• Strategy21
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• s.31
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• pp.164-189
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• 2013

Last December, the Abe government came back, and it is critical core of Northeast Asia. They visited to Yasukuni Shrine, denied to Korea's invasion and they are denying all of their invasion history. I'm afraid they want to take Dokdo. Dokdo is Korean territory, but Japan politics assert it belongs to them. To make matters worse, they are waiting an opportunity to invade. Ministry of Foreign Affair blue paper and Ministry of Defense white paper have claimed Dokdo as Japanese territory, and many right wing politicians are taking part in the Cabinet. Liberal Democratic Party of Japan is becoming more right wing politicians than before by Japan Restoration Party, and the others also have more right wing ideologies. It can't control Japan right wing political parties. They finally aim to take Dokdo. In this situation, we have to defend Dokdo. Japan must be very important partner for our nation's development. But it is necessary to trust between two countries. Dokdo is effective controlled by Korea. It is the best way how to keep Dokdo. During Dokdo is effective controlled by Korea, the Japanese Government has limited Dokdo's ownership. Now we don't have any way to keep Dokdo except more effective control. We have strategies about Japanese claim of Dokdo's ownership as follows. First, we can overpower Japan right wing politics as Japan conscientious force's ideology. Second, Japan politics say to Dokdo's ownership is based on The San Francisco Treaty. But it is not right. Third, we have to exchange a lot of local government and civic society in Japan. Finally, we must prepare thoroughly to bring the matter to the International Court of Justice.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.46 no.12
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• pp.1049-1055
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• 2018

This paper proposes the Signal Quality Indicator (SQI) to certify the wired communication channels connected between sub-systems embedded in guided flight systems. The communication signals can be distorted due to the poor interconnections of wired channels, the interference from the signals passing through the adjacent routed channels, and additive white Gaussian noises. As the ways to find out the condition of the communication channels, we present the Hamming distance based SQI (H-SQI) and the Euclidean distance based SQI (E-SQI). Two SQIs are compared in terms of the SQI resolution performance and the required number of hardware resources for implementations. The E-SQI requires the 10 times FPGA resources and an additional analog-digital converter over the H-SQI in spite of its outstanding SQI resolution performance. Moreover, the H-SQI could have the enough SQI resolution performance to find out the channel condition by increasing the oversampling rate, so the H-SQI is the more adequate than the E-SQI for the SQI of the guided flight systems.

• Journal of the Korean Institute of Intelligent Systems
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• v.24 no.3
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• pp.271-278
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• 2014

In spite of that stop line and crosswalk should be aware of the most basic objects in transportation system, its features extracted are very limited. In addition to image-based recognition technology, laser and RF, GPS/INS recognition technology, it is difficult to recognize. For this reason, the limited research in this area has been done. In this paper, the algorithm to recognize the stop line and crosswalk is designed and implemented using image-based recognition technology with the images input through a vision sensor. This algorithm consists of three functions.; One is to select the area, in advance, needed for feature extraction in order to speed up the data processing, 'Region of Interest', another is to process the images only that white color is detected more than a certain proportion in order to remove the unnecessary operation, 'Color Pattern Inspection', the other is 'Feature Extraction and Recognition', which is to extract the edge features and compare this to the previously-modeled one to identify the stop line and crosswalk. For this, especially by using case based feature comparison algorithm, it can identify either both stop line and crosswalk exist or just one exists. Also the proposed algorithm is to develop existing researches by comparing and analysing effect of in-vehicle camera installation and changes in recognition rate of distance estimation and various constraints such as backlight and shadow.