Modified Chirp Waveforms-Based OCC-UWB System With Multiple Interferences Suppression

Modified Chirp Waveforms-Based OCC-UWB System With Multiple Interferences Suppression
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具有多重干扰抑制功能的基于改进线性调频脉冲波形的 OCC-UWB 系统

DOI:
10.1109/jsyst.2016.2535464
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发表时间:
2018-03
影响因子:
4.4
通讯作者:
白智全
白智全
中科院分区:
计算机科学2区
文献类型:
--
作者:
白智全

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为了提高超宽带(UWB)系统对无线个域网(WPAN)中存在的窄带干扰(NBI)、多址干扰(MAI)和多径干扰(MI)等多种干扰的抵抗能力,提出了一种基于正交互补码(OCC)的改进线性调频超宽带(UWB)系统。考虑到啁啾函数的时频特性和窄带干扰抑制原理,本文首先提出了基于线性和非线性啁啾函数的柔性超宽带脉冲抑制多个窄带干扰。在此基础上,提出了一种改进的基于线性调频的超宽带系统,并结合OCC扩频调制技术,有效地抑制了多址干扰和多址干扰的影响。
To improve the performance of the ultra-wideband (UWB) system against multiple interferences existed in wireless personal area network (WPAN), such as narrowband interference (NBI), multiple-access interference (MAI), and multipath interference (MI), we present an orthogonal complementary code (OCC)-based UWB system with modified chirp waveforms. Considering the time–frequency characteristics of the chirp functions and the principle of NBI suppression, we first propose the modified linear and nonlinear chirp function-based flexible UWB pulses to suppress the multiple NBIs. Furthermore, with the implementation of OCC spread modulation, the modified chirp waveform-based UWB system is presented to effectively alleviate the influence of the MAI and MI.
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