Dual-system clock synchronization processing method based on periodic pulse reference
A periodic pulse and clock synchronization technology, applied in the direction of navigation through speed/acceleration measurement, navigation calculation tools, etc., can solve the problem of poor calculation results of integrated navigation, to avoid poor calculation results, improve reliability, The effect of reducing resource usage
Active Publication Date: 2019-12-10
HUNAN AEROSPACE ELECTROMECHANICAL EQUIP & SPECIAL MATERIAL INST
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[0004]Aiming at the problem in the prior art that the dual-system clock references are not synchronized, resulting in poor integrated navigation solution results, the present invention provides a dual-system based on periodic pulse reference The system clock synchronization processing method uses the periodic pulse reference signal generated by the main system to realize the clock synchronization of the master and slave systems, thereby realizing the synchronous processing of effective data
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[0026] The technical solutions in the present invention are clearly and completely described below in combination with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0027] A dual-system clock synchronization processing method based on a periodic pulse reference provided by the present invention comprises the following steps:
[0028] 1. The main system and the slave system complete the collection of multiple sensor data respectively. After the data collected by the master system is solved, the result is sent to the slave system, so that the digital signal processor of the follow-up slave system can calculate according to the calculation o...
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The invention discloses a dual-system clock synchronization processing method based on periodic pulse reference, and relates to the technical field of clock synchronization processing. In the method,a master system and a slave system do not need clock synchronization when respective sensors carry out data acquisition; upon completion of data acquisition, after the data acquired by the master system is resolved, all resolving results are sent to the slave system; clock synchronization of the master system and the slave system is achieved through a periodic pulse reference signal generated by the master system; meanwhile, a synchronization signal is sent from a programmable logic device of the system, and therefore, a digital signal processor of the slave system starts to perform navigationcalculation processing on the data acquired by the slave system according to the resolving results of the master system, synchronous processing of the effective data of the master system and the slave system is realized, and the problem of poor integrated navigation calculation effect caused by asynchronous processing of the effective data is avoided.
Description
technical field [0001] The invention belongs to the technical field of clock synchronization processing, in particular to a dual-system clock synchronization processing method based on a periodic pulse reference. Background technique [0002] Integrate different single systems, through the effective data provided by each system, complement the advantages and disadvantages of the combined data, and jointly form a navigation system with high performance indicators and powerful functions, which is called integrated navigation. With the development of navigation technology, there are more and more types of navigation systems. Combining multiple navigation technologies to form an integrated navigation system is an inevitable trend in the development of navigation technology. [0003] A single system adopts an internal unified clock reference, collects sensor data at a certain sampling frequency, performs navigation calculations, and obtains relevant calculation results. The dual...
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IPC IPC(8): G01C21/16G01C21/20
CPCG01C21/16G01C21/20
Inventor 徐辉煌班镜超刘兆梅
Owner HUNAN AEROSPACE ELECTROMECHANICAL EQUIP & SPECIAL MATERIAL INST