DS-UWB是一種短距離高傳輸速度的無線通訊科技。其擁有低傳輸信號功率、高duty cycle、資料調變使用脈波極性和PN coding多重導向等特性。本論文針對DS-UWB之基頻系統設計並建立了一個硬體量測暨FPGA雛型發展平台，其中包括傳送端之前訊號、調變與展頻、脈波整形，和接收端之去脈波整形、匹配濾波器、訊號偵測器、通道估測、耙式接收機、訊框起始符號偵測、和解調。本論文也將展示具體量測結果。

DS-UWB is a short distance and high transmitting rate wireless communication technology. It provides some features which are low transmitting power, high duty cycle, data modulation by pulse polarity, multi-access channelization by PN coding, and …etc. Here we discuss how to design a DS-UWB baseband system, and has successfully constructed the hardware measurement and FPGA development prototype system. The detailed items include the preamble prepend, mapping & spreading, and pulse shaping in the transmitter end, as well as de-pulse shaping, matched filter, signal detection, channel estimation, rake receiver, SFD detection, and de-mapping in the receiver end. And then, some measurement results are demonstrated in this thesis.

摘要 i
Abstract ii
目錄 iv
表目錄 v
圖目錄 vi
第一章 簡介 1
1.1 超寬頻(UWB)系統介紹 1
1.2 傳送資料格式 3
1.3 系統架構簡介 5
1.4 論文架構安排 6
第二章 傳送端設計 7
2.1 調變與展頻 7
2.2 脈波整形 8
第三章 接收端設計 12
3.1 去脈波整形 12
3.2 匹配濾波器 12
3.3 訊號偵測器 15
3.4 獲取和通道估測 20
3.5 相位抉擇和通道估測 20
3.6 耙式接收機 21
3.7 解調變 24
3.8 訊框起始符號偵測 24
3.9 MATLAB系統模擬 27
第四章 系統實作 31
4.1 FPGA雛型系統之硬體測試平台 31
4.2 通訊介面 34
4.3 基頻到射頻 35
第五章 結論 38
參考文獻 39
附錄 40
Xilinx FPGA[5] 41
Agilent Instruments[6] 43

[1]IEEE P802.15-04/0137r5, “DS-UWB Physical Layer Submission to 802.15 Task Group 3a,” September, 2005
[2]IEEE P802.15-02/368r5-SG3a, “Channel Modeling Sub-committee Report Final,” December, 2002
[3]Szu-Lin Su and Shuen-Chuan Yang, “Baseband Receiver Design for DS-UWB System,” 全國電信研討會, Taiwan, 2006.
[4]Eugene Grayver, Jean- Jean-François Frigon, Ahmed M. Eltawil, Alireza Tarighat, Kambiz Shoarinejad, Aliazam Abbasfar, Danijela ˇ Cabric´, and Babak Daneshrad, “Design and VLSI Implementation for a WCDMA Multipath Searcher,” IEEE Transactions on Vehicular Technology, vol. 54, No. 3, May 2005
[5]為希科技, http://www.ulinx.com.tw/
[6]Agilent Technologies, http://www.home.agilent.com/agilent/home.jspx