 |
|
| Instructor |
Mr. Keith D. McDonald,
NavtechGPS |
Objectives |
• To provide an understanding of GPS concepts and operation in a concise manner, with moderate use of mathematical and engineering expressions.
• To offer an in-depth survey of GPS technology developments and applications.
• To provide specific information on GPS design, operation, performance characteristics, user equipment, current issues, applications and potential.
• To obtain an overview of GPS applications.
• To provide the background for understanding other NavtechGPS courses.
|
| Prerequisite |
Familiarity with engineering analysis and terms. Those without
such a background should still gain useful information. |
| Who Should Attend? |
• Engineers and technical professionals seeking conceptual explanations of GPS technology, operation, capabilities, applications and development trends.
• Professionals in navigation, positioning and related fields who are interested in the capabilities and operating principles of GPS and
DGPS.
• System analysts and specialists concerned with position data.
• Managers with appropriate technical background. |
| Course Schedule |
DAY 1
Mr. Keith
McDonald, NavtechGPS |
|
8:30 - GPS
System Description, Applications
and Status
Receivers
& boards: technology and services
GPS characteristics, capabilities
Nav technique; 4-satellite ranging
System segments, interdependence
GPS configuration; JPO, functions
9:45 -
GPS
Performance and Policy
Accuracy,
avail., integrity, SPS, PPS
DoD & DoT policy, Anti-Spoof (A-S), system status, applications
GPS Space Segment; How sats and
orbit data affect system op’s.
Orbital
parameters, Kepler’s laws; ephemeris data
Block I, II, IIA, IIR, IIR-M, IIF, III features
11:00 -
GPS
Constellation; Coverage and
Performance; How satellite geometry
affects rcvr performance
Dilution
of precision (DOP), visibility, analysis methods
GPS Operational Control Segment
(OCS); How OCS uploads
& monitors the GPS constellation
OCS
network, functions, operation,vulnerabilities
12:00 - Lunch
on your own
1:30 -
GPS
System Concept and
Operation
Position
determination techniques; pseudoranging
Signal structure, modulation, spectrum
Pseudorandom noise (PRN) codes, C/A, P(Y) codes
GPS data message, format, data transmitted by S/C
Correlation processing; signal acquisition; power levels, signal policy,
pseudoranging
Navigation solution; velocity solution
2:45 -
Error
Sources & Receiver Effects
Systematic
and random errors, tropospheric effects, dispersion
Ionospheric propagation effects
AFGD ionospheric model;2-frequency correction
Multipath, mitigation techniques; error budgets; SPS and PPS signals
4:00 - Introduction
to DGPS
Precision
relative measurements
Differential operation, common bias terms
GPS Receivers, Architectures and
Equipment
Receiver
config's; types & performance
Receiver block diagrams; carrier and code tracking loops
Carrier smoothing, aiding
Receiver sequence of operation
5:00 - Day One Ends
|
DAY 2
Mr. McDonald |
|
8:30 -
GPS Clocks,
Precise Time & Time
Interval Measurement
How GPS time is obtained and transferred
between users
GPS
clocks, atomic standards
Performance, measures, Allan variance
Time standards and time transfer techniques
Rcvr clocks; errors & capabilities
9:45 -
GPS
Navigation Data Message
How receivers obtain basic GPS
data
Data
requirements, message structure
TLM (telemetry) and HOW (handover) words
SV clock corrections, ephemeris, almanac, other messages
Ionosphere and UTC time correction models
11:00 -
GPS for
Precise Positioning
Obtaining cm
level accuracy
Survey,
geodesy, reference datums, conversion
Carrier phase measurements, cycle integer ambiguity
Interferometry; differencing of measurements
Accuracy, potential and limitations
12:00 - Lunch on your own
1:30 -
GPS
Performance Parameters, Applications
and Planning
Coverage,
availability, integrity, accuracy definitions
Application Areas
Issues in civil aviation
GPS and GNSS Planning
2:45 -
Space-Based
Augmentations
GEO’s,
LEO’s, MEO’s, plans
GLONASS: The
Russian Navsat System
System
concept, operation, signal structure, receivers
Spectrum use; rel. to GPS, issues
GLONASS/GPS operations
Galileo - The
European GNSS
Motivation,
objectives, performance, requirements
Architectures, system segments, status
Operation, schedule, economics
4:00 -
GPS
Modernization Perspective
GPS operation
modes, performance
Need for improvements; objectives; military/civil
Additional signals; carriers, codes
Accuracy improvements, power, availability,
integrity
Perf. improvements for 2004-2010+
Galileo relationship; institutional policy,
plans, projections
5:00 - Course Ends
|
| Materials
You Will Keep |
• A notebook containing copies of all
presentation materials used during the course
• A copy of the following text:
Introduction to GPS - The Global Positioning System 2nd Edition
by Ahmed El-Rabbany, Artech House Inc., 2006.
• NavtechGPS CD-ROM containing a variety of GNSS references. |
| Continuing
Education Units |
1.2
(12 hours) |
| Attendee Quotes |
"There
was a good balance between civil and military uses of GPS. The course
was well organized and covered a great deal of relevant information...
Also, the Navtech staff went well beyond what I expected in meeting my
needs as a customer. This was a first class operation at every level."
- Charles Zanotti, Organization withheld
"Very
good course. Very useful to have all information in one convenient source. Mr.
McDonald is a very knowledgeable individual and great presenter."
- Mike Sharp, Oklahoma Conservation Commission
“A superb presentation... Keith has an extensive knowledge of GPS, in all of its aspects and impacts. Very good speaker and excellent facilitator... I now have a much expanded understanding of the GPS system, in terms of the technical complexity, and... applications.”
- John J. Costello, Litton PRC
“This course not only provided me with new in-depth information but it has compiled the info that I knew into one ‘packet’. It’s a great course for a better understanding of GPS!”
- Akemi Ueki, Hewlett Packard, Japan
“I now understand nav operation, concerns and properties for use in automotive navigation
sytems. Very good orator.”
- Name withheld
“Mr. McDonald has demonstrated that he is a leader in this field, and can explain advanced technical details in simple terms.”
- Charles Barone, CS Draper Laboratory
“This course will help me have more GPS understanding when talking with my customers.”
- Rene Labrado, Magellan
“I’m assigned to the Air Force Special Program Office for Air Traffic Control. The information presented in this course will be invaluable for my work in determining the AF’s future use of GPS as a precision landing system. Very nice reference materials, too.”
- Name withheld
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