95 research outputs found
Enhancement of Optics-Based Sensor Node Localization using Multiple Base Stations
ํ์๋
ผ๋ฌธ (์์ฌ)-- ์์ธ๋ํ๊ต ๋ํ์ : ๊ธฐ๊ณํญ๊ณต๊ณตํ๋ถ, 2013. 8. ๋ฐ์ฐฌ๊ตญ.๋ณธ ๋
ผ๋ฌธ์์๋ MEMS(Micro-Electro-Mechanical Systems) CCR(Corner Cube Retroreflector)์ ์ด์ฉํ ๊ด ์ ํธ ๊ธฐ๋ฐ ๋ฌด์ ์ผ์ ๋คํธ์ํฌ์ ์ผ์ ๋
ธ๋ ์์น ์ธ์์ ์ํํ๊ธฐ ์ํด ์ค์ ํ๊ฒฝ์์ ๋ฐ์ํ ์ ์๋ ๋ฌธ์ ์ ๋ค์ ๋ถ์ํ์ฌ ์ด๋ฅผ ๊ทน๋ณตํ๊ธฐ ์ํ ๋ค์ค ๋ฒ ์ด์ค ์คํ
์ด์
์์คํ
์ ์ ์ํ๋ค. ๊ทธ ํ ์ ์ํ ์์คํ
์ ์ด์ฉํ ์์น ์คํ์ ํตํ์ฌ ๊ทธ ์ฑ๋ฅ์ ๊ฒ์ฆํ๋ค. ๊ด ์ ํธ ๊ธฐ๋ฐ ์ผ์ ๋
ธ๋ ์์น ์ธ์ ์์คํ
์ ํ์ ํ๋ ๋ฒ ์ด์ค ์คํ
์ด์
์์ ๋ฐ์ฌ๋ ๊ด์ ํธ์ ์ถ๋ฐ์๊ฐ๊ณผ ์ผ์ ๋
ธ๋์ ๋ถ์ฐฉ๋ MEMS CCR์ ๋ฐ์ฌ๋์ด ๋๋์์ค๋ ๋์ฐฉ์๊ฐ ์ฐจ์ด๋ฅผ ์ด์ฉํ์ฌ ๊ฑฐ๋ฆฌ๋ฅผ ๊ณ์ฐํ๊ณ , ๊ฑฐ๋ฆฌ๊ฐ ๊ณ์ฐ๋ ๋์ ๋ฒ ์ด์ค ์คํ
์ด์
์ ํ์ ๊ฐ์ ์ธก์ ํจ์ผ๋ก์จ ์ด๋ฃจ์ด์ง๋ค. MEMS CCR์ ์ธ ๊ฐ์ ๋ฐ์ฌ๋ฉด์ด ์๋ก ์์ง์ ์ด๋ฃจ๊ณ ์๋ ๋ง์ดํฌ๋ก ๋ฏธํฐ ๊ธ์ ํฌ๊ธฐ์ ๋ฐ์ฌ์ฒด๋ก์จ ์
์ฌํ ๊ด ์ ํธ๋ฅผ ์
์ฌ ๋ฐฉํฅ์ ํํํ ๋ฐฉํฅ์ผ๋ก ๋ฐ์ฌ์ํฌ ์ ์๋ค. ์ค์ ์ด ์์คํ
์ ๊ฐ์ง๊ณ MEMS CCR ์ ์์น ์ธ์ํ๋ ์ผ์ ๋คํธ์ํฌ๋ฅผ ๊ตฌ์ฑํ ๋ ๋ฌธ์ ์ ์ด ๋ฐ์ํ๋ค. ์ฒซ ๋ฒ์งธ๋ก MEMS CCR์์ ๋ฐ์ฌ๋์ด ๋ฒ ์ด์ค ์คํ
์ด์
์ผ๋ก ๋์์ค๋ ๊ด ์ ํธ์ ์ธ๊ธฐ๊ฐ ๋ฏธ์ฝํ์ฌ ์ฝ 30~40cm์ ๋ ๋ฐ์ ์ธก์ ๊ฑฐ๋ฆฌ๊ฐ ๋์ง ์๋ ๋ฌธ์ ์ ๊ณผ, ๋ฌด์์์ ์ผ๋ก ๋ถํฌ๋ ์ผ์ ๋
ธ๋๊ฐ ๋ฒ ์ด์ค ์คํ
์ด์
๊ณผ ์ผ์ง์ ์ผ๋ก ๋ฐฐ์ด๋ ๊ฒฝ์ฐ ๊ด ์ ํธ์ ์ง์ง์ฑ์ผ๋ก ์ธํด ๊ด ์ ํธ๊ฐ ๋๋ฌํ์ง ๋ชปํด ์์น ์ธ์์ด ๋์ง ์๋ ๋ฌธ์ ์ ์ด๋ค. ์ด๋ฅผ ํด๊ฒฐํ๊ณ ์ ๋ณธ ๋
ผ๋ฌธ์์๋ ๋ค์๊ณผ ๊ฐ์ ๋ฐฉ์์ ์ฐ๊ตฌํ์๋ค. ๋จผ์ MEMS CCR์ ๊ด์ ํธ๊ฐ ๋ฐ์ฌ๋์ด ๋ฒ ์ด์ค ์คํ
์ด์
์ผ๋ก ๋์์ค๋ ๊ณผ์ ์ ๋ถ์ํ์ฌ ๋ฒ ์ด์ค ์คํ
์ด์
์์ MEMS CCR์ ๊ฒ์ถํ๊ธฐ ์ํด ํ์ํ ํ๋์จ์ด์ ์ฌ์์ ๋ํ ๋ถ์์ ์ํํ์๋ค. ๊ทธ ๋ค์์ผ๋ก ๋ฒ ์ด์ค ์คํ
์ด์
์์คํ
์ ๊ตฌ์กฐ๋ฅผ ๋ณ๊ฒฝํ์ฌ ๋ค๋ฅธ ์์น ์ธ์ ๊ธฐ๋ฒ์ ์ฌ์ฉํ๊ฑฐ๋ MEMS CCR์ ๋ณ๊ฒฝ์ ์ ์ํ์ฌ ๊ฒฐ๊ณผ์ ์ผ๋ก ๊ธฐ์กด์ ์ธก์ ๊ฐ๋ฅ ๊ฑฐ๋ฆฌ๋ฅผ 4๋ฐฐ ์ด์ ํฅ์ ์์ผฐ๋ค. ๋ฌด์์์ ์ผ๋ก ๋ถํฌ๋ ์ผ์ ๋
ธ๋์ ๋ฌธ์ ๋ ๊ธฐ์กด์ ๋จ์ผ ๋ฒ ์ด์ค ์คํ
์ด์
์ด ์๋ ๋ค์ค ๋ฒ ์ด์ค ์คํ
์ด์
์์คํ
์ ์ ์ํ์ฌ ํด๊ฒฐํ์๋ค. ๊ทธ ํ ์์ ๋ ๋ฌธ์ ์ ์ ํด๊ฒฐํ๋๋ฐ ์ฌ์ฉ๋ ๋ค์ค ๋ฒ ์ด์ค ์คํ
์ด์
์์คํ
์ ์ ์ฉํ ์ผ์ ๋
ธ๋ ์์น ์ธ์ ์คํ์ ํตํ์ฌ ์์น ์ธ์ ์ฑ๋ฅ์ ํฅ์ ๋ฉด์์๋ ํจ์ฉ์ฑ์ด ์์์ ํ์ธํ์๋ค. ์ด๋ฅผ ํตํด ์ค์ ์ผ์ ๋คํธ์ํฌ ๊ตฌ์ฑ์ ๋ค์ค ๋ฒ ์ด์ค ์คํ
์ด์
์์คํ
์ด ํ์์ ์ด๋ผ๋ ๊ฒฐ๋ก ์ ๋ด๋ฆด ์ ์์๋ค.๋ชฉ ์ฐจ
์ด๋ก โ
ฐ
๋ชฉ์ฐจ โ
ฐโ
ด
ํ ๋ชฉ์ฐจ โ
ดโ
ฐ
๊ทธ๋ฆผ ๋ชฉ์ฐจ โ
ดโ
ฐโ
ฐ
1. ์ ๋ก 1
1.1. ์ฐ๊ตฌ ๋ฐฐ๊ฒฝ 1
1.2. ์ฐ๊ตฌ์ ๋ชฉ์ ๋ฐ ๋ด์ฉ 6
2. ์์น ์ธ์ ์์คํ
๋ถ์ 9
2.1 ToF ์ค์บ๋ ์์คํ
์ ์๋ฆฌ 9
