Software-and-hardware integrated satellite navigation signal processing method

Abstract

The invention relates to a software-and-hardware integrated satellite navigation signal processing method. The method comprises the following steps of: (1), receiving data from two sources including asource containing intermediate frequency data collected by a receiving antenna and a radio frequency front end and a source containing data inputted by a data input module; (2), inputting the collected intermediate frequency data into a hardware correlator or a software correlator for related processing; (3), designing a single-channel correlator for each satellite signal, driving the hardware correlator by a clock signal, driving the software correlator by a logic clock signal, and enabling the mathematical models of the hardware correlator and the software correlator to be consistent and tohave the same functions; and (4), inputting a result of the correlator into a subsequent baseband processing and navigation resolving module, and adopting an HAL design for a baseband processing andnavigation resolving program to enable a receiving algorithm designed based on a software receiver to be directly transplanted to a hardware receiver module. According to the invention, the foundationis provided for direct application of a receiving algorithm result researched and developed based on a software receiver to a hardware receiver.

Description

technical field [0001] The invention relates to a satellite navigation signal processing method integrating software and hardware, belonging to the technical field of satellite navigation. Background technique [0002] The Global Navigation Satellite System (GNSS), typically represented by the Beidou Satellite Navigation System (BDS) and the Global Positioning System (GPS), has been widely used in the fields of national economy and national defense. application, resulting in huge economic benefits. The GNSS system is mainly composed of satellite constellations, space transmission links, user receivers and ground measurement and control stations, among which the user receiver is related to users. Therefore, the design and development of high-performance user receivers has always been the most active and important direction in the GNSS field. [0003] Commercial GNSS receivers are hardware receivers based on microprocessor chips. The hardware receivers are composed of RF fro...

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Problems solved by technology

[0007] The technical problem of the present invention is to overcome the difficulty that the receiving algorithm developed based on the software receiver is difficult to quickly realize the conversion to the hardware, and provide a satellite navigation signal processing method integrating software and hardware, which is convenient for the research and development of the receiving algorithm. Development, and the receiving algorithm that is convenient for research and development can be quickly implemented in the hardware receiver, which is conducive to the rapid engineering application of the receiving algorithm developed

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