Astronomical integrated navigation system data communication and processing method

An integrated navigation system and data communication technology, which is applied in the field of navigation system data communication and processing, can solve the problems of no integrated navigation system data communication and data processing description, and achieve the effect of saving resources and ensuring synchronization accuracy

Active Publication Date: 2020-04-10
NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology

[0004] CN109799523A, 2019" only introduces the time synchronization method of the combined system, and does not describe the data communication and data processing of the combined navigation system
[0005] In the field of astronomical integrated navigation systems, the current public literature reports mainly focus on the algorithm design of astronomical integrated navigation systems, system error calibration, etc., and there are few reports on the system implementation of data synchronization, data communication, and data processing in astronomical integrated navigation systems

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  • Astronomical integrated navigation system data communication and processing method
  • Astronomical integrated navigation system data communication and processing method
  • Astronomical integrated navigation system data communication and processing method

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] The invention realizes the data communication and data processing of each unit module of the astronomical integrated navigation system through the FPGA.

[0036] Refer to the functional block diagram of data synchronization and data communication of the astronomical combination system figure 1 , FPGA receives the pulse-per-second synchronization signal (PPS) of the satellite navigation module (GNSS) as the system synchronization reference, and generates the synchronization signal SYN1 of the inertial navigation module (INS), the synchronization signal SYN2 of the celestial navigation module (CNS), and the synchronization signal SYN3 of the turntable , the FPGA receives each sensor data, processes the received data and sends it to the navigation processor, the navigation processor sends the data to be sent to the FPGA, and the FPGA sends the data ...

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Abstract

The invention provides an astronomical integrated navigation system data communication and processing method. Sampled data of different sensors are kept in whole-second alignment, data are synchronously collected, and data communication and data processing of all unit modules of the astronomical integrated navigation system are achieved through the FPGA.It is guaranteed that data communication between the navigation processor and each sensor module is real-time and accurate, the data communication state can be monitored, and long-time synchronization and accuracy are guaranteed. According to the invention, the synchronization accuracy of long-time work of the system is ensured.The state of each sensor module and the availability of data are monitored in real time, a basis is provided for subsequent high-precision integrated navigation.Navigation processor resources are saved.The read data is ensured to be complete and effective, data verification does not need to be conducted repeatedly, and certain fault-tolerant capacity of the astronomical integrated navigation system is provided.

Description

technical field [0001] The invention relates to the technical field of integrated navigation, in particular to a navigation system data communication and processing method, which realizes data communication and data processing of each unit module of the astronomical integrated navigation system through FPGA, which can be used for data communication and processing of the astronomical integrated navigation system, and can also be It provides reference for data communication and processing of other integrated navigation systems. Background technique [0002] The celestial integrated navigation system consists of an inertial navigation module (INS), a celestial navigation module (CNS), and a satellite navigation module (GNSS). The integrated navigation system composed of CNS, INS and GNSS has complementary advantages and can effectively improve the accuracy and reliability of the navigation system. It has become an important development direction of long-range and long-endurance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/02G01C21/16G01C21/00G01S19/45G01S19/47H04L1/00
CPCG01C21/02G01C21/165G01C21/005G01S19/45G01S19/47H04L1/0045H04L1/0041Y02D30/50
Inventor 王健吴江刘亚龙周磊翟永久
Owner NO 20 RES INST OF CHINA ELECTRONICS TECH GRP
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