Understanding GPS : principles and applications / Elliott D. Kaplan, Christopher J. Hegarty, editors. - 2nd ed. - Boston : Artech House, 2006. - xvii, 703 p. : ill., maps ; 27 cm. - Artech House mobile communications series. . Includes bibliographical references and index. ISBN: 1580538940 (alk. paper) RM476.06 Subjects--Topical Terms: Global positioning system.