求翻译：首先介绍了超宽带(UWB)技术的发展，然后分析了它应用于无线通信系统的性能特点，包括信号调制方式、多径传播、传输速率、接收机设计、与其它无线设备兼容和共存性等方面，最后展望了它的发展趋势和进一步研究的课题。是什么意思？

First introduced the Ultra-Wideband (uwb) technology development and then apply it to the performance characteristics of the wireless communication systems, including signal modulation, multipath propagation, transmission rate, receiver design, and other wireless devices, compatibility and coexisten

First introduced the ultra-wide band (UWB) technology development, and then analyze it to a wireless communications system performance characteristics, including a signal modulation methods, multi-path propagation, transmission rate, receiver design, and other wireless devices such as compatible and

First introduced the ultra-wide band (UWB) technology development, then analyzed it to apply in the wireless communications system performance characteristic, including signal modulation way, multipath propagation, transmission speed, receiver design, with other radio equipment reps compatible and a

First introduced the ultra-wideband (UWB) technology development and analysis of its application in wireless communication system performance characteristics, including modulation, multipath propagation, transmission rate, receiver design, compatibility, and coexistence with other wireless devices,

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