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ION Proceedings


1975 National Marine Navigation Meeting
"Loran-C"

14-15 October, 1975
Hunt Valley Inn - Hunt Valley, MD

TABLE OF CONTENTS


AN ADAPTIVE ALPHA BETA TRACKING ALGORITHM - Ron Hatch 1

ARCTIC ICE NAVIGATION AND TRACKING - D.D. Wasilew and John Vivian 6

OMEGA NAVIGATION SYSTEM STATUS AND FUTURE PLANS - CDR. Thomas P. Nolan, USCG and CDR. Neal F. Herbert, USCG 10

IMPACT OF LORAN-C DECISION ON OREGON MARINE INTERESTS - Daniel A. Panshin 14

LORAN-C IN THE EYES OF THE GERMAN HYDROGRAPHIC INSTITUTE (DHI) - Uwe Hammerschmidt 18

LORAN-C NAVIGATION CHARTS FOR THE COASTAL CONFLUENCE ZONE - LCDR. Walter B. Ferm, USCG 21

LORAN-C EXPANSION IN THE COASTAL CONFLUENCE ZONE - LCDR. Francis W. Mooney 24

PROGRESS REPORT ON THE GETTYSBURG WORKSHOP SIXTEEN MONTHS LATER - Capt. J.F. Culbertson, USCG 27

LORAN-C REPLACEMENT EQUIPMENT (LRE) - LCDR. G.R. Goodman and Lt. R.P. Oswitt 35

THE LORAN-C GROUND STATION - LCDR. Harold 1. Sherman, USCG and Vernon L. Johnson 41

CALCULATOR ASSISTED LORAN-C CONTROLLER FOR TIME DIFFERENCE ERROR CONTROL -
J.T. Doherty and D.A. Feldman

AUTOMATED LORAN-C CHAIN DEVELOPMENT UTILIZING A FLEXIBLE MINICOMPUTER
WITH REAL-TIME EXECUTIVE SOFTWARE - LCDR. S.P. Plusch and ET1 M.F. Dean, USCG 57

THE COAST GUARD TWO PULSE LORAN-C COMMUNICATIONS SYSTEM -
D.A. Feldman, M.A. Letts and R.J. Wenzel 60

OPTIMAL ELEMENT SITING FOR SHORT BASELINE SURFACE POSITIONING SYSTEMS - J.J. Fee 65

CALIBRATION OF REFERENCE TIME ERRORS IN DIRECT-RANGING LORAN-C NAVIGATION -
Bahar J. Uttam and Thorgeir Paisson 73

SIGNAL PROCESSING IN SPERRY LORAN-D - Barry Brenin 81

THE AN/BRN-5 LORAN RECEIVER - W.N. Dean and D.P. Roth 87

ANNEX A - ROSTER OF ATTENDEES 95

PREFACE

The National Marine Meeting of The Institute of Navigation was held at the Hunt Valley Inn, Hunt Valley, Md., with the participation of The Headquarters U.S. Coast Guard, 14-15 October, 1975.

The meeting was opened by Lloyd Perper, ION President, the morning of 14 October.

Session I on Ship Guidance and Control was chaired by Dr. Max Carpenter, MIT and GS

The luncheon speaker on 14 October was CDR. T.P. Nolan, USCG on the OMEGA System Status. His paper is Included in the proceedings.

Session II on Loran-C User Interest was chaired by CDR. David T. Haislip, USCG(Ret.).

Session III on Progress Report on the Gettysburg Loran-C Workshop was chaired by Capt. J.F. Culbertson, USCG, H.Q. Loran Coordinator.

A delightful banquet, preceded by a reception, was held on 14 October. RADM Robert I. Price, USCG, Chief of Marine Environmental Systems gave a most Interesting and Informative talk after dinner.

Session IV on 15 October was on Loran-C Ground Stations and was chaired by CDR. William B. Mohin, USCG H.Q.

Session V on Loran-C Signal Processing was chaired by Vernon Weihe, Consultant.

The Technical Chairman responsible for selection of papers and arranging the program was CDR. W.F. Roland, USCG.

Unfortunately, four papers were cancelled just before the meeting and do not appear in the Proceedings.