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A Partial-Code Serial Search Algorithm for Improved Performance of C/A Code Acquisition
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- Authors
- Uzair Ahmad, Wan Sik Choi
- Issue Date
- 2009-07
- Citation
- International Symposium on Industrial Electronics (ISIE) 2009, pp.1417-1421
- Language
- English
- Type
- Conference Paper
- Project Code
- 08MC2900, Development of Indoor/Outdoor Seamless Positioning Technology, Wan Sik Choi
- Abstract
- Intelligent robotic navigation requires precise positioning information. The Global Navigation Satellite System (GNSS) enables such navigation by providing precise timing, velocity and positioning information to any adequately equipped receiver world-wide. A core capability of these receivers is to identify all visible satellites from a snapshot of received signal. This identification process, called signal acquisition, must be performed in shortest possible time in practical solutions. Conventionally search for the desired satellite in a serial fashion which involves large number of computations. Recently Fourier transform based methods were proposed to speed up the processing. However such a solution requires complex domain signal processing. We propose a partial-code serial search algorithm that significantly reduces the computational time with same reliability of acquisition results. ©2009 IEEE.
- KSP Keywords
- C/A code acquisition, Complex domain, Computational time, Robotic navigation, Search Algorithm(GSA), Signal Acquisition, Signal Processing, Speed-up, World-wide, fourier transform, global navigation satellite system(GNSS)