【摘要】 通过频域的方法对UWB的信号进行分析,可以看到它们的功率谱中都存在着离散谱线。通过仿真分析表明,由于离散谱线导致了UWB功率谱的不平坦,使得UWB对不同中心频点的GSM信号的抗干扰能力差别很大,适当地对UWB所传输的数据和扩频码进行编码和优化可以平滑其功率谱线,从而提高UWB对GSM的抗干扰性能。更多还原

【Abstract】 The UWB signals are analyzed in the frequency domain, which shows that there exist discrete spectral lines in the PSD of UWB which lead to the unevenness of PSD. Simulations show that the performance of UWB varies greatly in the presence of GSM with difference center frequency and proper encoding and that optimization of the data and spead-spectrum code can smooth the power spectrum and thus improve the performance of UWB against GSM.更多还原