Test platform being compatible with GNSS signal processing algorithm

Abstract

The invention discloses a testing platform compatible with GNSS signal processing arithmetic comprising a GPS signal receiving antenna, a GPS satellite radio-frequency collecting front end and an universal PC. On the universal PC, a GPS mid-frequency signal generating module, a BOC mid-frequency signal generating module, a mid-frequency signal processing module and a user interface are installed.In the user interface, the operation modes, arithmetic can be selected, arithmetic parameters can be set, and the processing results can be observed; new signal processing arithmetic can be inserted into the testing platform to test the performance of the new arithmetic. The testing platform enables a user to analyze the performance of an arithmetic in view of the GNSS receiver as a whole, so as to reduce the lead time, cost and risk for a new product, and provides an effective reference for the research of novel receivers.

Description

technical field [0001] The invention relates to a test platform compatible with GNSS signal processing algorithms. The platform can realize the reception and processing of L1 frequency band signals of GPS satellites and the processing of simulated GPS and BOC intermediate frequency signals, and can select different processing algorithms and analyze the processing performance of the algorithms. Background technique [0002] With the development of GNSS (Global Navigation Satellite System) industry, software GNSS receivers have become a research hotspot at home and abroad. The software receiver can not only realize the same functions as the hardware receiver, but more importantly, it has high flexibility, scalability and good compatibility, which can effectively reduce the development cost and shorten the development cycle. Software receiver design has played an important role in the GPS industry. [0003] Most of the existing GNSS software receivers in China only implement s...

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Problems solved by technology

[0003] Most of the existing GNSS software receivers in China only implement software processing in the tracking loop and navigation calculation part, while the baseband processing is still implemented by hardware such as ASICs and OEM boards, and there is still a lack of complete software implementation from the baseband Software GNSS receiver for all IF signal processing to navigation solution

In addition, our country lacks products with independent intellectual property rights and core technologies in the research of the navigation industry. The main reason is that domestic GNSS researchers lack a complete GNSS signal algorithm verification platform and cannot analyze the performance of the algorithm from the GNSS receiver as a whole. ; If the hardware receiver is used to verify the algorithm, the cost is high and the cycle is long, which greatly increases the risk of research and development

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