結論 - 5.8GHz 都卜勒雷達系統設計與整合

本論文研製一個 5.8GHz 都卜勒雷達系統的前端電路。包括 5.8GHz

壓控振盪器，輸出功率等於 8dBm ，相位雜訊為 -98dBc/Hz @100KHz 、

混波器的 (Total Loss) 為 15dB 、天線陣列的天線增益為 8dBi ，傾斜角度為

50 度，半功率波束為 40 度、中頻放大器將 (Phase Difference of 180°) 成功

轉換為單一訊號輸出，且將訊號箝位到時 (1.6V) 等，來完成此雷達系統,

最後用示波器和數位訊號處理器 (DSP) ，來偵測此收發機的特性，可以清

楚的接收到目標物所反彈回的都卜勒信號。

此雷達系統未來努力方向，是將天線陣列的半功率波束變窄、及將基

頻訊號轉換於顯示面板上，讓駕駛人得知正確速度。

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