地面移动基站增强的CAPS广义延拓差分定位方法

doi:10.3969/j.issn.1001-2400.2013.01.023

Abstract

Abstract:

This paper proposes a pseudo-range differential positioning method based on the existing mobile phone base stations to improve the point positioning accuracy in the Chinese Area Positioning System (CAPS). The interpolation data for pseudo-range error correction in the generalized extended interpolation model are derived from the pseudo-range error value from several base stations to obtain the measuring point of the corrected pseudo-range error, and those data will be broadcasted to the user for pseudo-range differential correction. Simulations indicate that this method can overcome the fall in accuracy caused by the increase in base line length in conventional pseudo-range differential correction. The combination of the CAPS system and mobile phone base stations can effectively utilize the existing resources in mobile phone base stations. Moreover, it can also significantly improve the positioning accuracy of the CAPS.

Key words: pseudo-range differential positioning, generalized extended interpolation model, mobile phone base stations, Chinese area positioning system, error correction

DU Xiaohui;SHI Huli;PEI Jun. Generalized extended differential positioning method for CAPS augmented by mobile phone base stations[J].J4, 2013, 40(1): 129-134.

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Generalized extended differential positioning method for CAPS augmented by mobile phone base stations

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