An improved two-step time-parallel semi-bit method for GPS weak signal acquisition

Nezhadshahbodaghi, M.; Tabatabaei, Amir

doi:10.1016/j.aeue.2020.153240

Cited by 8 publications

(1 citation statement)

References 27 publications

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“…The advantage of this algorithm is that it is not affected by bit polarity flipping, but it is limited by the step size and approximation algorithm of subdivision frequency search, resulting in low accuracy of algorithm estimation values. Nezhadshahbodagi M et al proposed an improved two-step time parallel half bit capture method, which can increase the coherence integration length and improve capture sensitivity [5].…”

Section: Introductionmentioning

confidence: 99%

Multi-pulse joint acquisition algorithm

Peng,

Zhang,

Han

2024

Fourth International Conference on Digital Signal and Computer Communications (DSCC 2024)

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This paper investigates the impact of phase deviation between the transmitter and receiver on the correlation value when capturing in the GMSK modulation mode, and proposes a multi pulse joint capture algorithm that adds different phases to the captured pulse. This algorithm adds different phase offsets to multiple captured pulses during transmission based on the original GMSK related capture. At the same time, quantize the sampling signal of the receiver, fit a set of captured correlation values to the data, and find the phase shift position with the highest correlation value. And it is believed that this is the best capture point, further reducing the capture error during capture and improving the accuracy of capture time.

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Section: Introductionmentioning

confidence: 99%