Text ( visual ) : unmediated Directed sonar sensing for mobile robot navigation / John J. Leonard, Hugh F. Durrant-Whyte. -- Boston : Kluwer Academic Publishers , c1992. -- xix, 183 p. : ill. ; 25 cm. -- (The Kluwer international series in engineering and computer science ; SECS 175 . Robotics : vision, manipulation and sensors). -- Revision of Leonard's thesis (D. Phil.)--University of Oxford, 1990 ; Includes bibliographical references (p. 169-179) and index. -- ISBN 0792392426 ; (BA18672986) ; https://ci.nii.ac.jp/ncid/BA18672986 Author Heading(s): Leonard, John J. ; Durrant-Whyte, Hugh F.. -- Classification(s): LCC : TJ211.35 ; DC20 : 629.8/92. -- Subject Heading(s): LCSH : Robots -- Control ; LCSH : Mobile robots