The Development of Electronic Navigation Systems

1982 ◽  
Vol 35 (3) ◽  
pp. 482-490
Author(s):  
J. P. O'Sullivan
Keyword(s):  
Collision Avoidance ◽  
Global Positioning System ◽  
Main Chain ◽  
Artificial Satellite ◽  
Radar Data ◽  
Navigation Systems ◽  
Global Positioning ◽  
Satellite Navigation Systems ◽  
Radar Data Processing

This paper, which reviews briefly the development of modern maritime electronic navigation aids, was presented at a meeting of the Scottish Branch of the Institute held in Edinburgh on 7 October 1981.The electronic navigation systems dealt with in this paper are the principal position-fixing aids and the somewhat related computer radar data-processing equipment or Collision Avoidance Systems, inasmuch as these envelop a navigational task. The survey will thus embrace the principal hyperbolic aids – Decca Main Chain and Loran-C; the artificial satellite navigation systems – TRANSIT SATELLITE and NAVSTAR, the Global Positioning System; and the navigational role of collision avoidance systems.

The Use of Auxiliary Airborne Sensor Data in SPACE-M Photogrammetric Block Adjustments

1984 ◽  
Vol 38 (1) ◽  
pp. 3-14
Author(s):  
J. A. R. Blais ◽  
M. A. Chapman
Keyword(s):  
Global Positioning System ◽  
Mathematical Formulation ◽  
Real Data ◽  
Sensor Data ◽  
Navigation Systems ◽  
Test Results ◽  
Inertial Navigation Systems ◽  
Adjustment Program ◽  
Global Positioning ◽  
Topographical Mapping

The mathematical formulation used in the photogrammetric block adjustment program SPACE-M has recently been extended to accommodate auxiliary airborne sensor data corresponding to the position and/or attitude of the aerial camera at the time of film exposure. Examples of such systems are statoscopes, laser profilometers, Inertial Navigation Systems (INS) and the Global Positioning System (GPS). The description of the use of these auxiliary data in SPACE-M is outlined and references are given to other related formulations. Test results with simulated and limited real data are presented with some analysis of the implications for topographical mapping and other applications.

On Navigation Systems for Motorcycles: The Influence and Estimation of Roll Angle

2005 ◽  
Vol 58 (3) ◽  
pp. 375-388 ◽  
Author(s):  
Joshua P. Coaplen ◽  
Patrick Kessler ◽  
Oliver M. O'Reilly ◽  
Dan M. Stevens ◽  
J. Karl Hedrick
Keyword(s):  
Global Positioning System ◽  
Angular Rate ◽  
Roll Angle ◽  
Estimation Methods ◽  
Navigation Systems ◽  
Simulation Environment ◽  
Global Positioning ◽  
Heading Angle ◽  
Navigation Information ◽  
Navigation Scheme

Vehicle navigation systems use various sensors and the global positioning system (GPS) to locate a vehicle. This location is then matched to a map database to provide navigation information. Between GPS updates, the vehicle's heading angle and forward speed are used to “dead reckon” its position. Heading angle is often measured by integrating the output of a rate gyroscope. For this measurement to be equal to the vehicle's heading angle, the vehicle should not experience any rotation about its roll or pitch axes. For an automobile, the roll and pitch angles are small and may be neglected for the purposes of navigation. This article demonstrates that this same assumption is not true for a motorcycle. Through simulation, it is shown that for a motorcycle, obtaining a meaningful heading angle from a single angular rate measurement requires accounting for the motorcycle's roll angle. Methods to estimate roll angle and heading angle from available navigation measurements are presented, and two possible sensor configurations are compared. A motorcycle navigation scheme based on these roll angle estimation methods is shown to produce exceptional results in a simulation environment.

MACHINE AUTOMATION SYSTEMS FOR TOP ORIENTED TECHNOLOGIES

2020 ◽  
Vol 36 (2) ◽  
pp. 110-120
Author(s):  
D.N. Rasulov ◽  
◽  
R.V. Sobirov ◽  
Keyword(s):  
Global Positioning System ◽  
Navigation Systems ◽  
Agricultural Technologies ◽  
Software Products ◽  
Detection Systems ◽  
Automatic Location ◽  
Automation Systems ◽  
Global Positioning ◽  
Location Detection ◽  
Navigation Signals

For the implementation of top-oriented agricultural Technologies, machines are used whose control systems have devices for automatically determining their location. These devices are based on the use of GPS (global positioning system) systems with corresponding geo-information software products (GlS packages) and signals in network satellite radio navigation systems (CCPHC). With their automatic location detection systems, in principle, they can be based on the use of open-access navigation signals (HC) of any SSRNS or on the simultaneous use of signals from both systems. For most ous, the most common type of auxiliary energy is electric. Therefore, the next step in the design of automation systems will be the development of basic electrical circuits. Then, after selecting (ordering) the necessary hardware, they develop connection and connection schemes and design replacement devices.

The Design of INS under ITS Mechanical Properties for Vehicles in Mechanical Engineering

2013 ◽  
Vol 644 ◽  
pp. 119-122
Author(s):  
Ming Qiang Chen ◽  
Kai Jun Xu ◽  
Yu Qian
Keyword(s):  
Mechanical Properties ◽  
Global Positioning System ◽  
Mechanical Engineering ◽  
Inertial Navigation System ◽  
Intelligent Transportation System ◽  
Intelligent Transportation ◽  
Civil Aviation ◽  
Positioning System ◽  
Navigation Systems ◽  
Global Positioning

With the development of the civil aviation, the surface of airport becomes more and more crowed. The navigation systems of surface vehicles are of vital importance. The Global Positioning System (GPS) has been approved for a limited number of applications. Because it is not highly available for meeting safety-of life levels of integrity, which require timely alert if the system is unreliable for navigation under intelligent transportation system (ITS). This paper presents an analysis about the requirement and principle of an inertial navigation system (INS) and design an new mechanical architecture of INS in terms of increased availability of GPS for surface vehicles. This new mechanical architecture has a good mechanical properties in mechanical engineering.

GPS Navstar: A Review

1979 ◽  
Vol 32 (3) ◽  
pp. 341-351 ◽  
Author(s):  
S. S. D. Jones
Keyword(s):  
Global Positioning System ◽  
United States Of America ◽  
The United States ◽  
Successful Implementation ◽  
Navigation Systems ◽  
General Introduction ◽  
Global Positioning ◽  
Potential Impact ◽  
The Impact ◽  
Physical Principles

The Global Positioning System, Navstar, is an advanced satellite-based navigation system which is currently under development and evaluation in the United States of America. Progress has been very fully reported in the open literature and a definitive paper on the concept has in fact been published in this Journal. The concept has now been experimentally validated and much of the evidence which supports this validation has in turn been published.The impact of Navstar on navigation in the period beyond 1985 is potentially very great indeed in that it offers, worldwide, a navigation capability to surface and aerospace users of a standard of accuracy combined with continuous availability which is currently associated only with short-range aids.This paper has the objective of presenting (a) a general introduction to the physical principles on which Navstar is based, followed by (b) a survey of its potential relevance to the operational needs of various classes of user. Finally there is some more speculative matter in the form of (c) a discussion of the potential impact of successful implementation of Navstar on current and projected future navigation systems.

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