1. G.S. Rao, Global Navigation Satellite Systems, Tata McGraw Hill Education Private limited, 2010, ISBN ((13):978-0-07-070029-1.
2. P. Sirish Kumar, V.B.S. Srilatha Indira Dutt, Navigation solutions for GPS receiver position estimation over the southern region of India, International Journal of Recent Technology and Engineering (IJRTE), ISSN: 2277-3878, Vol. 7(6), 2019.
3. David Rutledge, Accuracy versus precision: a Primer on GPS Truth, GPS World, 21(5), 2010, 42–49.
4. Correntropy: properties, and applications in non-Gaussian signal processing;Liu;IEEE Trans. Signal Process.,2007
5. Fixed point theory and applications;Agarwal,2001