Low complexity acquisition algorithm for GPS signals with low SNR and high dynamic

Zhu-lin XIONG; Ce-lun LIU; Jian-ping AN; Ze-bin XIE

doi:10.11959/j.issn.1000-436x.2015080

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Low complexity acquisition algorithm for GPS signals with low SNR and high dynamic

Academic paper | 更新时间：2024-06-05

- Low complexity acquisition algorithm for GPS signals with low SNR and high dynamic
- Journal of Communications Vol. 36, Issue 3, Pages: 240-245(2015)
- 作者机构：
  
  北京理工大学信息与电子学院，北京 100081
- 作者简介：
- 基金信息：
  
  The National High Technology Research and Development Program of China (863 Program)(2012AA01A505);The National Natural Science Foundation of China(61271258)
- DOI：10.11959/j.issn.1000-436x.2015080
  CLC： P228.4
- Online First：2015-03，
  
  Published：25 March 2015
- 稿件说明：
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Zhu-lin XIONG, Ce-lun LIU, Jian-ping AN, et al. Low complexity acquisition algorithm for GPS signals with low SNR and high dynamic[J]. Journal of Communications, 2015, 36(3): 240-245.
DOI：

Zhu-lin XIONG, Ce-lun LIU, Jian-ping AN, et al. Low complexity acquisition algorithm for GPS signals with low SNR and high dynamic[J]. Journal of Communications, 2015, 36(3): 240-245. DOI： 10.11959/j.issn.1000-436x.2015080.

摘要

针对高动态低信噪比环境下的GPS信号捕获问题，提出一种频域分段移位平均周期图算法。首先，对接收信号进行频率斜升和码相位二维并行粗补偿并对各补偿支路进行分段快速傅里叶变换；其次，根据参与捕获的有效数据段长度将频域补偿间隔扩展为更为精细的估计间隔；然后，找到与各参数估计值最接近的补偿支路，根据估计值与实际补偿值之间差值对各数据段的频谱进行旋转移位，并将移位之后的频谱进行非相干累加以得到各估计值所对应的相关峰；最后，对相关峰的峰值进行恒虚警检测以确定捕获是否成功。仿真结果表明，与平均周期图算法相比，所提算法捕获性能略有下降，但计算复杂度大幅降低。

Abstract

A frequency-domain segmental shift average periodogram acquisition algorithm for GPS signals with low SNR and high dynamic was proposed. First

the parallel rough compensation of Doppler frequency rate and C/A code phase as well as segmental FFT was applied with the received signal. Second

the compensation interval was extended to precise estimation interval based on the number of data segments. Third

the branch with the nearest compensation value was chosen as the estimation branch of each estimation value and the difference of two values was reduced by segmental fre-quency spectrum shift. The correlation value of each estimation branch was obtained by non-coherent accumulation of all shifted frequency spectrums. Last

the maximum correlation value was sent to a constant false alarm rate detector to de-termine whether the acquisition was success. The results show that compared with the traditional periodogram algorithm

the proposed algorithm has much lower computational complexity and a little performance loss.

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references

HURD W J , STATMAN J I , VILNROTTER V A . High dynamic GPS receiver using maximum likelihood estimation and frequency tracking [J ] . IEEE Transactions on Aerospace and Electronic Systems , 1987 , 23 ( 4 ): 425 - 437 .

FARQUHARSON M , O'SHEA P , LEDWICH G . A computationally efficient technique for estimating the parameters of polynomial-phase signals from noisy observations [J ] . IEEE Transactions on Signal Processing , 2005 , 53 ( 8 ): 3337 - 3342 .

CIRILLO L , ZOUBIR A , AMIN M . Parameter estimation for locally linear fm signals using a time-frequency hough transform [J ] . IEEE Transactions on Signal Processing , 2008 , 56 ( 9 ): 4162 - 4175 .

AKOPIAN D , SYRJARINNE J . A fast positioning method without navigation data decoding for assisted gps receivers [J ] . IEEE Transactions on Vehicular Technology , 2009 , 58 ( 8 ): 4640 - 4645 .

黄磊，张其善，寇艳红．基于差分码和块处理方法的GPS信号快速捕获算法 [J ] ．通信学报， 2006 , 27 ( 8 ): 93 - 97 .

HUANG L , ZHANG Q S , KOU Y H . GPS signal fast acquisition al-gorithm using differential code and block processing techniques [J ] . Journal on Communications , 2006 , 27 ( 8 ): 93 - 97 .

ZHU Z . Averaging Correlation for Weak Global Positioning System Signal Processing [D ] . Ohio University , 2002 .

蒋伟，乐天．基于插值的多普勒频偏和频率斜升联合估计算法 [J ] ．电子与信息学报， 2013 , 35 ( 1 ): 166 - 171 .

JIANG W , LE T . Joint estimation of doppler frequency shift and dop-pler frequency rate based on interpolation [J ] . Journal of Electronics ＆Information Technology , 2013 , 35 ( 1 ): 166 - 171 .

PRATAP M , PER E . Global Positioning System: Signals, Measure-ments, and Performance [M ] . Revised 2nd ed , Ganga-Jamuna Press , 2011 .

ALI I , AL-DHAHIR N , HERSHEY J E . Doppler characterization for LEO satellites [J ] . IEEE Transactions on Communications , 1998 , 46 ( 3 ): 309 - 313 .

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