2.2 ์ค์ ์ ์ฉ์ ๋ฐ์ํ๋ ๋ฌธ์ ์ ๋ถ์ 13
3. ์ค์ ์ ์ฉ์ ์ํ ์์คํ
๊ฐ์ ์ฐ๊ตฌ 15
3.1 ๊ฑฐ๋ฆฌ์ ๋ฐ๋ฅธ ๊ฒ์ถ ์กฐ๊ฑด ๋ถ์ 17
3.1.1 ์
์ฌ ๊ด ์ ํธ์ ๊ด ๋ฐ๋ 19
3.1.2 ์ ํจ ๋ฐ์ฌ ๋ฉด์ 21
3.1.3 ๋ฐ์ฌ์จ 24
3.1.4 ๊ด ๋ถ๋ฆฌ๊ธฐ 25
3.1.5 ์ต๋ ๋ฐ์ฌ ๊ด ์ ํธ ์ธ๊ธฐ 26
3.1.6 ์ด๋ก ์๊ณผ ์ธก์ ์น์ ๋น๊ต 27
3.1.7 ์ด๋ก ์์ ํตํ ํ๋ผ๋ฏธํฐ ์๋ณ 29
3.2 ๋ฒ ์ด์ค ์คํ
์ด์
์ ๋ณ๊ฒฝ์ ํตํ ์ฑ๋ฅ ํฅ์ 31
3.2.1 AoA ์์น ์ธ์ ๊ธฐ๋ฒ 34
3.2.2 Lighthouse ์์น ์ธ์ ๊ธฐ๋ฒ 36
3.2.3 ์์น ์ธ์ ๊ธฐ๋ฒ์ ์ฑ๋ฅ ๋น๊ต 38
3.3 MEMS CCR์ ๋ณ๊ฒฝ์ ํตํ ์ฑ๋ฅ ํฅ์ 40
3.4 ๋ค์ค ๋ฒ ์ด์ค ์คํ
์ด์
๊ตฌ์ฑ 43
4. ์์น ์ธ์ ์คํ ๋ฐ ๊ฒฐ๊ณผ ๋ถ์ 45
4.1 ์คํ ์กฐ๊ฑด 46
4.2 ์คํ ๊ฒฐ๊ณผ ๋ถ์ 48
5. ๊ฒฐ๋ก ๋ฐ ์ถํ ์ฐ๊ตฌ ๊ณผ์ 52
์ฐธ๊ณ ๋ฌธํ 55
Abstract 59Maste
Air Force Institute of Technology Research Report 2012
This report summarizes the research activities of the Air Force Institute of Technologyโs Graduate School of Engineering and Management. It describes research interests and faculty expertise; lists student theses/dissertations; identifies research sponsors and contributions; and outlines the procedures for contacting the school. Included in the report are: faculty publications, conference presentations, consultations, and funded research projects. Research was conducted in the areas of Aeronautical and Astronautical Engineering, Electrical Engineering and Electro-Optics, Computer Engineering and Computer Science, Systems and Engineering Management, Operational Sciences, Mathematics, Statistics and Engineering Physics
Air Force Institute of Technology Research Report 2009
This report summarizes the research activities of the Air Force Institute of Technologyโs Graduate School of Engineering and Management. It describes research interests and faculty expertise; lists student theses/dissertations; identifies research sponsors and contributions; and outlines the procedures for contacting the school. Included in the report are: faculty publications, conference presentations, consultations, and funded research projects. Research was conducted in the areas of Aeronautical and Astronautical Engineering, Electrical Engineering and Electro-Optics, Computer Engineering and Computer Science, Systems and Engineering Management, Operational Sciences, Mathematics, Statistics and Engineering Physics
