关键词: 超宽带脉冲无线电, 频谱利用率, 功率谱密度, 频谱模板

Abstract:

A new algorithm to design ultra-wideband pulse was presented to maximize the spectrum utilization efficiencies. ultra-wideband (UWB)pulse can be obtained by windowing the ideal UWB pulse and convolution. The pulse designed here not only was limited to time so as to reduce the multiple access interference but enhanced the spectrum utilization efficiency under the spectral mask constraint, which improved the transmission quality of a UWB system. Furthermore, a flexible and effective method for designing pulses satisfying arbitrary UWB frequency emission mask is provided in this algorithm.

Key words: ultra-wideband impulse radio, spectrum utilization efficiency, power spectral density, frequency mask