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中文摘要：
在FCC模板和ECC模板的基础上,分析了室内环境下UWB设备对IEEE802.11a WLAN系统的电磁干扰。在IEEE802.11a系统性能恶化1dB的情况下,使用双线模型分别计算出室内环境下单个UWB设备和多个UWB设备的发射功率限制。分析结果表明,对于IEEE802.11a WLAN来说,距离最近的UWB干扰是最主要的干扰,建议以36cm的最小隔离距离为基础来限制5GHz频段处的UWB发射功率。因此ECC模板更能满足IEEE802.11a的电磁兼容要求,而FCC模板能否保证有待进一步研究。
英文摘要：
According to current FCC and ECC regulations, the electromagnetic interference from UWB devices to IEEE 802.11 a WLAN system in indoor environments has been studied. Assuming an SINR degradation of 1 dB, the maximum possible UWB transmissions density for single UWB device and multiple UWB devices were calculated based on the two-slope propagation model. The analysis results show that the closest UWB device is the primary interference source for the IEEE 802.11 a device, so the emission limits from UWB devices should be established on the basis of 36 centimeter distance. The analysis results also show that ECC regulation is better than FCC regulation.
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