Air Force Institute of Technology Research Report 2015
This report summarizes the research activities of the Air Force Institute of Technologyโs Graduate School of Engineering and Management. It describes research interests and faculty expertise; lists student theses/dissertations; identifies research sponsors and contributions; and outlines the procedures for contacting the school. Included in the report are: faculty publications, conference presentations, consultations, and funded research projects. Research was conducted in the areas of Aeronautical and Astronautical Engineering, Electrical Engineering and Electro-Optics, Computer Engineering and Computer Science, Systems Engineering and Management, Operational Sciences, Mathematics, Statistics and Engineering Physics
Air Force Institute of Technology Research Report 2015
This report summarizes the research activities of the Air Force Institute of Technologyโs Graduate School of Engineering and Management. It describes research interests and faculty expertise; lists student theses/dissertations; identifies research sponsors and contributions; and outlines the procedures for contacting the school. Included in the report are: faculty publications, conference presentations, consultations, and funded research projects. Research was conducted in the areas of Aeronautical and Astronautical Engineering, Electrical Engineering and Electro-Optics, Computer Engineering and Computer Science, Systems Engineering and Management, Operational Sciences, Mathematics, Statistics and Engineering Physics
Air Force Institute of Technology Research Report 2014
This report summarizes the research activities of the Air Force Institute of Technologyโs Graduate School of Engineering and Management. It describes research interests and faculty expertise; lists student theses/dissertations; identifies research sponsors and contributions; and outlines the procedures for contacting the school. Included in the report are: faculty publications, conference presentations, consultations, and funded research projects. Research was conducted in the areas of Aeronautical and Astronautical Engineering, Electrical Engineering and Electro-Optics, Computer Engineering and Computer Science, Systems Engineering and Management, Operational Sciences, Mathematics, Statistics and Engineering Physics
