scholarly journals A Comparative Analysis of the Response of GNSS Receivers under Vertical and Horizontal L1/E1 Chirp Jamming

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1446
Author(s):  
Polona Pavlovčič-Prešeren ◽  
Franc Dimc ◽  
Matej Bažec
Keyword(s):  
Comparative Analysis ◽  
Low Cost ◽  
Global Navigation Satellite Systems ◽  
Navigation Satellite ◽  
Mass Market ◽  
Satellite Systems ◽  
Sensitivity Range ◽  
Gnss Receivers ◽  
Triangular Area ◽  
Global Navigation Satellite

Jamming is becoming a serious threat to various users of global navigation satellite systems (GNSS). Therefore, live monitoring tests are required to estimate the sensitivity range of GNSS receivers under jamming. This study analyses the response of some mass-market and professional-grade receivers to intentional interferences based on different 3D jammer positions. First, the vertical jamming was investigated, followed by a horizontal experiment where the receivers were placed at three locations while the jammer was moving within a triangular area. The aim was to determine a fingerprint of the influence of the L1/E1 chirp jammer on receivers used in the research. The results show that low-cost receivers are much more susceptible to interference, while the latest generation of GNSS geodetic receivers are much more resilient. It is encouraging that positioning in the presence of jamming could be achieved on a larger scale, especially by using professional receivers. An attempt to position the jammer will be left for trials when a more frequency stable device is applied.

scholarly journals Low cost GNSS receivers in time synchronization systems

2018 ◽  
Vol 67 (1) ◽  
pp. 65-72
Author(s):  
Grzegorz Czopik ◽  
Tomasz Kraszewski
Keyword(s):  
Time Synchronization ◽  
Low Cost ◽  
Global Navigation Satellite Systems ◽  
Satellite Systems ◽  
Time Frequency ◽  
Delay Times ◽  
Gnss Receivers ◽  
Frequency Counter ◽  
The One ◽  
Global Navigation Satellite

The GNSS (GNSS — Global Navigation Satellite Systems) receivers can be utilized to obtain accurate time markers. The preliminary results of the cheap GNSS receivers’ tests are presented in the paper. The one receiver’s price (including antenna) does not exceed 30 $. The studies on the use of receivers in the time synchronization systems were executed. Three identical models of receiver modules were used. The 1PPS (1PPS — 1 Pulse Per Second) signals available on the receiver’s output were used. The 1PPS’s main time characteristics were described. Delay times between different receivers 1PPS signals were measured. Measurements were taken using 1 GHz oscilloscope and precise time/frequency counter T3200U. Keywords: time synchronization, 1PPS, GNSS, GPS time

GNSS Guidance for All Phases of Flight: Practical Results

2001 ◽  
Vol 54 (1) ◽  
pp. 1-13
Author(s):  
S. J. Leighton ◽  
A. E. McGregor ◽  
D. Lowe ◽  
A. Wolfe ◽  
A. A. Macaulay
Keyword(s):  
Service Providers ◽  
Low Cost ◽  
Air Traffic ◽  
Global Navigation Satellite Systems ◽  
European Symposium ◽  
Navigation Satellite ◽  
Satellite Systems ◽  
The Third ◽  
Potential Benefits ◽  
Global Navigation Satellite

This, and the following three papers, were first presented at GNSS 2000, the Third European Symposium on Global Navigation Satellite Systems held in Edinburgh, Scotland from 1st to 4th May 2000.GNSS, or more specifically, Satellite Based Augmentation System (SBAS), guidance provides the prospect of a low-cost means for aircraft to become equipped to fly area navigation (RNAV) operations. The implementation of such RNAV operations within UK airspace offers potential benefits to both the airline operators and the Air Traffic Service Providers (ATSPs).

