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7:00 - 9:15, Monday, String 4
NEW! 
440A:
eLoran in the GNSS Era I

Register for this tutorial  ~  Back to main tutorials page

 

This course is for engineers and system integrators who require improved continuity and availability on navigation and timing applications. The course starts with an overview of eLoran and its error sources. Discusses integration with GNSS, and receiver architectures. Describes the Eurofix and 9th Pulse eLoran data broadcast systems. The course concludes with some results in Harbor Entrance Approach and timing tests.

Dr. Durk van Willigen
Reelektronika

e-Loran Overview
• Why eLoran when there is GNSS?
• Signal format and transmitter chain structure
• 'Eurofix' and '9th Pulse' eLoran data broadcast systems
• Standardization

 
Error Budget
• Transmitter power, and received eLoran and interference signal levels
• Far-field propagation, ionosphere, parameter errors in ASF and ionosphere models
• Near-field phase disturbances
• E-field and H-field receiver antennae
• Locally generated noise, including precipitation
  

GNSS versus eLoran
• Availability of signals at user antenna
• Accuracy of signals at user antenna

  

Level: A basic knowledge of radio navigation/communication and of signals is assumed.

8:30 - 12:00, Tuesday, String 4
NEW! 
440B: eLoran in the GNSS Era II

Register for this tutorial  ~  Back to main tutorials page

 

This tutorial begins Monday Evening. Please see 440A for tutorial description.

Dr. van Willigen

eLoran Pseudo-range measurements
• Carrier phase tracking
• Tracking loop bandwidth and noise
• Cycle identification
• Interference effects
eLoran position accuracy
• Raw eLoran
• ASF-table based eLoran
• Differential eLoran

 

eLoran Data Broadcast
• Eurofix
• 9th Pulse technique
• Messages for DGNSS, Timing, Differential eLoran, Alarms, etc.
eLoran-GNSS integration
• Integration versus selection
• eLoran calibration by GNSS

 

eLoran-GNSS practical results and some other aspects
• Harbor Entrance and Approach
• Aviation NPA and en-route
• Timing (UTC) and frequency precision
• Current and future receiver concepts
• Potential user groups
• International situation

 

Level:  Basic knowledge of radio navigation/communication and of signals is assumed.

 
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