High‐sensitive acquisition of signals for inter‐satellite links of navigation constellation. Issue 23 (1st November 2015)

• Record Type: Journal Article
• Authors: Tang, Yinyin; Wang, Yueke; Chen, Jianyun; Guo, Xiye
• Is Part Of: Electronics letters. Volume 51:Issue 23(2015)
• Page Start: 1879
• Page End: 1880
• Publication Date: 2015-11-01
• Subjects: satellite links -- satellite navigation -- signal detection -- Monte Carlo methods; high‐sensitive signal acquisition -- intersatellite links -- navigation constellation -- phase jump -- consecutive blocks -- carrier frequency -- direct accumulation problem -- compensation factor -- Monte Carlo simulation -- sensitivity improvement; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2015.2017
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : The method changing non‐coherent integration to coherent integration is proposed to increase the sensitivity of signal acquisition. A phase jump occurs between the consecutive blocks when the carrier frequency is circularly shifted and this leads to the problem of direct accumulation. A compensation factor is exploited to solve the problem. Monte Carlo simulation results show that the method can improve the sensitivity of acquiring weak signals.