The SS communication is a system that the spectrum of signal is spreaded in a wide frequency band when transmitted, and is recovered by the correlation reception when received.

扩频通信是指在发送端将信号的频谱扩展到一个很宽的频带上，在接收端通过相关接收，将信号恢复到信息带宽的一种系统。

youdao

Ultra Wideband (UWB) system is an attractive high speed wireless communication scheme for short range communication. It transmits extremely short pulses, which occupy ultra wide band.

超宽带(uwb)通信通过传输能量极低的极短脉冲和占用超大带宽来完成短距离的高速通信。

youdao

Therefore, a single compact antenna that has an impedance bandwidth wide enough to cover the operating frequency bands of the multi-band wireless communication system is more desirable.

对于这种无线多频通信系统来说，具有紧凑结构并能覆盖这些通信频段的带宽的天线是人们所希望的。

youdao