IEEE Conference on Ultra Wideband Systems and Technologies, 2003最新文献_第4页

Experimental evaluation of interference from UWB sources to a 5-GHz narrowband digital wireless transmission system UWB源对5ghz窄带数字无线传输系统干扰的实验评估

IEEE Conference on Ultra Wideband Systems and Technologies, 2003 Pub Date : 2003-11-16 DOI: 10.1109/UWBST.2003.1267892

A. Tomiki, T. Ogawa, T. Kobayashi

引用次数: 12

DS-CDMA: the modulation technology of choice for UWB communications DS-CDMA:超宽带通信的调制技术选择

IEEE Conference on Ultra Wideband Systems and Technologies, 2003 Pub Date : 2003-11-16 DOI: 10.1109/UWBST.2003.1267865

P. Runkle, J. McCorkle, T. Miller, M. Welborn

{"title":"DS-CDMA: the modulation technology of choice for UWB communications","authors":"P. Runkle, J. McCorkle, T. Miller, M. Welborn","doi":"10.1109/UWBST.2003.1267865","DOIUrl":"https://doi.org/10.1109/UWBST.2003.1267865","url":null,"abstract":"We show that because of drastic differences in the fading statistics between ultra wide bandwidth (UWB) multicarrier and direct sequence code division multiple access (DS-CDMA) approaches, DS easily scales to Gbps rates while multicarrier architectures have severe difficulty. Both DS-CDMA and orthogonal frequency division multiple access (OFDM) are well understood and proven modulation techniques in conventional (narrowband) commercial technologies (e.g. DS-CDMA in cell phones; OFDM in IEEE 802.11a/g). The maturity of these approaches, however, is vastly different when applied to ultrawideband (UWB) systems. Already implemented and operating in silicon, DS-CDMA architectures have proven to be the most mature and scaleable for UWB on both a theoretical as well as implementation basis. Among the proposed approaches before the IEEE 802.15.3a standards committee, the DS-CDMA transmitted waveform (which is the \"thing\" being standardized) is uniquely capable of serving the broadest diversity of applications. It can, for example, allow very low-cost low-power transmit-only devices (even at Gbps rates) because it requires no FFT or DAC or DSP. At the same time, receivers can incorporate varying degrees of DSP to provide scaleable power/cost versus performance. We present performance comparisons of DS-CDMA [Document IEEE.15-03/153r10, July 2003] vs. the proposed multiband MB-OFDM architecture [Document IEEE 802.15-03/267r0, July 2003] for outage range in a variety of multipath environments. Moreover, we describe how DS-CDMA UWB architectures can support robust and flexible multiuser capabilities, protect against in-band interference, and provide high-resolution ranging capabilities for safety-of-life applications.","PeriodicalId":218975,"journal":{"name":"IEEE Conference on Ultra Wideband Systems and Technologies, 2003","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114957324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 75

Development of a UWB GPR system for detecting small objects buried under ground 用于探测地下小物体的超宽带探地雷达系统研制

IEEE Conference on Ultra Wideband Systems and Technologies, 2003 Pub Date : 2003-11-16 DOI: 10.1109/UWBST.2003.1267869

Youngjin Park, Kwanho Kim, Sung-Bae Cho, Dong-Wook Yoo, Dong-Gi Youn, Young-Kyung Jeong

引用次数: 18

Commercialization of an ultra wideband precision asset location system 一种超宽带精确资产定位系统的商业化

IEEE Conference on Ultra Wideband Systems and Technologies, 2003 Pub Date : 2003-11-16 DOI: 10.1109/UWBST.2003.1267866

R. Fontana, E. Richley, J. Barney

引用次数: 280

NETEX TASK 1: measured effects of ultrawideband (UWB) emitters on existing narrowband military receivers NETEX任务1:测量超宽带(UWB)发射器对现有窄带军用接收机的影响

IEEE Conference on Ultra Wideband Systems and Technologies, 2003 Pub Date : 2003-11-16 DOI: 10.1109/UWBST.2003.1267793

A. Light

{"title":"NETEX TASK 1: measured effects of ultrawideband (UWB) emitters on existing narrowband military receivers","authors":"A. Light","doi":"10.1109/UWBST.2003.1267793","DOIUrl":"https://doi.org/10.1109/UWBST.2003.1267793","url":null,"abstract":"The goal of the Defense Advanced Research Projects Agency's (DARPA) Networking in Extreme Environments (NETEX) program is to create a wireless networking technology for the military user that enables robust connectivity in harsh environments and support its integration into new and emerging sensor and communication systems. Phase 1, resulted in a thorough understanding of the effects of ultrawideband (UWB) system operation on existing military spectrum users based on modeling, simulation, and measurements. In order to accomplish this task the DARPA Advanced Technology Office (ATO) procured a set of UWB emitters and broadband antennas to use as interference sources and contracted with the Naval Air Warfare Center Aircraft Division (NAWC AD) Electromagnetic Environmental Effects (E3) Division to provide candidate victim systems from the existing (legacy) US naval aircraft and shipboard inventory for testing. Testing was conducted on seventeen legacy systems during the period of October 2002 through March 2003. The purpose of this paper is to provide a brief overview of the results of these tests. This paper will provide a brief discussion of the UWB emissions as described by the US Federal Communications Commission (FCC) and describe the generic UWB emitter used for these tests. It will then provide a discussion of the results as they apply to the purpose of the NETEX program.","PeriodicalId":218975,"journal":{"name":"IEEE Conference on Ultra Wideband Systems and Technologies, 2003","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129388955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

UWB multiple access performance using time hopped pulse position modulation with biorthogonal signaling 采用双正交信号时跳脉冲位置调制的UWB多址性能

IEEE Conference on Ultra Wideband Systems and Technologies, 2003 Pub Date : 2003-11-16 DOI: 10.1109/UWBST.2003.1267858

Donald, Clabaugh, Michael A. Temple, R. Raines, C. M. Canadeo

引用次数: 14

Digital-carrier multi-band user codes for baseband UWB multiple access 基带UWB多址数字载波多带用户码

IEEE Conference on Ultra Wideband Systems and Technologies, 2003 Pub Date : 2003-11-16 DOI: 10.1109/UWBST.2003.1267859

Liuqing Yang, G. Giannakis

引用次数: 1

Assignment of spreading codes in DS-CDMA UWB systems DS-CDMA超宽带系统中扩频码的分配

IEEE Conference on Ultra Wideband Systems and Technologies, 2003 Pub Date : 2003-11-16 DOI: 10.1109/UWBST.2003.1267864

R.A. Jones, D.H. Smith, S. Perkins

引用次数: 3

Performance studies of an over-sampling multi-channel equalizer for a multi-band UWB system 多波段超宽带系统中过采样多通道均衡器的性能研究

IEEE Conference on Ultra Wideband Systems and Technologies, 2003 Pub Date : 2003-11-16 DOI: 10.1109/UWBST.2003.1267875

Xiaoming Peng, F. Chin, A. Madhukumar

引用次数: 6

A comparison between UWB and DSSS for use in a multiple access secure wireless sensor network UWB与DSSS在多址安全无线传感器网络中的比较

IEEE Conference on Ultra Wideband Systems and Technologies, 2003 Pub Date : 2003-11-16 DOI: 10.1109/UWBST.2003.1267878

Rodger Ziemer, Mark Wickert, Tom Williams

引用次数: 6