Material Engineering and Mechanical Manufacturing

Unambiguous acquisition technique for BOC(m, n) modulated signals

  • ZHANG Honglun ,
  • BA Xiaohui ,
  • CHEN Jie ,
  • ZHOU Hang
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  • 1. Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2016-05-03

  Revised date: 2016-06-14

  Online published: 2016-06-20

Supported by

National Natural Science Foundation of China (61376027)

Abstract

Multiple peaks of autocorrelation function of binary offset carrier (BOC) modulated signal can lead to ambiguity of signal acquisition. To solve the problem, a correlation multiplication side-peak cancellation technique (CMSCT) is proposed. Based on the special property of sub-correlation function of BOC signal, side peaks can be removed by multiplying different sub-correlation functions. Corresponding modified algorithm is presented for the purpose of taking full advantage of all received data to improve the acquisition performance. The complexity of the proposed algorithm as well as its detection probability based on the constant false alarm rate criterion are analyzed and compared with other algorithms. The result of using CMSCT for intermediate frequency sampling signal of Galileo E1C shows that the presented technique can effectively solve the problem of ambiguous acquisition.

Cite this article

ZHANG Honglun , BA Xiaohui , CHEN Jie , ZHOU Hang . Unambiguous acquisition technique for BOC(m, n) modulated signals[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017 , 38(4) : 320394 -320394 . DOI: 10.7527/S1000-6893.2016.0194

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