Author: |
段文順 Thuan-Van Doan |
---|---|
Thesis Title: |
Array Antenna Design and DSP Algorithm for 77 GHz FMCW Radars Array Antenna Design and DSP Algorithm for 77 GHz FMCW Radars |
Advisor: |
楊成發
Chang-Fa Yang |
Committee: |
翟駿逸
Chun-Yi Chai 林文雄 Wen-Xiong Lin 鞠志遠 Chih-yuan Chu 劉馨勤 Hsin-Chin Liu 楊成發 Chang-Fa Yang |
Degree: |
碩士 Master |
Department: |
電資學院 - 電機工程系 Department of Electrical Engineering |
Thesis Publication Year: | 2018 |
Graduation Academic Year: | 106 |
Language: | 英文 |
Pages: | 77 |
Keywords (in Chinese): | 毫米波 、雷達系統 、串列式天線陣列 、數位訊號處理 、震動 |
Keywords (in other languages): | Millimeter Wave, Radar System, Series-fed Antenna Array, DSP, Vibration |
Reference times: | Clicks: 902 Downloads: 2 |
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由於震動在一些應用中是相當重要的, 本論文即探討77GHz FMCW 雷達之
天線設計以及數位訊號處理(DSP), 來使用非接觸方式偵測震動特性。在天線設
計部分, 本研究提出一款串列式饋入天線陣列,此天線的特點在於使用耦合饋
入之貼片天線設計,並採用中央饋入, 以改善一般串列式饋入天線陣列的窄頻
以及隨頻率波束偏移問題。在 DSP 的部分,乃在 TI AWR1642 EVM 版上進行演
算, 而本論文並且探討如何處理所接收 IF 訊號之相位, 來計算震動特性。
Vibration detections appear to be very crucial in some applications. Therefore, a
77GHz FMCW radar to remotely measure vibrations is introduced in this thesis, where
both the antenna design and DSP algorithm of the FMCW radar are studied. In the
antenna part, a single layer series-fed patch array with a bandwidth of 4GHz is designed.
This array is composed of the coupling-fed patch elements and fed at the center of the
array to cope with the narrow banwidth and beam-squinting with frequency in ordinary
series-fed patch arrays, repectively. In the DSP part, a TI AWR1642 EVM board is
applied to implement the signal processes. The procedure where phase information of
the IF signals in the FMCW radar corresponding to backscattered signals received by
Rx antennas is processed to determine vibrations is described.
[1] J.Q. Howell,” Microstrip antennas”, IEEE Antennas Propagat Soc Int Symp, 1972, pp. 177-180.
[2] S. D. Targonski, R. B. Waterhouse, and D. M. Pozar, “Wideband aperture coupled stacked patch antenna using thick substrates,” Electron. Lett., vol. 32, pp. 1941–1942, Oct. 1996
[3] S. Oh, S. Seo, M. Yoon, C. Oh, E. Kim, and Y. Kim, “A broadband microstrip antenna array for LMDS applications,” Microw. Opt. Lett., vol. 32, no. 1, pp. 35–37, Jan. 200
[4] M. Ramesh,” Design formula for inset fed microstrip patch antenna,” Journal of Microwaves and Optoelectronics, Vol. 3, N.o 3, December 2003.
[5] Warren L. Stutzman Gary A. Thiele, Antenna theory and design, Third edition, pp 471
[6] P. C. Strickland, M. Sc, Techniques for the synthesis of wideband, series-fed array of microstrip patch radiator, Department of electronics, Faculty of Engineering Curleton University Ottawa, Canada August 1989, p.6.
[7] J. D. Kraus, Antennas for all applications, third edition, pp 160
[8] C. L. Dolph, “A current distribution for broadside arrays which optimizes the relationship between beamwidth and side-lobe level,” in Proc. IRE, Jun. 1946, vol. 34, pp. 335–348.
[9] T. Yuan, N. Yuan, and L.W. Li, “A novel series-fed taper antenna array design,” IEEE Antennas and Wireless Propagation Letters, Vol. 7,2018
[10] D. M. Pozar, “Microstrip antennas,” Proc. IEEE, vol. 80, no. 1, pp. 79–91, Jan. 1992
[11] D. M. Pozar and B. Kaufman, “Increasing the bandwidth of a microstrip antenna by proximity coupling,” Electron. Lett., vol. 23, no. 8, pp. 368–369, Apr. 1987
[12] G. Kumar and K. P. Ray, Broadband microstrip antennas, Boston, MA, USA: Artech House, 2003.
[13] W. S. T. Rowe and R. B. Waterhouse, “Investigation into the performance of proximity coupled stacked patches,” IEEE Trans. antennas propag., vol. 54, no. 6, pp. 1693–1698, Jun. 2006
[14] C. Chen, A. Tulintseff, and R. Sorbello, “Broadband two-layer microstrip antenna,” in Proc. IEEE Antennas Propag. Soc. Int. Symp., Boston, MA,USA, Jun. 1984, pp. 251–252
[15] J. D. Zhang, L. Zhu, Q.S Wu, N.W Liu, and W. Wu, “A compact microstrip-fed patch antenna with enhanced bandwidth and harmonic suppression,” IEEE Transactions on antennas and propagation, Vol.64, No.12, December 2016.
[16] https://en.wikipedia.org/wiki/Electromagnetic_spectrum
[17] V. Dham, Programming chirp parameters in TI radar devices, Application Report, May 2017, pp2.
[18] S. Rao, Introduction to mmwave sensing: FMCW Radars, Texas Instrument, pp6.
[19] Texas Instrument, MMWAVE SDK user guide, Version 1, May 2, 2017, pp 20
[20] https://gregstoll.dyndns.org/~gregstoll/floattohex/