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.

[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