Air Force Institute of Technology Research Report 2010
This report summarizes the research activities of the Air Force Institute of Technologyโs Graduate School of Engineering and Management. It describes research interests and faculty expertise; lists student theses/dissertations; identifies research sponsors and contributions; and outlines the procedures for contacting the school. Included in the report are: faculty publications, conference presentations, consultations, and funded research projects. Research was conducted in the areas of Aeronautical and Astronautical Engineering, Electrical Engineering and Electro-Optics, Computer Engineering and Computer Science, Systems and Engineering Management, Operational Sciences, Mathematics, Statistics and Engineering Physic
2007 Annual Report of the Graduate School of Engineering and Management, Air Force Institute of Technology
The Graduate School\u27s Annual Report highlights research focus areas, new academic programs, faculty accomplishments and news, and provides top-level sponsor-funded research data and information
Air Force Institute of Technology Research Report 2013
This report summarizes the research activities of the Air Force Institute of Technologyโs Graduate School of Engineering and Management. It describes research interests and faculty expertise; lists student theses/dissertations; identifies research sponsors and contributions; and outlines the procedures for contacting the school. Included in the report are: faculty publications, conference presentations, consultations, and funded research projects. Research was conducted in the areas of Aeronautical and Astronautical Engineering, Electrical Engineering and Electro-Optics, Computer Engineering and Computer Science, Systems Engineering and Management, Operational Sciences, Mathematics, Statistics and Engineering Physics
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