在线咨询
eetop公众号 创芯大讲堂 创芯人才网
切换到宽版

EETOP 创芯网论坛 (原名:电子顶级开发网)

手机号码,快捷登录

手机号码,快捷登录

找回密码

  登录   注册  

快捷导航
搜帖子
查看: 90138|回复: 739

大家不用找了,GPS的资料这里全了,都看完就是高手!

[复制链接]
发表于 2008-7-16 19:05:57 | 显示全部楼层 |阅读模式

马上注册,结交更多好友,享用更多功能,让你轻松玩转社区。

您需要 登录 才可以下载或查看,没有账号?注册

x
本人在设计GPS时参考的资料,搜集了国内外n个网站才找到,现在集中贴到这里,能把这些看完就是高手!别的什么都不用看了,下面一本一本介绍。

Satellite Signal Acquisition, Tracking, and Data Demodulation.pdf

751.19 KB, 下载次数: 2085 , 下载积分: 资产 -2 信元, 下载支出 2 信元

经典的GPS理论教材,当然,侧重于基带部分的硬件设计,想读懂,基础得足够好

 楼主| 发表于 2008-7-16 19:10:56 | 显示全部楼层
Introduction to GPS: The Global Positioning System (Hardcover)
  • Hardcover: 196 pages
  • Publisher: Artech House Publishers; 1st edition (January 1, 2002)
  • Language: English
  • ISBN-10: 1580531830
  • ISBN-13: 978-1580531832
Book Description
This thoroughly revised edition of theArtech House bestseller, Introduction to GPS: The Global PositionSystem offers professionals and students an up-to-date,easy-to-understand treatment of this tremendously important technology.The second edition includes a wealth of brand new material, including achapter on GPS satellite orbit and new coverage of today’s hottestissues, such as precise point positioning and location based services.Without bogging readers down with advanced mathematics, the bookaddresses all aspects of the GPS, emphasizes GPS applications, examinesthe GPS signal structure, and covers the key types of measurement beingutilized in the field today. Practitionersget an in-depth discussion on the errors and biases that affect GPSmeasurements, along with advice on how to overcome them. Moreover, thebook shows how the GPS can be used for a number of different accuracylevels. Datums, coordinate systems, and map projections are discussedin a simple manner, offering a clear understanding of this widelymisunderstood area. This unique reference also examines the integrationof the GPS with other systems, and looks at future GPS modernization.Over 90 illustrations help clarify major topics throughout the book.

Artech.House.Introduction.to.GPS.eBook-TLFeBOOK.pdf

3.1 MB, 下载次数: 1447 , 下载积分: 资产 -2 信元, 下载支出 2 信元

 楼主| 发表于 2008-7-16 19:13:30 | 显示全部楼层
Global Positioning Systems, Inertial Navigation, and Integration (Hardcover)
  • Hardcover: 416 pages
  • Publisher: Wiley-Interscience; Book&Disk edition (December 29, 2000)
  • Language: English
  • ISBN-10: 047135032X
  • ISBN-13: 978-0471350323

The only comprehensive guide to Kalman filtering and its applications to real-world GPS/INS problems
   
Written by recognized authorities in the field, this book providesengineers, computer scientists, and others with a working familiaritywith the theory and contemporary applications of Global PositioningSystems (GPS), Inertial Navigational Systems, and Kalman filters.Throughout, the focus is on solving real-world problems, with anemphasis on the effective use of state-of-the-art integrationtechniques for those systems, especially the application of Kalmanfiltering. To that end, the authors explore the various subtleties,common failures, and inherent limitations of the theory as it appliesto real-world situations, and provide numerous detailed applicationexamples and practice problems, including GPS-aided INS, modeling ofgyros and accelerometers, and WAAS and LAAS.
   
Drawing upontheir many years of experience with GPS, INS, and the Kalman filter,the authors present numerous design and implementation techniques notfound in other professional references, including original techniquesfor:
    * Representing the problem in a mathematical model
    * Analyzing the performance of the GPS sensor as a function of model parameters
    * Implementing the mechanization equations in numerically stable algorithms
    * Assessing computation requirements
    * Testing the validity of results
    * Monitoring GPS, INS, and Kalman filter performance in operation
   
In order to enhance comprehension of the subjects covered, the authorshave included software in MATLAB, demonstrating the workings of theGPS, INS, and filter algorithms. In addition to showing the Kalmanfilter in action, the software also demonstrates various practicalaspects of finite word length arithmetic and the need for alternativealgorithms to preserve result accuracy.  An Instructor's Manualpresenting detailed solutions to all the problems in the book isavailable from the Wiley editorial department.

