한국해양대학교

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SONAR SYSTEM SOFTWARE AND HARDWARE DEVELOPMENT: FISH FINDER APPLICATION

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dc.contributor.author RAHMDEL SAJAD -
dc.date.accessioned 2019-12-16T02:49:26Z -
dc.date.available 2019-12-16T02:49:26Z -
dc.date.issued 2018 -
dc.identifier.uri http://repository.kmou.ac.kr/handle/2014.oak/11592 -
dc.identifier.uri http://kmou.dcollection.net/common/orgView/200000011732 -
dc.description.abstract A study of how to develop a sonar system is presented in this thesis. A typical sonar system has two sub circuits, namely, transmit path and receive path. On transmit path, HV (high voltage) pulses are generated and transmitted into the water using a transducer. On the receive path, the echo of the transmitted signal is received. This received signal is then amplified and converted into digital data using an ADC. The digital data is then sent to a PC for signal processing. After signal processing, the results are shown in a GUI. Software technologies used in this study include Fish Finder GUI, Visual C++ GUI and back-end code, AFE5809 GUI, and High Speed Data Converter Pro (by Texas Instruments). Matlab was used to develop the Fish Finder GUI similar to commercial fish finders. The Fish Finder GUI also does noise filtering as well as calculating the depth and distance to the detected objects. Visual C++ was used to develop a software, called, Control GUI. This software, receives the data from the TSW1400, saves the data as a .CSV file. It also connects all used software programs together to work as a complete fish finder system. The developed sonar system was tested in 1-meter water, as well as 10-meter shore side test. First, HV pulse was generated and transmitted into the water. After that, the echo of the pulse was captured. Then, the echo was converted into digital data. Finally, the digital data was the digital data results were successfully shown in the GUIs. -
dc.description.tableofcontents Chapter 1. Introduction 12 Chapter 2. Theory of Sonar Systems 15 2.1 Overview 15 2.2 Traditional pulse and Chirp 15 2.3 Sonar receive sub-path 16 2.4 Beamforming 17 2.5 Signal-to-Noise Ratio (SNR) 18 2.6 Velocity of sound in water 19 2.7 Sonar Transducer 20 Chapter 3. Sonar Prototype Hardware 21 3.1 Sonar System Prototype 21 3.2. Sonar Transmit Path Sub-Circuit 22 3.2.1 OMAP-L138: 22 3.2.2 HV (High-Voltage) Pulse Generator: 23 3.2.3 Transducer: 23 3.3. Sonar Receive Path Sub-Circuit 23 3.3.1 TX810 24 3.3.2 AFE5809 25 3.3.3 TSW1400 25 3.2.3 Transducer 25 3.3.4 PC 26 3.4. Details of each sonar component 26 3.4.1 OMAP-L138 26 3.4.2 OMAP-L138’s Enhanced High-Resolution Pulse-Width Modulator (eHRPWM) 27 3.4.3. HV (High-Voltage) Pulse Generator 29 3.4.4. Transducer 31 3.4.5. TX810: 32 3.4.6. AFE5809 33 3.4.7 TSW1400 36 Chapter 4. Sonar Prototype Software 39 4.1 SW.1 CCS: Control of A.1 OMAP-L138 39 4.2 SW.2 AFE5809 GUI: Control of B.2 AFE5809 40 4.3 SW.3 HSDC Pro: Control of B.3 TSW1400 41 4.4 SW.4 Control GUI: 42 4.5 SW.5 Fish Finder GUI: Signal Processing and GUI 43 Chapter 5. Experiments 47 5.1 Transmit Sub-Circuit Test 47 5.2 Receive Sub-Circuit Test 47 5.3 1-meter test 49 5.4 10-meter shore test 57 Chapter 6. Conclusion 60 Future direction 60 References 61 Appendix A. Control GUI 63 Appendix B. The Schematics of the custom HV Pulse Generator 73 Appendix C. Prototype Photos 74 Appendix D. Snippet of C++ code used to configure A.1 OMAP-L138’s eHRPWM 76 Appendix E. Snippet of the code behind Fish Finder GUI (Matlab) 78 Appendix F. Schematics of AFE5809 EVM 80 Appendix G. Schematic of TX810 EVM 90 Appendix H. Schematic of OMAP-L138 EVM 91 -
dc.language eng -
dc.publisher Department of Control and Instrumentation Engineering Graduate School of Korea Maritime and Ocean University -
dc.rights 한국해양대학교 논문은 저작권에 의해 보호받습니다. -
dc.title SONAR SYSTEM SOFTWARE AND HARDWARE DEVELOPMENT: FISH FINDER APPLICATION -
dc.type Dissertation -
dc.date.awarded 2018-02 -
dc.contributor.department 대학원 제어계측공학과 -
dc.description.degree Master -
dc.identifier.holdings 000000001979▲200000000139▲200000011732▲ -
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제어계측공학과 > Thesis
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