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[Industry research1

Description: 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.
Platform: | Size: 197632 | Author: LeeYJ | Hits:

[Industry research5

Description: 在GPS软件接收机和SINS辅助GPS跟踪技术的基础上,提出了一种SINS/GPS超紧致组合导航方案。该超紧致方案在GPS软件接收机的捕获环节中加入了基于相位估计的精细捕获算法,从而提高了频率捕获精度,省略了频率跟踪牵引过程 在信号跟踪环节中,利用SINS位置、速度信息与卫星参数,求取接收机与卫星之间的径向距离和径向距离率,为码环、载波环提供辅助,从而降低了载体动态变化对跟踪环的影响,提高了跟踪环的动态跟踪性能 同时,降低载波环噪声带宽,减小码环相关间隔,从而提高了载波环和码环的跟踪精度。-On the basis of the software GPS receiver and SINS assisted GPS tracking technology, ultra-compact combination of an SINS/GPS navigation scheme. The Super Compact program was added in the capture of the GPS receiver software link based the phase estimate Narrow capture algorithm, thereby improving the accuracy of frequency acquisition, frequency tracking traction process is omitted signal tracking link SINS position, speed information and satellite parameters, to strike a radial distance between the receiver and satellite and the radial distance rate, to provide auxiliary code loop, carrier loop and thereby reducing the influence of the carrier dynamic changes of the tracking loop, and to improve the dynamic tracking of the tracking loop performance while reducing the noise bandwidth of the carrier loop, to reduce the code ring associated interval, thereby improving the accuracy of the tracking of the carrier ring and the code ring.
Platform: | Size: 17408 | Author: LeeYJ | Hits:

[CSharpGPSTrackingDevice

Description: A GPS Tracking System . it is a better solution for tracking GPS
Platform: | Size: 6236160 | Author: Sharaf | Hits:

[Software EngineeringHigh-dynamic-GPS-receiver-

Description: 高动态GPS接收机载波跟踪算法研究与实现 里面有各种参数的设计与选择 这篇文章讲的比较详细-High dynamic GPS receiver carrier tracking algorithm to achieve The design and selection of various parameters of this article talking about a more detailed
Platform: | Size: 1438720 | Author: 余玉揆 | Hits:

[GPS developLLA2XYZ

Description: Convert Lat Lon Alt frame to xyz frame coordinates for GPS tracking
Platform: | Size: 2048 | Author: A | Hits:

[GPS developGPS

Description: 在有限的实验条件下,为验证高动态软件GPS接收机信号的捕获和跟踪模型,提出了一种基于软件GPS 接收平台的高动态GPS数字中频信号模拟方法。介绍了软件GPS接收平台的基本结构框架,并根据高动态环境 下伪随机码的多普勒效应及本地振荡器的频率误差对接收信号的影响,推导并建立了一种较精确的高动态GPS 数字中频信号模型。为使模型适用于更加复杂的环境,通过设置接收信号的噪声幅值来调整信噪比大小,以确 定所需的信号强度;在信号参数的设置过程中调整入射信号与反射信号的幅度比值及反射信号的时间延迟参 数,以模拟不同程度的多路径效应对中频信号的影响。仿真结果表明了该方法的有效性。-In order to validate the model for capturing and tracking the high dynamic signal of the software GPS receiver on limited experiment condition, a method for modeling the high dynamic numeric IF signal was presented based on the software GPS receiver platform. The basic frame of the software GPS receiver platform structure was introduced, and according to the impact of the Doppler effect of the pseudo-noise code and the frequency error of the local oscillator on the received signal in high dynamic environment, a more precise model of high dynamic GPS numeric IF signal was deduced and established. To make the model be applicable in more complicated environment, the required intensity of the signal was obtained by setting the noise’s magnitude of the received signal and adjusting the Signal-to-Noise ratio. In the process of setting the signal parameters, the ratio of the incident signal’s magnitude to the reflected one and the time delay of the reflected signal were adjust
Platform: | Size: 721920 | Author: luchan | Hits:

[GPS developGPS-research

Description: 本文以GPS中频数字信号的仿真为目标,以Matlab/Simulink为平台,对真实环境 下中频信号的生成算法!接收算法进行了研究和仿真实现"论文详细论述了GPS中频 数字信号的数学模型!导航信号的误差模型,和信号仿真时应注意的关键问题,给出了 中频信号软件模拟器结构"同时,论文对中频信号的接收算法也进行了简单的研究,并 用仿真生成的数字中频信号对软件接收机的捕获和跟踪性能进行了验证"实验结果表明 该系统基本实现了GPS中频信号的产生和接收功能,接收端能正确解扩解调,能在一 定精度下得到伪码初始相位和载波频率" -GPS IF digital signal simulation in Matlab/Simulink platform, the paper discusses in detail the mathematical model of the GPS IF digital signal received IF signal generation algorithm in a real environment! Algorithm research and simulation! Navigation error model of the signal, and the signal simulation should pay attention to the key issues, given the structure of the IF signal simulator software the same time, the paper also the IF signal reception algorithm simple, and digital IF signal generated by the simulation software The receiver acquisition and tracking performance is verified experimental results show that the system is the basic realization of the GPS IF signal generating and receiving functions, the receiving side can correctly despread demodulation, the initial phase and carrier frequency of the pseudo-code can be obtained under certain precision "
Platform: | Size: 5351424 | Author: luchan | Hits:

[GPS developGPS-Matlab-Simulation

Description: 本书讲述了全球定位系统GPS的基本原理和概念。具体包括GPS测量原理,GPS的结构和发展历史.GPS伪距定位和载波相位定位的原理GPS中使用的坐标系和时间系统,C/A码的实现原理及载波调制过程,GPS信号捕获和跟踪原理及实现.便携式GPS系统的设计与实现及常用芯片资料等。-This book describes the basic principles and concepts of the Global Positioning System (GPS). Including the structure and history of the development of the principle of GPS measurements, GPS the GPS pseudorange positioning and carrier phase positioning principle of GPS coordinate system and time system, the realization of the principle of the C/A code and carrier modulation process, GPS signal acquisition and tracking Design and Implementation of the principle and implementation of portable GPS systems and common chip data.
Platform: | Size: 4611072 | Author: 丁明亮 | Hits:

[GPS developGPS-Track

Description: GPS卫星信号的跟踪,基于锁频环滤波器 的-GPS satellite signal tracking
Platform: | Size: 688128 | Author: 李巴人 | Hits:

[GPS developGeneralized-Theory-of-Code-Tracking

Description: GPS的BOC信号发明人Betz关于码跟踪精度的奠基性理论分析文献-Generalized Theory of Code Tracking with an early-late discriminator by the GPS BOC signal inventor John Betz
Platform: | Size: 640000 | Author: zak | Hits:

[GPS developextended-theory-of-code-tracking

Description: GPS BOC信号发明人John Betz对码跟踪精度理论的进一步拓展,拓展至一般带限接收机早迟环理论-extended theory of early late code tracking for a bandlimited gps receiver
Platform: | Size: 833536 | Author: zak | Hits:

[Software Engineeringtracking

Description: MATLAB模拟搜索GPS卫星 MATLAB simulation search GPS satellites-MATLAB simulation search GPS satellites
Platform: | Size: 2048 | Author: mkk | Hits:

[J2MEgps

Description: gps enable phone tracking ssystem
Platform: | Size: 1024 | Author: fgbdgh | Hits:

[matlabStrong-tracking-filter

Description: 基于强跟踪滤波算法的惯性加GPS组合导航matlab仿真程序-Strong tracking filter algorithm based IMU+ GPS integrated navigation matlab simulation program
Platform: | Size: 83968 | Author: jxq | Hits:

[matlabGPS-capture-and-trace

Description: 基于MATLAB的GPS软件接收机捕获与跟踪算法实现.pdf 一篇讲解GPS接收机捕获跟踪的论文,讲解详细,有参考价值-MATLAB-based software GPS receiver acquisition and tracking algorithm. Pdf explain a GPS receiver acquisition and tracking of the paper, explain in detail, with reference value
Platform: | Size: 182272 | Author: sunnysnowhi | Hits:

[OtherGPS-target-tracking

Description: GPS目标轨迹跟踪,Mapx开发目标轨迹显示核心代码(VC++)-GPS target tracking,Mapx development target trajectory shows the core code (VC++)
Platform: | Size: 2048 | Author: 樱空释 | Hits:

[EditoroutdoorGPScode

Description: 3D GPS Tracking using Kalman
Platform: | Size: 3072 | Author: sabrartha | Hits:

[ARM-PowerPC-ColdFire-MIPSAccident-alert-vehicle-tracking-system

Description: accident alarting system using lpc2129 with gps
Platform: | Size: 188416 | Author: sathish/gajendran | Hits:

[GPS developGPS-vehicle-monitoring-system

Description: 可以有效监控车辆现在的位置以及曾经去过的地方,对于车辆以及车上物品的管理有着重要的意义. 广泛适用于各种企业以及事业单位的车辆管理.例如公安车辆调度,物流公司,汽车租赁,私家车的追踪管理等等。-Can effectively monitor the current position of the vehicle and where I have been, for goods vehicles and vehicle management has an important significance. Widely used in a variety of corporate and business unit management vehicles such as public security vehicle scheduling, logistics companies, car rental , private car tracking management.
Platform: | Size: 980992 | Author: 霍新伟 | Hits:

[GPS developGPS_signal_acq_track

Description: GPS信号捕获跟踪算法,GPS跟踪捕获可参考资料-GPS signal acquisition and tracking algorithms, GPS tracking can capture references
Platform: | Size: 3394560 | Author: 杨三 | Hits:
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