Performance Comparison of Sine and Cosine Phased BOC Signals Used for Radionavigation

Tripathi, Bhavna; Tulsian, Rahul; Jain, Rekha

doi:10.3182/20120213-3-in-4034.00042

Cited by 2 publications

(3 citation statements)

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“…where, 5(t) is the PSD of sine or cosine SOC and A is said to be the correlation loss due to band limiting to fr [2], i.e, the fraction of power remaining after band limiting to fro For limited bandwidth the peak value is lesser than that for infinite bandwidth; this reflects the fa ct that not all power is available in the signal. Part of the power is blocked by the bandlimiting.…”

Section: B Comparison Of Sine and Cosine Phased Boc Signalsmentioning

confidence: 99%

“…It was fo und that cosine phased BOC gives certain important advantages over sine phased BOC. It has been demonstrated in [2], that cosine phased BOC gives better performance in terms of (i) frequency offset from the centre of the band, (ii) code tracking accuracy and (iii) spectral separation in many cases, as compared to sine phased BOC.…”

Section: Iintroductionmentioning

confidence: 98%

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Comparison of coded-BOC and uncoded BOC modulation for radionavigation

Jain

Kaushik

2013

2013 International Conference on Signal Processing and Communication (Icsc)

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Modern global navigation satellite systems (GNSS) use Binary Offset Carrier (BOC) modulation to provide better spectral separation and code tracking accuracy, as compared to the BPSK modulation. In this paper, error control coding is combined with the BOC. These techniques primarily avoid interference by using modulation techniques that place energy at relatively vacant fr equency slots in the occupied radinavigation band. Two variations of BOC -Alt BOC and Coded BOC are presented. These techniques combine coding with BOC modulation without increasing bandwidth requirement. The coded -BOC modulation scheme improves the robustness of radio navigation signals against additive noise than the conventional uncoded BOC modulation scheme.

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Section: B Comparison Of Sine and Cosine Phased Boc Signalsmentioning

confidence: 99%

Section: Iintroductionmentioning

confidence: 98%

Comparison of coded-BOC and uncoded BOC modulation for radionavigation

Jain

Kaushik

2013

2013 International Conference on Signal Processing and Communication (Icsc)

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“…The Binary Offset Carrier (BOC) signal is used in the global navigation satellite system (GNSS) and is characterized by multiple peaks in its autocorrelation function and spectrum splitting [1][2][3]. By using a square wave to modulate again, the synchronization precision of the BOC signal is improved and the interference of the same-frequency signals is decreased [4].…”

Section: Introductionmentioning

confidence: 99%

A Detection Algorithm for the BOC Signal Based on Quadrature Channel Correlation

Qian

Zheng

Feng

2018

Journal of Electrical and Computer Engineering

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In order to solve the problem of detecting a BOC signal, which uses a long-period pseudo random sequence, an algorithm is presented based on quadrature channel correlation. The quadrature channel correlation method eliminates the autocorrelation component of the carrier wave, allowing for the extraction of the absolute autocorrelation peaks of the BOC sequence. If the same lag difference and height difference exist for the adjacent peaks, the BOC signal can be detected effectively using a statistical analysis of the multiple autocorrelation peaks. The simulation results show that the interference of the carrier wave component is eliminated and the autocorrelation peaks of the BOC sequence are obtained effectively without demodulation. The BOC signal can be detected effectively when the SNR is greater than −12 dB. The detection ability can be improved further by increasing the number of sampling points. The higher the ratio of the square wave subcarrier speed to the pseudo random sequence speed is, the greater the detection ability is with a lower SNR. The algorithm presented in this paper is superior to the algorithm based on the spectral correlation.

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Performance Comparison of Sine and Cosine Phased BOC Signals Used for Radionavigation

Cited by 2 publications

References 3 publications

Comparison of coded-BOC and uncoded BOC modulation for radionavigation

Comparison of coded-BOC and uncoded BOC modulation for radionavigation

A Detection Algorithm for the BOC Signal Based on Quadrature Channel Correlation

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