本論文將呈現以連續波都卜勒雷達技術的穿戴式健康監測器，雷達架構主要為雙基形式雷達，其中包含自我注入鎖定振盪器之標籤電路以及注入鎖定振盪器之頻率解調單元，具有低複雜度、低功耗以及即時無線傳輸之特性，實現穿戴型裝置的健康監測。
在本論文的實驗中，自我注入振盪器之標籤電路的頻率操作於2.36 到2.484 GHz之間，其頻帶為醫學人體區域網路以及工業科學醫用頻段，首先將標籤電路固定於致動器上方之金屬板，致動器進行折返運動並量測其折返加速度，接著標籤電路將貼附於受測者胸腔，發射訊號偵測到由心肺活動和身體運動造成的胸腔起伏變化，並產生頻率調變，然後傳送至距離受測者三十公分處的具有注入鎖定振盪器之頻率解調單元，訊號經由天線接收和進行頻率解調，獲得與胸腔起伏變化相關的波形資訊。
最後基頻訊號進一步使用數位信號處理，並呈現心肺活動和身體運動之資訊於時頻譜圖上，本論文的實驗數據意味著利用單一雷達能結合心肺感測器、計步器以及無線傳輸之功能，於未來在穿戴式裝置上相當具有發展性。

This thesis presents wearable health monitors that are based on continuous-wave Doppler radar technology. To achieve low complexity, low power consumption and simultaneous wireless transmission of Doppler information, the radar architecture is bistatic with a self-injection-locked oscillator (SILO) tag and an injection-locked oscillator (ILO)-based frequency demodulator. In experiments with a prototype that was operated in the Medical Body Area Network (MBAN) and the Industrial Scientific and Medical (ISM) bands from 2.36 to 2.484 GHz, the actuator with a metal plate is used to perform a linear movement with adjustable displacement. First, the SILO tag is attached to the metal and measures the acceleration of actuator from forth to back,then the SILO tag is attached to the chest of a subject to transform the movement of the chest due to cardiopulmonary activity and body exercise into a transmitted frequency modulated wave.The ILO-based frequency demodulator, located 30 cm away from the subject, receives and processes this wave to yield the waveform that is associated with the movement of the chest. Following further digital signal processing, the cardiopulmonary activity and body exercise are displayed as time-frequency spectrograms.Promisingly, the experimental results that are presented in this thesis reveal that the proposed health monitor has high potential to integrate a cardiopulmonary sensor, a pedometer and a wireless transmission device on a single radar platform.

論文審定書 i
誌謝 ii
摘要 iii
Abstract iv
目錄 v
圖次 vii
表次 x
第一章 緒論 1
1.1 研究背景與動機 1
1.2 可攜式健康監測器 3
1.3 論文章節組織 10
第二章 胸戴式健康監測器設計理論 12
2.1 應用於健康監測器之自我注入鎖定理論 12
2.2 時頻分析原理 19
2.3 移動平均濾波器原理 21
第三章 胸戴式健康監測器實驗 24
3.1 胸戴式健康監測器電路 24
3.1.1 標籤電路設計 24
3.1.2 注入鎖定正交解調接收機 27
3.2 彈簧模型實驗 29
3.2.1 加速規實驗 29
3.2.2雷達彈簧模型架構 36
3.2.3加速規與雷達彈簧模型實驗之結果比較 42
3.3 健康監測實驗 44
3.3.1 運動行為 44
3.3.2 健康監測結果 45
第四章 結論 56
參考文獻 57

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