基于PXI射频测试平台的多模卫星信号模拟器

doi:10.3969/j.issn.1001-2400.2013.01.031

Abstract

Abstract:

A multi-mode GNSS signal simulator, which is capable of simulating GPS L1, GLONASS L1, Beidou1, Beidou2 B1 and B3 signals, has been developed based on the NI PXI RF Test Hardware Platform. Technologies such as satellite navigation, software radio have been applied in the development process. DDS-based IF signal synthesis and three-stage up-converting methods have been chosen for simulated signal generation. Its software composition and execution efficiency optimization by hybrid programming and multi-threading are especially discussed. Simulated signals have been verified by off-the-shelf GNSS receivers.

Key words: GNSS signal simulator, multi-mode, PXI, GPS, GLONASS, Compass

CLC Number:

TP337

HOU Bo;LIU Guangbin. Design and implementation of a multi-mode GNSS signal simulator on the PXI RF test platform[J].J4, 2013, 40(1): 183-188.

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Design and implementation of a multi-mode GNSS signal simulator on the PXI RF test platform

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