With the expansion of the shipping and port logistics industry in the 21st century, the traffic density is continuously increased because of the increase in volumes of world sea freight and fleets, as well as the increase in the causes of potential marine accidents, such as ship collisions and stranding. Accordingly, the International Maritime Organization (IMO) has requested that the installation and operation of VTS should be applied in areas with high risk of marine traffic, and the request should be included as one of the Safety of Life at Sea (SOLAS) regulations. In this paper, the fundamental requirements of the radar system for vessel traffic services were analyzed and the analyzing factors were based on the IALA guideline.s This paper also includes results for the requirement and recommendation analysis on detection distance, target separation, and the target position accuracy of X-band radar. Also, to check if it satisfies the requirement of detection distance, range and azimuth separation of small point targets, and target position accuracy from the IALA guidelines, the test was conducted through the radar image acquired at the VTS center, and hence, the validity of the technical performance requirements was confirmed.

Abstract
1. Introduction
2. Radar Performance RequirementsAnalysis
    2.1 Target Separation
    2.2 Target Position Accuracy
3. Radar performance test
    3.1 Radar detection range
    3.2 Range and azimuth separation
    3.3 Target Position Accuracy
4. Theoretical verification of detectionrange
    4.1 Detection distance of Yeosu VTS OdongdoRadar using the detection range reference table
    4.2 Detection range using CARPET program
5. Performance test results
    5.1 Selection of performance test site
    5.2 Weather condition
    5.3 Test Targe
    5.4 Performance test
6. Conclusion
References

• Joong Sung JEON(Engineering Division 2, Anse Technologies Co. Ltd)