本論文以連續波雷達原理研製兩款24-GHz雷達感測器，分別應用於實驗小鼠生理訊號及人體方位角偵測。感測器皆包含射頻電路、基頻電路以及數位訊號處理，其雷達系統架構設計、實現方式與量測結果皆於本論文中詳細討論。在應用於量測實驗小鼠生理訊號中，本論文首先對時域訊號進行直流準位校準與相位解調變處理，並使用快速傅立葉轉換將時域訊號轉換為頻域訊號觀察不同健康程度實驗小鼠之波形，實驗結果初步能以頻譜訊號成份分別出不同的健康程度。而應用於量測人體方位角中，本論文使用180°耦合器將接收之訊號分成和與差訊號，使用差動放大器整合差動訊號並根據相位解調變得到的相位計算待測物與天線之相對方位角，由實驗結果可得知，量測人體參考方位角+−30°內的誤差為−3.51°至+4.51°。

This thesis presents two 24-GHz continuous wave (CW) radar sensors to detect vital signs of laboratory mice and the azimuth angle of human target. The developed radar sensors include radio frequency circuits, baseband circuits, and digital signal processing. For sensing vital signs of laboratory mice, the DC offset calibration and phase demodulation are performed to obtain time-domain signals. Then the fast Fourier transform (FFT) is used to convert the time-domain signals into the frequency-domain signals. According to the components of the frequency spectrum, the different physiological conditions of laboratory mice can be classified by experimental results. For the other application, the radar configuration is modified to the monopulse radar system. It is implemented by a 1T2R transceiver chip with a 180° coupler to measure the azimuth angle of human target. The differential amplifiers are used to transfer the differential signals of the sum and difference ports into single-end signals. Then phase demodulation results are employed to calculate the azimuth angle in the range of+-30°, the measurement error is within the range of −3.51° to +4.51° as compared with the theoretical values.

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