The authors' replies to the discussion on “Rotating-loop radio transmitters, and their application to direction-finding and navigation”, “Some experiments on the applications of the rotating-beacon transmitter to marine navigation” and “A theoretical discussion of various possible aerial arrangements for rotating-beacon transmitters”

1928 ◽  
Vol 66 (375) ◽  
pp. 278-279
Author(s):  
T.H. Gill ◽  
N.F.S. Hecht ◽  
R.L. Smith-Rose ◽  
S.R. Chapman
Keyword(s):  
Direction Finding ◽  
Theoretical Discussion ◽  
Radio Transmitters ◽  
Marine Navigation

Inertial Navigation for the Merchant Marine

1970 ◽  
Vol 23 (2) ◽  
pp. 221-232
Author(s):  
D. A. Videlo ◽  
D. L. Wright
Keyword(s):  
Inertial Navigation ◽  
Dead Reckoning ◽  
Direction Finding ◽  
Integrated Systems ◽  
Merchant Marine ◽  
Gyro Compass ◽  
Marine Navigation ◽  
Inertial Systems

In this paper the history and development of inertial systems for the merchant marine is traced from the gyro-compass, familiar at sea since the beginning of the century, to complete inertia systems and integrated systems such as doppler/inertia.The paper was presented at the Marine Navigation Symposium held in Sandefjord, Norway, on 24–6 September 1969 and is reproduced with the permission of the organizers.The gyro-compass was first fitted on board a ship as long ago as 1908. Its function has been as the main reference by which the ship is steered and to which navigation by dead reckoning and direction finding is referred. The compass has been developed continuously to provide a more reliable, more accurate, and smaller instrument costing typically £1000 to £2000.

scholarly journals Direction-finding Wireless and Marine Navigation

Nature ◽  
1921 ◽  
Vol 107 (2690) ◽  
pp. 363-364
Author(s):  
J. J. BENNETT
Keyword(s):  
Direction Finding ◽  
Marine Navigation

The Adoption of Decca as an Aid to Navigation at Sea

1950 ◽  
Vol 3 (4) ◽  
pp. 336-346
Author(s):  
E. Fennessy
Keyword(s):  
Direction Finding ◽  
Accurate Calculation ◽  
Radio Observations ◽  
General Estimate ◽  
Marine Navigation ◽  
Considerable Period ◽  
Made In

The determination of a ship's position by means of radio observations from fixed shore transmitters has now been practised for a considerable period of time, but up to the outbreak of the last war the accuracy obtained from the conventional direction finding systems then in use was only sufficient to provide a general estimate of position suitable for off-shore navigation in waters where the ship's position need be known only to within a mile or two. It was not until, under the pressure of wartime requirements, the modern range of radio aids to marine navigation were produced that means were provided by which the mariner was enabled to determine his position with an accuracy comparable with that of the best visual fixing but with the great advantage that these observations could be made in all conditions of visibility and weather. At the end of the last war there were three systems of outstanding merit available: Gee, Loran and Decca. All three systems, as is well known, employ a combination of master and slave stations, the transmissions of which provide radio position lines capable of accurate calculation and plotting on navigational charts.

Meteorology and High Altitude Aviation

1946 ◽  
Vol 50 (430) ◽  
pp. 787-810
Author(s):  
G. M. B. Dobson ◽  
A. W. Brewer
Keyword(s):  
High Altitude ◽  
Practical Interest ◽  
Direction Finding ◽  
Meteorological Conditions ◽  
General Distribution ◽  
Upper Troposphere ◽  
Ground Station ◽  
Radio Transmitters ◽  
Temperature And Pressure ◽  
Made In

The regular operating heights of aircraft, both civil and military, are continually increasing until now regular flights within the stratosphere are planned. There is, therefore, much practical interest in the meteorological conditions to be found in the stratosphere and upper troposphere. For about half a century meteorologists have been sending up small balloons carrying recording instruments which measure the temperature and pressure at heights up to 60,000 ft. or more, while recently radio transmitters have been incorporated in the instruments which transmit the temperature and the pressure to the ground station. By following the path of the balloon either by sight or by radio direction-finding, the velocity and direction of the wind at the various heights can also be found. From measurements made in these ways meteorologists have for many years known the general distribution of temperature and winds up to great heights.

Direction Finding for Radio Transmitters With Mini Interferometric Network

Radio Science ◽  
2018 ◽  
Vol 53 (10) ◽  
pp. 1218-1224
Author(s):  
X. Qu ◽  
X. Xu ◽  
S. Wang ◽  
J. Li ◽  
W. Zhu ◽  
...  
Keyword(s):  
Direction Finding ◽  
Radio Transmitters
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