NAVIGATION AND HYDROGRAPHY ¹35/2013
On Maritime Doctrine of the Russian Federation for the
Period of up to 2030 and Concepts of the Federal Law of State Management of the
Maritime Activities. A. F. Zenkov,
A. I. Ismailov – Navigation and Hydrography.
– 2013. – No. 35. – Ð. 8–17.
The main results of forming the Maritime Doctrine of
the Russian Federation for the period of up to 2030 are considered. The role
played by GNINGI in its forming is described. The main directions of forming
the Federal Law of the state management of the maritime activities are
presented.
Key words: maritime doctrine, national maritime
policy, maritime activities, naval activities, regional directions, functional
directions, safety of maritime activities, state management of maritime
activities.
Removal of
Limitation of Antijamming Capability for Satellite
Navigation System Receivers due to Odd Number of Ranging Code Symbols in Epoch. Y. S. Dubinko,
P. I. Maleyev, A. N. Soloshchev – Navigation and Hydrography. – 2013. – No. 35. – Ð. 18–23.
The method used to remove the antijamming
capability limitation of SNS receivers due to odd number of ranging code
symbols in epoch because of meander modulation of the receiver input signal (or
replica in correlator) is considered. The meander is introduced at the receiver
input and, if necessary, can be easily removed by reverse conversion before
formation of auto- and cross-correlation functions. Removal of antijamming capability limitations by balancing the code in
the receiver allows the practical invulnerability of GLONASS to jamming to be
provided.
Key words: receivers
of satellite navigation systems, pseudorandom sequence, recurrence period of
ranging code (epoch), antijamming capability
limitation.
Methodology of Evaluation of the Efficiency of the Use
of Adaptive Information-measuring Navigation Systems. A. D. Golyakov,
I. V. Fominov – Navigation and Hydrography.
– 2013. – No. 35. – Ð. 24–29.
The methodology of evaluation of the effectiveness of
the use of adaptive information-measuring systems to provide the navigation and
hydrographic support for maritime activities is considered. Results of the
investigation of the effectiveness of the example of adaptive
information-measuring navigation system containing the main and additional
means of measurement and the adaptation are presented.
Key words: navigation-hydrographic
support, adaptive information-measuring systems, efficiency, performance
indicators.
Methodical Aspects of Design Work Intended to Provide
the Navigation Safety under the Present-Day Conditions. A. A. Lobanov, Y. V. Rumyantsev,
D. M. Bukhov – Navigation and Hydrography.
– 2013. – No. 35. – Ð. 29–38.
The problems connected with design of the shipping
routes, taking into account the changes in the interagency sphere of the
Russian Federation and IMO requirements to accuracy standards of ship
navigation are considered. The legislative and normative documents for
designing the shipping routes at the current stage are presented. The
methodical schemes for the main design stages and standard composition of the
design documents are suggested. The conclusion is drawn about the necessity to
develop new documents or to correct the existing ones in the sphere of
designing the shipping routes, based on the presented methodical approaches.
Key words: shipping routes, IMO, navigation safety, normative and
legislative basis, the guiding documents, analysis, methodical schemes, the
International Law of the Sea.
Substantiation
of Requirements to Navigation Support for Underway Measurement of Current
Velocity by Acoustic Doppler Current Profiler. E. S. Zubchenko – Navigation
and Hydrography. – 2013. – No. 35. – Ð. 39–52
Based on modeling the underway current velocity
measurement error by acoustic Doppler current profiler, the necessary
measurement accuracy for the vessel¢s
angles of motions, course and speed, is evaluated. It is shown that the
required accuracy for the vessel¢s
absolute speed can be obtained by using the modified algorithm for calculating
the speed of an object in SNS receivers. It is based on presenting the
difference of consecutively measured carrier phases as an object movement
vector, taking the movement of the receiver antenna due to the vessel¢s
motions into account.
Key words: error, accuracy, measurement, speed, velocity, satellite
navigation system (SNS), receiver, profiler.
On Acceptable Value of Error for the Position of
Sounding in the Detailed Survey. N. A. Nesterov –
Navigation and Hydrography. – 2013. – No. 35. – Ð. 53–58.
The necessity to specify the requirements for accuracy
of determining the position of sounding when carrying out the engineering
explorations in shallow water is shown. The requirements for provision of more
exact value of error for the position of sounding depending on its measurement
error value are substantiated.
Key words: multi-beam echosounder, error, detailed survey of sea bottom
relief, horizontal and vertical uncertainty.
Automated Method of Computing the Lines of Watersheds and Thalwegs. Y. N. Zhukov – Navigation and Hydrography. –
2013. – No. 35. – Ð. 58–64.
The problem of finding the structural lines of the
bottom relief by the depth point data array, using the computer calculations,
is considered. It is shown that this problem can be correctly solved based on
the combinatorial topology algorithms if the depth data array is presented in
the form of the Morse discrete function.
Key words: structural lines of relief, Morse discrete function,
separatrix.
Algorithm of Calculating the Phases of Tidal Cycles (Water Clock). Y. N. Zhukov – Navigation and Hydrography. –
2013. – No. 35. – Ð. 64–69.
The problem of calculating the water clock for the
specific point, the Island of Sosnovets, is
considered. To solve this problem, the tide prediction by the harmonic
constituents followed by the calculation of Gilbert conversion is suggested to
be used. The algorithm presented here allows the values of the water clock to
be calculated in the mean solar time at an accuracy to
one minute.
Key words: water clock, phase of tide, Gilbert conversion.
Situational Approach in the Methodology of Mathematical Modeling of
Decision-making in the Interests of Navigation and Hydrographic Support. V. N. Zavgorodny –
Navigation and Hydrography. – 2013. – No. 35. – Ð. 70–74.
An approach to the choice of mathematical criteria
based on the classification of information situations that can be useful for a
wide range of tasks of navigation and hydrographic support for the naval forces
is considered. Partition of information into the classes of situations is
carried out according to the degree of uncertainty of information available to
the command at the time of the decision-making.
Key words: complex systems, decision support, multi-criteria problems,
efficiency criteria.
Method of
Evaluation of the Standard Hour Cost for the Work of the Research Organization
with Budgetary and Commercial Financing. N. A. Slavina –
Navigation and Hydrography. – 2013. – No. 35 – Ð. 74–79.
The method of evaluating the standard hour cost of the
work in a research organization by commercial contracts and state defence orders is considered. It is shown that the value of
the standard hour cost for commercial contracts is to exceed the standard hour
cost for the state contracts.
Key words: standard hour cost, state defence
order, state contract, commercial contract, equilibrium state, accounting of
expenditure, price formation, dedicated use of finance.
Lighthouses of Lake Ladoga. V. I. Koryakin –
Navigation and Hydrography. – 2013. – No. 35. – Ð. 80–98.
The history of creation of the lighthouses of Lake
Ladoga, their aim, specific features of construction and employment, including
the period of the Great Patriotic War, is considered.
Key words: lighthouse, Lake Ladoga, merchant vessel, naval ship.