scholarly journals Editorial for the Special Issue: “High-Precision GNSS: Methods, Open Problems and Geoscience Applications”

2020 ◽  
Vol 12 (10) ◽  
pp. 1602
Author(s):  
Xingxing Li ◽  
Jacek Paziewski ◽  
Mattia Crespi
Keyword(s):  
High Precision ◽  
Global Positioning System ◽  
Positioning System ◽  
Special Issue ◽  
Open Problems ◽  
The Past ◽  
Global Positioning

In the past two decades, the high-precision Global Positioning System (GPS) has significantly increased the range of geoscience applications and their precision [...]

Model of an alternative navigation system for high-precision weapons

2020 ◽  
pp. 154851292092195 ◽  
Author(s):  
Vitalii Savchenko ◽  
Volodymyr Tolubko ◽  
Liubov Berkman ◽  
Anatolii Syrotenko ◽  
Pavlo Shchypanskyi ◽  
...  
Keyword(s):  
High Precision ◽  
Global Positioning System ◽  
Navigation System ◽  
Autonomous Navigation ◽  
Least Squares Method ◽  
Positioning System ◽  
Navigation Systems ◽  
Navigation Support ◽  
Global Positioning ◽  
Global Navigation Systems

The article explores the problem of alternative navigation support for high-precision weapons that use guidance based on signals from global navigation systems. It proposes the use of an autonomous navigation system replacing satellite navigation in the case where major Global Positioning System-like systems are unavailable. It suggests the idea and the model of a moving navigation field that can move along the weapon trajectory. The model of accuracy for the pseudolite navigation system uses the least squares method as its basis. The study looks into the accuracy parameters of the moving navigation field. The results of the study show the advantages of a moving field when compared with a stationary navigation field in case of autonomous use. This research also shows the possibility of using an autonomous system for Special Forces, search and rescue operations, and robotic and unmanned aerial, ground, and sea-based vehicles.

Solving the Grid-to-Ground Problem when Using High Precision GNSS in Archaeological Mapping

2014 ◽  
Vol 2 (2) ◽  
pp. 138-143 ◽  
Author(s):  
William (Fred) Limp ◽  
Adam Barnes
Keyword(s):  
Real Time ◽  
High Precision ◽  
Global Positioning System ◽  
Navigation System ◽  
Survey Methods ◽  
Archaeological Sites ◽  
Positioning System ◽  
Global Satellite Navigation System ◽  
Satellite Navigation System ◽  
Global Positioning

AbstractIncreasingly, high-precision GPS/GNSS (global positioning system/global satellite navigation system) based real-time-kinematic methods are being used in the mapping of archaeological sites. However, when utilizing high-precision satellite-based methods for archaeological location purposes, there is a significant but usually unanticipated problem that must first be addressed if accurate measurements are to be made. Simply put, unless proper correction methods are used, horizontal distances between two locations determined by the GNSS method will differ from the measurements that are made by traditional survey methods. This difference between the two measurements is often referred to as the grid-to-ground problem. This article provides a process to address this problem.

scholarly journals State of the Art and Gap Analysis of Precision Agriculture

2019 ◽  
Vol 10 (3) ◽  
pp. 72-92 ◽  
Author(s):  
Vaibhav Bhatnagar ◽  
Ramesh C. Poonia ◽  
Surendra Sunda
Keyword(s):  
Global Positioning System ◽  
Precision Agriculture ◽  
Gap Analysis ◽  
State Of The Art ◽  
Rapid Development ◽  
Geographical Information ◽  
Theoretical Research ◽  
Positioning System ◽  
The Past ◽  
Global Positioning

Precision Agriculture (PA) is now becoming the base for rapid development of a nation. So many technologies are used in precision agriculture such as Global Positioning System (GPS), Artificial Intelligence (AI), Sensor Network and Geographical Information System (GIS). This manuscript per the authors will review all the factors that influence the precision agriculture. This article describes the major endeavors in the past of precision agriculture. The noble intention behind this literature review and analogy is to figure out the gap between theoretical research and actual needs of farmers. In order to find out the actual requirements manuscripts per the authors have conducted a questionnaire in Rajasthan State of India. This gap analysis would be helpful for researchers to design an effective and efficient decision support system for irrigation and fertilization can be designed for Indian farmers.