Global Positioning Systems-Inertial Navigation and Integration.pdf

4.44 MB, 下载次数: 2064 , 下载积分: 资产 -3 信元, 下载支出 3 信元

 楼主| 发表于 2008-7-16 19:15:51 | 显示全部楼层
abstract
Although originally developed for the military, the Global Po-
sitioning System (GPS) has proven invaluable for a multitude of
civilian applications. Each application demands specific perfor-
mance from the GPS receiver, and the associated requirements
often vary widely. This paper describes the architectures and
functions of civilian GPS receivers and then focuses on perfor-
mance considerations. The fundamental receiver measurements are
described and the quality of these measurements are related to the
aforementioned receiver architectures.

GPS Receiver Architectures and Measurements.pdf

284.33 KB, 下载次数: 1363 , 下载积分: 资产 -2 信元, 下载支出 2 信元

 楼主| 发表于 2008-7-16 19:17:56 | 显示全部楼层
GPS SPS Performance Standard
GPS SPS Signal Specification
GPS SPS Signal Specification Annex

GPS SPS Performance Standard.pdf

2.05 MB, 下载次数: 965 , 下载积分: 资产 -2 信元, 下载支出 2 信元

GPS SPS Signal Specification.pdf

1.01 MB, 下载次数: 866 , 下载积分: 资产 -2 信元, 下载支出 2 信元

GPS SPS Signal Specification Annex.pdf

1.09 MB, 下载次数: 795 , 下载积分: 资产 -2 信元, 下载支出 2 信元

 楼主| 发表于 2008-7-16 19:20:48 | 显示全部楼层
The Analysis on the Sensitivity of GPS Receiver
一篇GPS灵敏度的文章,目录如下:
1  GPS接收机的灵敏度定义
2  GPS接收模块的灵敏度性能分析
2.1  接收机前端电路性能对灵敏度的影响
2.2  基带算法性能对灵敏度的影响
2.3  高接收灵敏度的 GPS接收机设计
3  总结

GPS 接收机的灵敏度分析.pdf

159.17 KB, 下载次数: 913 , 下载积分: 资产 -2 信元, 下载支出 2 信元

 楼主| 发表于 2008-7-16 19:23:04 | 显示全部楼层
IF GPS Signal Simulator Development and Verification
关于GPS信号仿真和验证的一篇论文,摘要如下:
A software-based intermediate frequency (IF) GPS signal simulator for the L1 C/A code
signal is developed and verified in this thesis. The signal simulator is implemented in
MATLAB with some key functions coded  in C to accelerate speed of operation. A
mathematical signal model is developed that expresses the digitized IF GPS signal as a
function of various errors during propagation,  such as satellite clock error, ionosphere
error, and troposphere error; and user defined parameters, such as date and GPS time,
user trajectory, expected C/N0, noise density, intermediate frequency, sampling rate,
front-end bandwidth, and quantization bit. The  simulator is verified by comparing the
simulated signal with the hardware-collected IF GPS signal in the time,  frequency,
correlation and position domains.  

Partially for the simulator verification purpose, a software GPS receiver was developed
and verified, which was used to process the simulated signal to get the pseudorange and
carrier phase measurements. The signal acquisition and tracking techniques originally
studied and verified in this thesis were used for the first generation software receiver
developed by the PLAN group of the Department of Geomatics Engineering. The
receiver consists of the  following modules: signal acquisition, signal tracking, bit
synchronization, sub-frame synchronization and the navigation solution. It is verified by
using a set of real GPS signal measurements collected by a commercial hardware front-
end and comparing the tracking results and  navigation solution with the corresponding
results of a hardware GPS receiver.

