在無線傳輸系統中，調變方式大致上可分為調幅、調頻、調相等三種方式，本論文中，我們提出一種調變方式，其概念類似調相，但我們用不同的方法去定義我們的訊號，使得我們的訊號易於接收。
我們在傳送端使用開關移鍵(On Off Keying)之電路，透過FPGA去控制起振訊號的輸入，然後於開關移鍵的電路中產生出類似相位移鍵(Phase Shift Keying)之訊號，再透過電感器將訊號發射；而在接收器透過放大電路將接收訊號放大後，將類比訊號轉數位訊號後經由FPGA去解碼。

The modulation techniques in wireless communication systems usually can be classified into three classes, namely amplitude modulation, frequency modulation and phase modulation. In this report we propose a new modulation technique it uses the same concept as the phase modulation but we use different technique, in stead of the conventional pulse shaping, to generate our transmitting signal to make it easy at the receiving side to detect the transmitted signal.
At the transmitter side it is through FPGA and uses an on-off keying circuit to control the input signal, it is then in the on-off circuit to generate a phase shift keying like signal and then it is transmitted through an inductor circuit. At the receiving terminal the received signal is amplified and converted into digital signal, it is then through the FPGA circuit to decode the transmitted signal.

目錄
第一章 緒論	1
1.1研究動機和目的	1
1.2研究方法	2
1.3各章節提要	2
第二章	系統概述	3
2.1 設計概念	3
2.2 傳送器	14
2.3 接收器	18
第三章	系統模擬	24
3.1 系統模擬電路	24
3.2 系統模擬波形	25
第四章 系統實測	31
4.1 系統工作流程	31
4.2 系統實測波形I	32
4.3 系統實測波形II	34
4.4 系統實測波形III	37
4.5 發射耗電流測量	39
第五章	結論與來展望	42
5.1 結論	42
5.2 未來展望	42
參考文獻	46

 
圖目錄
圖2.1 OOK發射電路架構	3
圖2.2 OOK發射電路中L1產生諧振波示意圖	4
圖2.3 電感器L1之諧振波T/2的時間點	5
圖2.4 當T/2時輸入脈衝後電感器L1發射波形	5
圖2.5 定義調變訊號1示意圖	6
圖2.6 定義參考訊號示意圖	7
圖2.7 電感繞線方向相反之OOK發射電路	8
圖2.8 OOK發射電路中L1’產生諧振波示意圖	9
圖2.9 電感器L1’之諧振波T/2的時間點	10
圖2.10 當T/2時輸入脈衝後電感器L1’發射波形	10
圖2.11 定義調變訊號0示意圖	11
圖2.12 訊號定義示意圖	12
圖2.13 解碼判斷方式示意圖	13
圖2.14 實際傳送之調變訊號波形示意圖	14
圖2.15 傳送器方塊圖	14
圖2.16 傳送器實體照片	15
圖2.17 傳送器發射電路架構圖	16
圖2.18 傳送端FPGA動作流程圖	17
圖2.19 回授電路架構圖	18
圖2.20 接收器方塊圖	18
圖2.21 接收器實體照片	19
圖2.22 接收器放大電路架構圖	20
圖2.23 接收器史密特電路架構圖	21
圖2.24 接收波形解碼示意圖	22
圖2.25 接收器流程圖	23
圖3.1 HSpice軟體模擬的發射電路架構圖	24
圖3.2 HSpice軟體模擬發射電路傳送資料1波形圖	25
圖3.3 HSpice軟體模擬的電感繞線方向顛倒之發射電路架構圖	26
圖3.4 HSpice軟體模擬發射電路傳送資料0波形圖	27
圖3.5 HSpice軟體模擬連續傳送兩個資料1訊號模擬圖	28
圖3.6 Hspice軟體模擬在傳送資料訊號後加入延遲之模擬圖	29
圖4.1實際傳送波形的示意圖	31
圖4.2符號的定義示意圖	32
圖4.3 傳送資料000之發射器輸入及接收器放大後之理想波形圖	33
圖4.4 傳送資料000之發射輸入脈衝測量波形	33
圖4.5 傳送資料000之接收器放大後波形與史密特電路輸出波形	34
圖4.6 傳送資料000之接收器史密特電路輸出波形與解碼輸出波形	34
圖4.7 傳送資料111之發射器輸入及接收器放大後之理想波形圖	35
圖4.8 傳送資料111之發射器輸入脈衝測量波形	35
圖4.9 傳送資料111之接收器放大後波形與史密特電路輸出波形	36
圖4.10 傳送資料111之史密特電路輸出波形與解碼輸出波形	36
圖4.11 傳送資料101之發射器輸入及接收器放大後之理想波形圖	37
圖4.12 傳送資料101之發射器輸入脈衝測量波形	38
圖4.13 傳送資料101之接收器放大後波形與史密特電路輸出波形	38
圖4.14 傳送資料101之接收器史密特電路輸出波形與解碼輸出波形	39
圖4.15 測量發射耗電流方法示意圖	40
圖4.16 示波器測量消耗電流實驗之電壓波形	41
圖5.1 使用兩種電壓控制發射器示意圖	43
圖5.2 加入調幅控制的調變訊號示意圖	44
圖5.3 使用多次改變相位的調變訊號示意圖	45

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