Assessment of observations using minimum norm quadratic unbiased estimation (minque)

CISM journal ◽  
1990 ◽  
Vol 44 (1) ◽  
pp. 39-46 ◽  
Author(s):  
Y.Q. Chen* ◽  
Adam Chrzanowski ◽  
M. Kavouras
Keyword(s):  
High Precision ◽  
Global Positioning System ◽  
Error Propagation ◽  
Unbiased Estimation ◽  
Positioning System ◽  
Minimum Norm ◽  
Covariance Component ◽  
Global Positioning ◽  
Component Estimation

Estimation of the variances and covariances of observations in geodetic and engineering surveys of high precision is of great importance for proper weighting of the observations in their subsequent processing and for better understanding of sources of errors and their modeling. The authors have adopted from modern statistics the Minimum Norm Quadratic Unbiased Estimation (MINQUE) method for the variance-covariance component estimation. The method has successfully been implemented in modeling the error propagation in geodetic leveling, in determination of error components and weighting of measurements with the Global Positioning System, and in an assessment of a triangulateration network observed with different EDM instruments.

Car-Following and Collision Constraint Models for Uninterrupted Traffic: Reexamination Using High-Precision Global Positioning System Data

2000 ◽  
Vol 1710 (1) ◽  
pp. 37-46 ◽  
Author(s):  
Sarosh Khan ◽  
Pawan Maini ◽  
Kittichai Thanasupsin
Keyword(s):  
High Precision ◽  
Global Positioning System ◽  
Critical Evaluation ◽  
Gps Data ◽  
Positioning System ◽  
Velocity Data ◽  
Car Following ◽  
Location Data ◽  
Global Positioning ◽  
System Data

In the last few decades several car-following models have been proposed and tested using mainly vehicle location data. The use of high-precision Global Positioning System (GPS) data to test several car-following and collision constraint models is reported, with a critical evaluation of these models and proposal of a modified collision constraint formulation. GPS receivers typically report time-stamped location or position fixes and velocity. For a pair of leading and following vehicles, location and velocity data were used to examine estimates of acceleration, velocity, and headway by Pipes’s; modified Pitt’s, or FRESIM; CARSIM; and INTELSIM car-following models. The important aspects of collecting accurate GPS data are also highlighted.

Aplikasi Pemosisi Lokal Berbasis Android Dengan Menggunakan GPS

INTI TALAFA ◽  
2018 ◽  
Vol 8 (2) ◽  
Author(s):  
Yaman Khaeruzzaman
Keyword(s):  
Global Positioning System ◽  
Positioning System ◽  
Database Server ◽  
Global Positioning

Seiring dengan pesatnya kemajuan teknologi saat ini, kebutuhan manusia menjadi lebih beragam, termasuk kebutuhan akan informasi. Tidak hanya media informasinya yang semakin beragam, jenis informasi yang dibutuhkan juga semakin beragam, salah satunya adalah kebutuhan informasi akan posisi kita terhadap lingkungan sekitar. Untuk memenuhi kebutuhan itu sebuah sistem pemosisi diciptakan. Sistem pemosisi yang banyak digunakan saat ini cenderung berfokus pada lingkup ruang yang besar (global) padahal, dalam lingkup ruang yang lebih kecil (lokal) sebuah sistem pemosisi juga diperlukan, seperti di ruang-ruang terbuka umum (taman atau kebun), ataupun dalam sebuah bangunan. Sistem pemosisi lokal yang ada saat ini sering kali membutuhkan infrastruktur yang mahal dalam pembangunannya. Aplikasi Pemosisi Lokal Berbasis Android dengan Menggunakan GPS ini adalah sebuah aplikasi yang dibangun untuk memenuhi kebutuhan pengguna akan informasi lokasi dan posisi mereka terhadap lingkungan di sekitarnya dalam lingkup ruang yang lebih kecil (lokal) dengan memanfaatkan perangkat GPS (Global Positioning System) yang telah tertanam dalam perangkat smartphone Android agar infrastruktur yang dibutuhkan lebih efisien. Dalam implementasinya, Aplikasi Pemosisi Lokal ini bertindak sebagai klien dengan dukungan sebuah Database Server yang berfungsi sebagai media penyimpanan data serta sumber referensi informasi yang dapat diakses melalui jaringan internet sehingga tercipta sebuah sistem yang terintegrasi secara global. Kata kunci: aplikasi, informasi, pemosisi, GPS.

Sign in / Sign up

Export Citation Format

Share Document