IF GPS Signal Simulator Development and Verification.pdf

3.12 MB, 下载次数: 1067 , 下载积分: 资产 -2 信元, 下载支出 2 信元

 楼主| 发表于 2008-7-16 19:26:21 | 显示全部楼层
MOTOROLA INSTANT GPS DESIGN GUIDE
目录如下:
1.0 Overview
2.0 System Integration Outline
3.0 Product Specifications
4.0 Predicted Performance
5.0 Power consumption
6.0 Electrical Requirements
7.0 Mechanical Requirements
8.0 Reference Design
9.0 Factory Production Test concepts
10.0 WinOncore12 Overview

Instant GPS Design Guide.pdf

1.13 MB, 下载次数: 965 , 下载积分: 资产 -2 信元, 下载支出 2 信元

 楼主| 发表于 2008-7-16 19:34:51 | 显示全部楼层
Multicorrelator techniques for robust mitigation of threats to gps signal quality
Many applications that utilize the Global Positioning System (GPS) demand highly
accurate positioning information. Safety-critical applications such as aircraft navigation
require position solutions with not only high accuracy but also with high integrity. Two
significant threats to GPS signal quality exist which can make meeting both of these
requirements a difficult task.
Satellite signal anomalies, or “evil waveforms,” can result from soft failures of the signal
generating hardware onboard the GPS satellite. These subtle anomalies cause distortions of
the signal, which if undetected may pose an integrity risk to an aircraft relying on GPS.
Signal Quality Monitoring (SQM) is required to reliably detect these anomalies and thereby
protect airborne users from this integrity threat. Multipath, or undesired reflected signals
from the ground or other obstacles, also distorts the desired GPS signal. In addition to
making evil waveforms more difficult to detect, multipath—an ever-present error source—
also degrades nominal performance. Multipath mitigation techniques attempt to reduce or
eliminate this threat.
This thesis introduces novel signal processing techniques for addressing these twin
concerns. First, a comprehensive method for designing a robust signal quality monitor to
detect evil waveforms in the presence of multipath is described. This method is used to
specify a practical multiple-correlator configuration for the SQM receiver that satisfies the
requirements for Category I precision approaches for landing aircraft. Second, a new
ivv
multipath mitigation approach is introduced that leverages “multipath invariant” properties
of the GPS signals. A real-time Tracking Error Compensator (TrEC) algorithm is
experimentally shown to provide significant accuracy improvements over existing
techniques for low-end (or “narrowband”) receivers. Additionally, it is shown that TrEC
may have at least comparable multipath mitigation performance to that of a high-end (or
“wideband”) receiver technique.

Multicorrelator techniques for robust mitigation of threats to gps signal quality.pdf

4.78 MB, 下载次数: 1489 , 下载积分: 资产 -3 信元, 下载支出 3 信元

 楼主| 发表于 2008-7-16 19:35:59 | 显示全部楼层
Selected GPS Receiver Enhancements for Weak Signal Acquisition and Tracking
The sensitivity of a baseband signal processing unit, including both acquisition and
tracking, is critical for a GPS receiver to function in perturbed signal enviroments such as
indoors and under ionospheric scintillation.. To improve acquisition sensitivity, the dif-
ferential combining approach, which allows a 2.5 dB improvement in processing loss as
compared to noncoherent methods, is proposed herein. This results in a sensitivity im-
provement ranging from 1.2 dB to 1.6 dB for a given probability of false alarm and mi-
ssed detection.   
Based on an analysis of the Costas-family PLLs, carrier tracking is enhanced by optimiz-
ing loop configurations. The decision-directed loop , exhibits a 2  -dB sensitivity im-
provement as compared to other types of PLLs. Bandwidth and root deviation caused by
bilinear or boxcar transforms are solved by implementing a root-controled method. Using
this design makes the bandwidth of the digital loop close to desired values, and thus im-
proves carrier tracking by another 1 to 2 dB. A Kalman Filter adopts a soft-mode to deal
with the bit sign uncertainty and adjusts the bandwidth to minimize the mean square car-
rier tracking error. This leads to a 4 dB and 7 dB sensitivity improvement during weak
and strong amplitude ionospheric scintillations, respectively.

Selected GPS Receiver Enhancements for Weak Signal Acquisition and Tracking.pdf

1.36 MB, 下载次数: 1355 , 下载积分: 资产 -2 信元, 下载支出 2 信元

您需要登录后才可以回帖 登录 | 注册

本版积分规则

关闭

站长推荐 上一条 /2 下一条


小黑屋| 手机版| 关于我们| 联系我们| 在线咨询| 隐私声明| EETOP 创芯网
( 京ICP备:10050787号 京公网安备:11010502037710 )

GMT+8, 2024-12-1 08:22 , Processed in 0.025396 second(s), 7 queries , Gzip On, Redis On.

eetop公众号 创芯大讲堂 创芯人才网
快速回复 返回顶部 返回列表