Comparative analysis of three ionospheric broadcast models for global navigation satellite systems

2017 ◽  
Vol 65 (2) ◽  
pp. 395-410 ◽  
Author(s):  
Shuhui Li ◽  
Lihua Li ◽  
Shuqing Wang ◽  
Junhuan Peng ◽  
Yujian Xu ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Global Navigation Satellite Systems ◽  
Navigation Satellite ◽  
Satellite Systems ◽  
Global Navigation ◽  
Global Navigation Satellite

The Seven Ways to Find Heading

2016 ◽  
Vol 69 (5) ◽  
pp. 955-970 ◽  
Author(s):  
Kenneth Gade
Keyword(s):  
Low Cost ◽  
Magnetic Compass ◽  
Global Navigation Satellite Systems ◽  
Navigation Satellite ◽  
Navigation Systems ◽  
Satellite Systems ◽  
Vehicle Motion ◽  
Heading Estimation ◽  
Global Navigation Satellite ◽  
The Given

A magnetic compass has too large a heading error for many applications, and it is often not obvious how to achieve an accurate heading, in particular for low-cost navigation systems. However, there are several different methods available for finding heading, and their feasibility depends on the given scenario. Some of the methods may seem very different, but they can all be related and categorised into a list by studying the vector that each method is using when achieving heading. A list of possible methods is very useful when ensuring that all relevant methods are being considered for a given application. For practical navigation, we have identified seven different vectors in use for heading estimation, and we define seven corresponding methods. The methods are magnetic and gyrocompass, two methods based on observations, multi-antenna Global Navigation Satellite Systems (GNSS), and two methods based on vehicle motion.

scholarly journals GNSS Receivers, Theirs Features, User Environment And Applications

2014 ◽  
Vol 21 (1) ◽  
pp. 49-58
Author(s):  
Jacek Januszewski
Keyword(s):  
World Market ◽  
Global Navigation Satellite Systems ◽  
Main Task ◽  
Navigation Satellite ◽  
Performance Parameters ◽  
Satellite Systems ◽  
The World ◽  
Gnss Receivers ◽  
Global Navigation Satellite ◽  
The Given

AbstractSince many years the coordinates of the position can be obtained with the use of satellite navigation and augmentation systems, SNS and SBAS, respectively. All these systems are called GNSS (Global Navigation Satellite Systems). The main task of the user segment is to transform the products delivered by the GNSS infrastructure into services that users are mainly interested in. That's why GNSS receiver selection depends on user application. Nowadays several hundred different receivers provided by more than one hundred manufacturers are available on the world market. The review of the performance parameters of GNSS receivers accessible in 2014 and last three years is presented in this paper. Additionally the paper gives the reply to some important questions as: for how many applications the given model is destined, which is the percentage of the receivers designed for marine and navigation users, which equipment features of the receiver are the most important for given application, which satellite signals apart from GPS signals can be tracked in the receiver?

An Evaluation of the Increase in the Quality and Quantity of Navigational Information Available from Low-Frequency Radio Navigation Systems

1999 ◽  
Vol 52 (3) ◽  
pp. 411-417
Author(s):  
Victor Filin
Keyword(s):  
Coastal Waters ◽  
Low Cost ◽  
Low Frequency ◽  
High Accuracy ◽  
Global Navigation Satellite Systems ◽  
Navigation Satellite ◽  
Navigation Systems ◽  
Satellite Systems ◽  
Radio Navigation ◽  
Global Navigation Satellite

Low frequency radio navigation systems continue to play an important role in the provision of precise navigation for vessels sailing in coastal waters, and in other zones requiring high accuracy. Modernization of the existing Loran C chains, and deployment of new ones, shows there is strong interest in these systems despite the appearance of global navigation satellite systems (GNSS) such as ‘Navstar’ and ‘Glonass’. This continuation of interest is connected to the relatively low cost of operation of the systems, the low cost of receiver-indicators and the need to provide users with very precise but reliable positioning information, which at present can only be obtained by joint use of GNSS and Loran C. To make the most of such an approach, Loran C should provide accuracy and reliability similar to GNSS.

Sign in / Sign up

Export Citation Format

Share Document