Multiple adaptive pulse waveform design

被引：0
|
作者：
Guo L. [1 ]
Zhao B. [1 ]
机构：
[1] College of Information and Communication Engineering, Harbin Engineering University
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2011年 / 32卷 / 06期
关键词：
Adaptive pulse waveform; Cognitive ultra wide band; Multiband; Prolate spheroidal wave functions;
D O I：
10.3969/j.issn.1006-7043.2011.06.022
中图分类号：
学科分类号：
摘要：
In order to solve the problem of interference between an ultra-wide band system and existing communication systems, a multiple adaptive pulse based on finite prolate spheroidal wave functions was proposed. The system first sensed the spectrum environment, estimated the interference temperature, and searched the available band. Then it divided the available band into multiple sub-bands and generated an adaptive emission mask using the idea of OFDM for reference. It also system-designed the sub-band pulse using finite prolate spheroidal wave functions. Finally sub-band pulses were weighted and combined in a time domain to produce a new multiple adaptive pulse that could be seamlessly modified. This pulse can achieve more than 85% of spectrum utilization efficiency under the FCC emission mask and has strong flexibility and anti-jamming capabilities, as well as being able to achieve the seamless modification of launch waveform to adapt to the wireless environment.
引用
收藏
页码：825 / 829
页数：4
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