Modelling of low-latitude ionosphere using modified planar fit method for GAGAN

IET Radar, Sonar and Navigation

Volumn 3, Issue 6, 2009, Pages 609-619

  Sarma, A D ^a   Venkata Ratnam, D ^a   Krishna Reddy, D ^b  

^a OSMANIA UNIVERSITY   (India)

^b CHAITANYA BHARATHI INSTITUTE OF TECHNOLOGY   (India)

Author keywords

[No Author keywords available]

Indexed keywords

ACCURATE ESTIMATION; DECORRELATIONS; IONOSPHERIC DELAYS; IONOSPHERIC EFFECTS; POSITIONAL ACCURACY; POSITIONAL ERRORS; SATELLITE-BASED AUGMENTATION SYSTEM; SEASONAL VARIABILITY; STANFORD UNIVERSITY; TOTAL ELECTRON CONTENT; WIDE AREA AUGMENTATION SYSTEMS;

GLOBAL POSITIONING SYSTEM; IONOSPHERE;

IONOSPHERIC MEASUREMENT;

EID: 70449469922     PISSN: 17518784     EISSN: None     Source Type: Journal    
DOI: 10.1049/iet-rsn.2009.0022     Document Type: Article

References (25)

1. Walter, T.C., Kee, C., and Chao, Y.C.: et al. ' Flight trails of wide area augmentation system (WAAS) ', Proc. ION, GPS-1994, Salt Lake City, UT, 1994, p. 1537-1546
2. Enge, P., Wlater, T., Pullen, S., and Kee, C.: ' Wide area augmentation of the global positioning system ', Proc. IEEE, 1996, 84, (8), p. 1063-1088 10.1109/5.533954 0018-9219
3. WAAS PAN Report (2006): 'National Satellite Test Bed (NSTB)', http://www.nstb.tc.faa.gov/REPORTS/waaspan17.pdf, accessed on April 17, 2008
4. Rife, J., Pullen, S., Enge, P., and Pervan, B.: ' Paired overabounding nonideal LAAS and WAAS error distributions ', IEEE Trans. Aerosp. Electron. Syst., 2006, 42, (4) 0018-9251
5. Rao, K.N.S., and Pal, S.: ' The Indian SBAS system ', India United States Conf. Space Science and Commerce, Bangalore, India, June, 2004
6. Sarma, A.D., Prasad, N., and Madhu, T.: ' Investigation of suitability of grid-based ionospheric models for GAGAN ', Electron. Lett., 2006, 42, (8), p. 478-479 10.1049/el:20063036 0013-5194
7. Walter, T., Hansen, A., and Blanch, J.: et al. ' Robust detection of ionosphere irregularities ', Proc. ION GPS 2000, 13th Int. Tech. Meet, UT, USA, September, 2000, p. 209-218
8. El-Arini, M.B., Conker, R.S., Albertson, T.W., Reagan, J.K., Klobuchar, J.A., and Doherty, P.H.: ' Comparison of real-time ionospheric algorithms for a GPS wide-area augmentation system (WAAS) ', J. Inst. Navig., 1994, 44, (4), p. 393-414 0020-3009
9. Conker, R.S., El-Arini, M.B., Albertson, T.W., Klobuchar, J.A., and Doherty, P.H.: ' Development and assessment of real-time algorithms to estimate the ionospheric error bounds for WAAS ', Navig. J., 1997, 44, (1), p. 77-87
10. Klobuchar, J.A.: ' Ionospheric time delay algorithm for single frequency GPS users ', IEEE Trans. Aerosp. Electron. Syst., 1987, 23, (3), p. 325-331 0018-9251
11. Blanch, J., Walter, T., and Enge, P.: ' Adapting Kriging to the WAAS MOPS ionospheric grid ', Proc. Nat. Tech. Meet. of the Institute of Navigation, Disneyland Paradise Pier Hotel, Anaheim, CA, USA, January, 2003, p. 848-853
12. Lejeune, R., and El-Arini, M.B.: ' An ionospheric grid algorithm for WAAS based on the minimum mean square error estimator ', Ionospheric Effect Symp. (IES), Alexandria, VA, USA, 1999
13. Sparks, L., Pi, X., and Mannucci, A.J.: et al. ' The WAAS ionospheric threat model ', Proc. Beacon Satellite Symp., Boston, MA, June, 2001
14. Walter, T., Rajagopal, S., Datta.-Barua, S., and Blanch, J.: ' Protecting against unsampled ionospheric threats ', Proc. Beacon Satellite Symp. (BSS2004), Trieste, October, 18-22, 2004
15. Ramalingam, K.: ' GAGAN status ', The Int. Civil Aviation Organization, GNSS PANEL, Working Group A&B Meeting, San Antonio, TX, USA, October, 16-25, 2002
16. Sarma, A.D., Sasi Bhushana Rao, G., and Venkata Rao, V.: ' Ionospheric reference station placement for INWAAS': a preliminary study ', J. Indian Geophys. Union, 2000, 4, p. 41-49
17. Kibe, S.V.: ' Indian plan for satellite based navigation systems for civil aviation ', Curr. Sci., 2003, 84, (11), p. 1405-1411 0011-3891
18. WAAS MOPS: 'Minimum operational performance standards for global positioning system/wide area augmentation system airborne equipment'. Document No: RTCA/D0-229D, prepared by SC-159, RTCA Inc., Washington, DC, June 8, 1998
19. Gao, Y., and Heroux Kouba, J.: ' Estimation of GPS receiver and satellite L1/L2 signal delay baises using data from CACS ', Proc. KIS-94, Canada, August, 1994
20. Menke, W.: ' Geophysical data analysis: discrete inverse theory ', (Acadamic, San Diego, CA, 1989)
21. Cormier, D., and Altshuler, E.: ' An improved ionospheric model for wide area augmentation system ', Radio Sci., 2004, 39, (RS1S19), DOI: 10.1029/2002RS002801 0048-6604
22. Sparks, L., Komajathy, A., and Mannucci, A.J.: ' Sudden ionospheric delay decorrelation and its impact on the wide area augmentation system (WAAS) ', Radio Sci., 2004, 39, (RS1S13), DOI: 10.1029/2002RS002845 0048-6604
23. Press, W.H.: ' Numerical recipes in the art of scientific computing ', 2nd (Cambridge University Press, New York, 1992)
24. Sarma, A.D., Ghouse Mohideen, S., and Krishna Reddy, D.: ' Modeling of Indian Ionosphere using planar fit method with adaptable decorrelation function for GAGAN ', Int. Union of Radio Science, XXVIIIth General Assembly, October, 23-29, 2005, New Delhi
25. Blanch, J., Walter, T., and Enge, P.: ' ionospheric threat model methodology for WAAS ', Institute of Navigation's Annual Meeting, Albuquerque, NM, June, 2001