超宽带系统的功率谱密度限制问题研究

doi:10.3969/j.issn.1000-0801.2011.02.007

Abstract

Abstract:

The current UWB systems for civilian applications must satisfy the power spectral density limit, which greatly restrict the communications distance and communications rate of UWB systems, and the electromagnetic compatibility of UWB signals is hard to be guaranteed. Hence, UWB systems can not achieve extended applications. Aiming at this problem, this paper has provided four potential application strategies for EUWB（extended UWB）systems without satisfying the power spectral density limit, and their advantages and disadvantages are discussed. The research can offer a new way for the future development and application of UWB technology.

Key words: UWB, power spectral density limit, communication distance, communication rate, electromagnetic compatibility

Liang Zhao,Shuangping Liu,Liang Jin,Jinyu Chen. Research on the Power Spectral Density Limit in UWB Systems[J]. Telecommunications Science, 2011, 27(2): 34-39.

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References 26

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频率范围（MHz）	功率谱密度限制（dBm/MHz）
频率范围（MHz）	成像应用（低频段）	成像应用（中频段）	成像应用（高频段）	室内应用	室外应用	车载雷达
960～1 610	-65.3	-53.3	-65.3	-75.3	-75.3	-75.3
1610～1990	-53.3	-51.3	-53.3	-53.3	-63.3	-61.3
1990～3100	-51.3	-41.3	-51.3	-51.3	-61.3	-61.3
3100～10600	-51.3	-41.3	-41.3	-41.3	-41.3	-61.3
10600～22000	-51.3	-51.3	-51.3	-51.3	-61.3	-61.3
22000～29000	-51.3	-51.3	-51.3	-51.3	-61.3	-61.3
＞29000	-51.3	-51.3	-51.3	-51.3	-61.3	-51.3

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Research on the Power Spectral Density Limit in UWB Systems

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