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INFORMATION ON DOCTORAL THESIS
1. Full name: Do Trung Kien 2. Sex: Male
3. Date of Birth: 23/09/1976 4. Place of Birth: Ha Tay
5. Admission decision number: 150, Dated: 06/07/2005
6. Changes in academic process:
7. Official thesis title: Design of Digital Signal Processing System in Radar
8. Major : Radio Physics and Electronics 9. Code: 62 44 03 01
10. Supervisors : Prof.Dr. Bach Gia Duong
Prof.Dr. Vu Anh Phi
11. Summary of the new findings of the thesis:
1. Signal generator:
- Simulations of Barker code, M code and LFM wave generators using Goldwave software and Matlab Simulink.
- Fabrication the PIC 16F877A circuits to generate the Barker sequences. The bit width is arbitrary and the minimum is 0.2 µs.
- Fabrication the BPSK modulator from Barker code to IF 10.3 MHz.
The microcontroller circuit is universal for many codes generation, archives the spectacular results that normal circuits cannot do.
2. Signal processing:
- Simulation: investigate Rmaxand SNR; using matched filter and ambiguity function to suggest a solution of improvement of radar resolution. Investigate PD and Pfa depend on SNR due to the pulse integration technique for five Swerling models; Design and simulate a pulse compression circuit for BPSK signal of Barker code and M code interlaced.
- Fabrication: FIR, IIR filters on TMS320C6416T 1GHz of Texas Instrument; high speed A/D, D/A modules connected to the DSP56307 EVM of Motorola.
The simulation results are necessary for calculations and fabrications. The hardware results include two parts: the universal filters with flexible changing in filter structures and specifications, and the high speed A/D, D/A converters for digital signal processing of high frequency signals using the commercial DSP board.
3. Receiver fabrication: local oscillator using the frequency synthesizer that the frequency can be easily change by the control of the microcontroller; UHF receiver with the specifications could be compare with commercial receivers. The frequency band is also easily adjust and the sensitivity is very high (-110 dBm).
Transmitter fabrication: with the support of simulation softwares like Ansoft, ADS for microtrip impedance matching calculations, investigation of the operation by spectrum analyzer, network analyzer. Two microwave power amplifiers: a module of output pulse power 90 W, and two stages module of 45 W, 90 W.
12. Practical applicability, if any :
With radar systems in Vietnam, it is essential to research and develop new modern radar systems using the modern electronics devices and techniques. The important distributions of these results mentioned above are shown clearly in two branches:
- The modules are small, flexible in design and fabrication and application; the specifications are better and almost can not be done by the older modules.
- Nowadays the needs of radar applications in military and civil in Vietnam are more and more increase both of complication and variety. Buying the aboard systems always face to two problems of price and non-suitable for the conditions of Vietnam. By that the own research and development is very meaningful.
13. Further research directions, if any:
- Continue to develop to specialized radar signal processing boards or ICs.
- Research of particular applications of given radar systems.
14. Thesis-related publications :
1. Đỗ Trung Kiên, Bạch Gia Dương, Trần Văn Tuấn (2006), “Nâng cao tỉ số tín hiệu/tạp, phạm vi phát hiện, độ phân giải của radar”, Hội nghị Vật lý toàn quốc 6 , 811-814.
2. Do Trung Kien, Vu Anh Phi, Bach Gia Duong (2006), “Design waveform generators and filters in radar system”, Journal of Science, Vietnam National University, XXII (2AP), 99-102.
3. Do Trung Kien, Than Thanh Anh Tuan, Vu Anh Phi, Bach Gia Duong (2006), “Radar digital filters using TMS320C6416T DSK”, Journal of Science, Vietnam National University, XXII (2AP), 103-109.
4. Do Trung Kien, Bach Gia Duong, Tran Thi Bich Hai (2006), “Estimation of radar detection and false alarm probability in the presence of noise”, 10th Biennial Vietnam Conference on Radio and Electronics REV2006, 231-235.
5. Bach Gia Duong, Vu Tuan Anh, Tran Quang Vinh, Do Trung Kien, Nguyen Tuan Anh (2006), “Research, design and fabrication of a digital signal processing system based on the technology DSP56307EVM with high speed A/D, D/A converter for radio navigation systems”, 10th Biennial Vietnam Conference on Radio and Electronics REV2006, 236-240.
6. Đỗ Trung Kiên, Thân Thanh Anh Tuấn, Phạm Văn Thành, Bạch Gia Dương (2007), “Bộ lọc số radar FIR/IIR xử lí thời gian thực sử dụng bo mạch TMS320C6416T DSK”, Hội nghị Khoa học Trường Đại học Sư phạm Hà nội 2, 57-58.
7. Do Trung Kien, Dang Thi Thanh Thuy, Le Viet Bang, Bach Gia Duong (2008), “Research, design and fabrication of a transmitter of phased-code pulse radar system”, IEEE International Conference on Research, Innovation and Vision for the Future RIVF’2008, 134-239.
8. Do Trung Kien, Bach Gia Duong (2008), “Design of Phase-Coded Transmitter and High Sensitive Receiver of Radar System”, 4th National Symposium on Research, Development and Application of Information and Communication Technology ICT.rda’08, 70-75.
9. Đỗ Trung Kiên, Bạch Gia Dương (2008), “Nghiên cứu kỹ thuật phát tín hiệu mã xen kẽ tìm kiếm các mục tiêu gần và xa trong hệ thống radar hiện đại”, 4th National Symposium on Research, Development and Application of Information and Communication Technology ICT.rda’08, 26-31.
10. Do Trung Kien, Nguyen Duc Thang, Bach Gia Duong (2008), “Radar Digital Filters Design with VHDL and FPGA”, Journal of Science, Vietnam National University, (24), 188-191.
11. Do Trung Kien, Bach Gia Duong (2008), “Simulation of Alternative Transmission of Barker Code and M-Code in Radar System to Detect Near and Far Targets”, Journal of Science, Vietnam National University, (24), 129-132.
12. Do Trung Kien, Bach Gia Duong, Nguyen Quy Thuong, Nguyen Manh Hung, “Design of Phase-Coded Transmitter and High Sensitive Receiver of Radar System”, Đã phản biện, chờ đăng tại Journal of Science, Vietnam National University, 2009.
Date : 07/04/2010
Signature :
Full name : Do Trung Kien
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