無線射頻識別(Radio Frequency Identification, RFID)技術已經逐漸成熟，近年來許多關於使用RFID 來定位目標物的系統已經被提出，本論文根據干涉儀的定位方式，透過不同的基線長度，架設一個L 型的陣列天線，以完成來向角估測。
本論文透過IMPINJ 公司所開發的Speedway R420 讀取器，透過天線發送訊號，使目標標籤接收到訊號後再回傳訊號的相位，藉由相位等資訊，透過最小均方估計值(Minimum Means Square Estimate,MMSE)、卡爾曼濾波器(Kalman Filter)以及三通道干涉儀等進行相位校正，再利用L 型陣列天線以完成水平角和俯仰角的來向角估測。
本論文在無反射實驗室及真實的環境下進行測量，透過兩個不同的實驗場所
利用L 型陣列天線以完成水平角以及俯仰角的來向角估測。

Radio Frequency Identification (RFID) technology have gradually matured, and
many systems for locating objects using RFID have been proposed recently. In this
paper, based on the positioning method of the interferometer, an L-shaped array is set up through different baseline, to complete the estimation of the angle of arrival.
This paper uses the Speedway R420 reader developed by IMPINJ to send signals
through antennas, and the target tag receives the signal and then returns the phase of the signal. Through the phase and other information, the minimum mean square estimate(minimum average Square estimation, MMSE), Kalman filter (Kalman filter) and threechannel interferometer are used to correct the phase, and the horizontal angle and elevation angle are estimated with the L-shaped array antenna.
In this thesis, the measurement is conducted in a non-reflective laboratory and in a real-time environment. The L-shaped array antenna is utilized in different
experimental environments to complete horizontal and elevation angle estimations.
Keywords: Radio Frequency Identification (RFID)、Localization、Interferometer、
Angle of

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