A new acquisition method based on differential correlation

Shang, Sujuan; Hu, Yanjun; Luo, Jufeng; Wang, Yingguan

doi:10.1109/iccsn.2016.7586647

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…In these methods, a windowing technique is adopted for frame acquisition, where coherent integration is performed over a sub‐section of the transmitted synchronisation sequence and the residual integration is then performed after detection. Another efficient coarse frame acquisition scheme based on differential correlation is proposed in the literature [14–19]. In this method, the received signal as well as the reference preamble are modified by multiplying them with a delayed conjugate copy before the correlation process.…”

Section: Introductionmentioning

confidence: 99%

Statistical characterisation and analysis of differential correlation‐based frame detector

Akhlaq

Ansari²,

Lechner

et al. 2019

IET Communications

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Section: Introductionmentioning

confidence: 99%

Statistical characterisation and analysis of differential correlation‐based frame detector

Akhlaq

Ansari²,

Lechner

et al. 2019

IET Communications

View full text Add to dashboard Cite

Multi-Peak Double-Dwell GPS Weak Signal Acquisition Method and VLSI Implementation for Energy-Constrained Applications

et al. 2018

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Power consumption of Global Positioning System (GPS) acquisition is a great challenge for energy-constrained applications. In this work, a metric named acquisition mean computation overhead is proposed to measure the energy cost. A novel multi-peak double-dwell (MP/DD) acquisition method for GPS weak signal is proposed. It adopts multi-peak correlation results as candidates in the first acquisition dwell and selects the largest one as the final acquisition result in the second acquisition dwell. Theoretical analysis and numerical simulation are presented in detail. Meanwhile, the very-large-scale integration (VLSI) implementation of coarse-and fine-grained acquisition engines applied to the proposed method is done. The detection probability and acquisition mean computation overhead are simulated using the Monte-Carlo method, and its mean acquisition power is tested with an actual chip. We fabricated the GPS signal acquisition engine with a 40 nm complementary metal oxide semiconductor (CMOS) process. The simulation results demonstrate that detection probability is promoted from 18% to 67% when signal power is equal to 23 dB/Hz. The acquisition mean computation overhead is reduced greatly by 64%. Measurement results show that the energy consumption of this design is only 21.5% of the conventional double-dwell/maximum (DD/MAX) method.

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A new acquisition method based on differential correlation

Cited by 2 publications

References 6 publications

Statistical characterisation and analysis of differential correlation‐based frame detector

Statistical characterisation and analysis of differential correlation‐based frame detector

Multi-Peak Double-Dwell GPS Weak Signal Acquisition Method and VLSI Implementation for Energy-Constrained Applications

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