Featured Research

from universities, journals, and other organizations

Korean researchers reveal new sea defense model

Date:
January 18, 2011
Source:
SAGE Publications
Summary:
Military tension between North Korea and the Republic of Korea (South Korea) extends to areas of the Yellow Sea. Now defense experts based in the Republic of Korea have devised improved methods to model underwater warfare, which they believe can aid future decisions about weapons and defense purchases.

Military tension between North Korea and the Republic of Korea (South Korea) extends to areas of the Yellow Sea. Now defence experts based in the Republic of Korea have devised improved methods to model underwater warfare, which they believe can aid future decisions about weapons and defence purchases. The details appear January 18 in the Journal of Defense Modeling and Simulation.

Related Articles


The researchers based at the Korea Advanced Institute of Science and Technology (KAIST) and Seowon University, both in the Republic of Korea, set out to design an underwater warfare model to gain insight into how factors such as tactics and the performance of underwater weapons influence the measurement of effectiveness (MOE) of a weapons system. Governments considering whether to purchase equipment, such as torpedoes or mobile decoys, use these types of modelling and simulation as part of their decision making process both for purchases, and for making tactical decisions.

The new model uses DEVS formalism. DEVS -- Discrete Event System Specification -- is a widely used, modular and hierarchical technique for modelling and analyzing general systems.

In their paper, the authors introduce a co-modelling methodology for flexible model architecture, which they use to model the underwater warfare system:

"In the underwater warfare model, change in detailed algorithms and dynamic equations, such as sensor algorithms, is more frequent than the change in the abstract behavior," explains corresponding author, Kyung-Min Seo. "Therefore, by separating abstract behavior and detailed algorithms, we can test candidate tactics or algorithms of underwater platforms with minimal modification of the model."

One drawback of previous modelling approaches has been that a model cannot be re-used. The Korean researchers overcame this by using a three-part modelling methodology that provides generic representations of underwater platforms. This meant that each sub-model -- in this case, a controller model, a sensor model, and a manoeuver model -- was then reusable for other platform models.

The researchers tested their model with extensive combat simulations, to investigate the impact of parameters such as tactics or weapons performance on an anti-torpedo combat system's effectiveness. For instance, in the case of simulation of a surface ship's evasion of a torpedo, they use factors including the detection range of a surface ship, the pattern of the decoy operating system, and the speed and operating time of the decoy.

"Experimental results support assessment of anti-torpedo countermeasure effectiveness and the decision-making process for future equipment procurements," Seo suggests. However, he adds that external environmental factors, such as wind speed and ocean current, were not included in this model, which was based on a passive sonar system. The next challenge, to include multi-static acoustics within the underwater environment using multiple sonars, along with environmental factors, is the team's goal for future research.


Story Source:

The above story is based on materials provided by SAGE Publications. Note: Materials may be edited for content and length.


Journal Reference:

  1. Kyung-Min Seo, Hae Sang Song, Se Jung Kwon and Tag Gon Kim. Measurement of Effectiveness for an Anti-torpedo Combat System Using a Discrete Event Systems Specification-based Underwater Warfare Simulator. Journal of Defense Modeling and Simulation, January 18, 2011 DOI: 10.1177/1548512910390245

Cite This Page:

SAGE Publications. "Korean researchers reveal new sea defense model." ScienceDaily. ScienceDaily, 18 January 2011. <www.sciencedaily.com/releases/2011/01/110118101350.htm>.
SAGE Publications. (2011, January 18). Korean researchers reveal new sea defense model. ScienceDaily. Retrieved December 19, 2014 from www.sciencedaily.com/releases/2011/01/110118101350.htm
SAGE Publications. "Korean researchers reveal new sea defense model." ScienceDaily. www.sciencedaily.com/releases/2011/01/110118101350.htm (accessed December 19, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Friday, December 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Navy Unveils Robot Fish

Navy Unveils Robot Fish

Reuters - Light News Video Online (Dec. 18, 2014) The U.S. Navy unveils an underwater device that mimics the movement of a fish. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
3D Printed Cookies Just in Time for Christmas

3D Printed Cookies Just in Time for Christmas

Reuters - Innovations Video Online (Dec. 18, 2014) A tech company in Spain have combined technology with cuisine to develop the 'Foodini', a 3D printer designed to print the perfect cookie for Santa. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
First Etihad Superjumbo Flight in December

First Etihad Superjumbo Flight in December

AFP (Dec. 18, 2014) The first flight of Etihad Airways' long-awaited Airbus A380 superjumbo will take place later in December, the Abu Dhabi carrier said Thursday, also announcing its first Boeing 787 Dreamliner route. Duration: 01:09 Video provided by AFP
Powered by NewsLook.com
Ford Expands Air Bag Recall Nationwide

Ford Expands Air Bag Recall Nationwide

Newsy (Dec. 18, 2014) The automaker added 447,000 vehicles to its recall list, bringing the total to more than 502,000. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins