,IEEE论文,很权威,对于把握图像处理研究。很值得看看(In the motion estimation, a review paper, IEEE papers, very authoritative, for the capture image processing research. It is worth a look)
- 2013-07-31 15:34:32下载
- 积分:1
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SurveyOfImageSuper-resolutionInvestigation
来自万方数据库的付费论文,详细介绍了图像超分辨率算法研究(WanFangDATA paid from the paper, detailing the image super-resolution algorithm)
- 2009-10-16 14:59:49下载
- 积分:1
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Dadenkov_DA_Solodkiy_EM_SHachkov_AM_Modelirovanie
Async Motor Vector Control
- 2017-06-02 18:29:31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