Unambiguous Tracking Method for Alternative Binary Offset Carrier Modulated Signals Based on Pseudo Correlation Function Technique

Zhou, Yue; Pan, Yongcai

doi:10.1109/lcomm.2014.2385076

Cited by 7 publications

(13 citation statements)

References 8 publications

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“…This section focuses on the performance of several representative constant-envelope FH-AltBOC signals in comparison with AltBOC signals. These signals are FH-AltBOC(24:1:1,1), FH-AltBOC(24:1:6,1), AltBOC(12,1), and AltBOC (15,10). AltBOC (15,10) has been adopted for the Galileo E5 signal [4].…”

Section: Performance Analysismentioning

confidence: 99%

“…These signals are FH-AltBOC(24:1:1,1), FH-AltBOC(24:1:6,1), AltBOC(12,1), and AltBOC (15,10). AltBOC (15,10) has been adopted for the Galileo E5 signal [4]. FH-AltBOC(24:1:1,1) has the same MLB as AltBOC (15,10), and its ZCNM is approximately equal to that of AltBOC (12,1); FH-AltBOC(24:1:6,1) has the same MLB and ZCNM as AltBOC (15,10).…”

Section: Performance Analysismentioning

confidence: 99%

“…AltBOC (15,10) has been adopted for the Galileo E5 signal [4]. FH-AltBOC(24:1:1,1) has the same MLB as AltBOC (15,10), and its ZCNM is approximately equal to that of AltBOC (12,1); FH-AltBOC(24:1:6,1) has the same MLB and ZCNM as AltBOC (15,10). Since FH-AltBOC(24:1:1,1), FH-AltBOC(24:1:6,1), and Alt-BOC (15,10) have the same MLB, they can be processed by receivers with the same front-end bandwidth, i.e., the same receiving complexity.…”

Section: Performance Analysismentioning

confidence: 99%

“…FH-AltBOC(24:1:1,1) has the same MLB as AltBOC (15,10), and its ZCNM is approximately equal to that of AltBOC (12,1); FH-AltBOC(24:1:6,1) has the same MLB and ZCNM as AltBOC (15,10). Since FH-AltBOC(24:1:1,1), FH-AltBOC(24:1:6,1), and Alt-BOC (15,10) have the same MLB, they can be processed by receivers with the same front-end bandwidth, i.e., the same receiving complexity. We discuss the properties of the ACFs and PSDs, the probabilities of false locking on ACF side peaks, the code tracking performance, and the antinarrowband interference and multipath performance for the example signals.…”

Section: Performance Analysismentioning

confidence: 99%

“…AltBOC modulation can combine up to four signal components and realize outstanding code tracking accuracy and antiinterference performance. However, for higher-order AltBOC modulation, the main drawback is the ambiguity in the code tracking due to the multiple side peaks of the autocorrelation function (ACF) [15]. The receiver may incorrectly lock onto one of these side peaks, causing intolerable measurement bias, this undesirable behavior limits the application of this modulation scheme in navigation systems.…”

Section: Introductionmentioning

confidence: 99%

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A Generalized Anti-Interference Low-Ambiguity Dual-Frequency Multiplexing Modulation Based on the Frequency-Hopping Technique

Yang

2020

IEEE Access

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To improve the anti-interference performance and mitigate the autocorrelation function (ACF) ambiguity of dual-frequency multiplexing modulation, we propose a new type of modulation: frequencyhopping alternated binary offset carrier (FH-AltBOC) modulation based on the frequency-hopping technique. The new modulation is generalized and includes AltBOC modulation, so it inherits the advantages of AltBOC modulation while also exhibiting new properties, such as low ambiguity, low probability of intercept, and better anti-narrowband interference and multipath performance. We first establish the mathematical model, derive the autocorrelation function (ACF) and the power spectrum density (PSD) for the FH-AltBOC modulation. Next, we propose optimal parameters and present a generation and detection scheme. The acquisition time and acquisition complexity of the receiving process for the proposed FH-AltBOC signal are the same as those of the AltBOC signal with the same main-lobe bandwidth (MLB). Finally, we evaluate the performance of several representative FH-AltBOC and AltBOC signals. The results show that FH-AltBOC(24:1:1,1) has the lowest ACF ambiguity, the best anti-interception, anti-narrowband interference, and multipath performance among the considered signals. FH-AltBOC(24:1:6,1) realizes higher tracking accuracy, lower ACF ambiguity, and better anti-narrowband interference and multipath performance than AltBOC(15,10). FH-AltBOC can serve as a new signal design paradigm for global navigation satellite systems (GNSS) and GNSS-like systems. INDEX TERMS Anti-interference, low-ambiguity, frequency-hopping alternated binary offset carrier (FH-AltBOC), satellite navigation.

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