Accurate Acquisition of High Order Double Binary Offset Carrier Signals for High Dynamic Environment

被引：3

作者：

Zhang Tianqi ^{[1
]}

Yuan Shuai ^{[1
]}

Liu Donghua ^{[1
]}

Li Qun ^{[1
]}

机构：

[1] Chongqing Univ Posts & Telecommun, Chongqing Key Lab Signal & Informat Proc, Chongqing 400065, Peoples R China

来源：

JOURNAL OF ELECTRONICS & INFORMATION TECHNOLOGY | 2018年 / 40卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Signal processing; High dynamic environment; Double Binary Offset Carrier (DBOC); Discrete Polynomial-phase Transform (DPT); Spectrum correction; Partial Matched Filtering-Fast Fourier Transform (PMF-FFT);

D O I：

10.11999/JEIT180087

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

For the problem of without accurate acquisition of Double Binary Offset Carrier (DBOC) modulated signal for high dynamic environment, a method which is based on Partial Matched Filtering (PMF) - Fast Fourier Transform (FFT) is proposed. According to the problem of low detection performance caused by the related loss and scallop loss, a new improved acquisition scheme is proposed. Firstly, the Discrete Polynomial phase Transform (DPT) is used to remove the high order dynamic term of the received signal, and then the PMF-FFT algorithm is redesigned for the DBOC signal. Finally, the spectrum correction method is used to correct the maximum power spectrum after FFT. Simulation results show that, under the same conditions, the proposed scheme improves the detection probability by about 2 dB, and shortens effectively the acquisition time.

引用

页码：2728 / 2735

页数：8

共 15 条

[1]

Betz J.W., 2001, NAVIG J I NAVIG, V48, P227

[2] AN ALGORITHM FOR MACHINE CALCULATION OF COMPLEX FOURIER SERIES [J].