GI3492 Total Station and GPS Surveying Syllabus:

GI3492 Total Station and GPS Surveying Syllabus – Anna University Regulation 2021

COURSE OBJECTIVE:

 To understand the working of Total Station and GPS and solve the surveying problems.

UNIT I FUNDAMENTALS OF TOTAL STATION AND ELECTROMAGNETIC WAVES

Methods of Measuring Distance, Basic Principles of Total Station, Historical Development, Classifications, applications and comparison with conventional surveying – Applications of Electromagnetic waves, Propagation properties, wave propagation at lower and higher frequencies – Refractive index (RI) – factors affecting RI -Computation of group for light and near infrared waves at standard and ambient conditions – Computation of RI for microwaves at ambient condition – Reference refractive index -Real-time application of first velocity correction. Measurement of atmospheric parameters – Mean refractive index – Second velocity correction -Total atmospheric correction – Use of temperature -pressure, transducers.

UNIT II ELECTRO-OPTICAL AND MICROWAVE

Electro – optical system: Measuring principle, Working principle, Sources of Error, Infrared and Laser Total Station instruments.
Microwave system: Measuring principle, working principle, Sources of Error, Microwave Total Station instruments. Comparison between Electro-optical and Microwave system. Care and maintenance of Total Station instruments.
COGO functions: Area, Inverse / MLM, REM, Resection, offsets and stakeout – Land survey applications.

UNIT III SATELLITE SYSTEM

Basic concepts of GPS – Historical perspective and development – applications -Geoid and Ellipsoid – satellite orbital motion – Keplerian motion – Kepler’s Law – Perturbing forces -Geodetic satellite – Doppler effect – Positioning concept – GNSS and IRNSS – SBAS: GAGAN and WAAS Different segments – space, control and user segments – satellite configuration – GPS signal structure – Orbit determination and representation – Anti Spoofing and Selective Availability -Task of control segment – GPS receivers.

UNIT IV GPS DATA PROCESSING

GPS observables – code and carrier phase observation – linear combination and derived observables – concept of parameter estimation – downloading the data – RINEX Format–Differential data processing – software modules – solutions of cycle slips, ambiguities – Multi path and other observational errors – satellite geometry and accuracy measures – Continuously Operating Reference System (CORS)– long base line processing – use of different processing software’s: Open Source, Scientific and Commercial.

UNIT V SURVEYING METHODS AND APPLICATIONS

Total Station: Traversing and Trilateration measurement and adjustment –Planimetric map and Contour map and Topography Mapping.
GNSS: Concepts of rapid, static, semi-Kinematic, pure Kinematic and RTK methods. Observation by Radiation, Lee frog and Trilateration measurement and processing -Topography mapping using PPK and RTK methods Total Station and GNSS applications

TOTAL:45 PERIODS
COURSE OUTCOMES:

On completion of the course, the student is expected to
CO1 Learn about the fundamental concept of Total station.
CO2 Provide knowledge about electromagnetic waves and its usage in Total station and GNSS.
CO3 Gain Knowledge on basic concepts of GNSS
CO4 Understand the measuring and working principle of electro optical and Microwave Total station and GPS
CO5 Gain knowledge about Total station and GNSS data processing and Mapping.

TEXTBOOKS:

1. Rueger, J.M. Electronic Distance Measurement, Springer-Verlag, Berlin, 4th Edition, 1996.
2. SatheeshGopi, rasathishkumar, N.madhu, ― Advanced Surveying , Total Station GPS and Remote Sensing ― Pearson education , 2nd Edition,2017. isbn: 978-81317 00679.
3. Gunter Seeber , Satellite Geodesy, Walter De Gruyter, Berlin, 2nd Edition, 2003

REFERENCES:

1. R.Subramanian, Surveying and Levelling, Oxford University Press, Second Edition, 2012.
2. Laurila, S.H. Electronic Surveying in Practice, John Wiley and Sons Inc, 1983
3. Guocheng Xu, GPS Theory, Algorithms and Applications, Springer – Verlag, Berlin, 3rdEdition, 2016.
4. Alfred Leick, GPS satellite surveying, John Wiley & Sons Inc., 4th Edition, 2015.