Method for recording and downloading satellite measured and controlled telemetry parameters of invisible arc section
A technology of telemetry parameters and telemetry data, which is applied to signal transmission systems, instruments, etc., to achieve the effect of improving utilization and reducing human intervention
Active Publication Date: 2013-05-01
BEIJING INST OF SPACECRAFT SYST ENG
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[0005]2. Affected by the measurement and control channel bandwidth and the ratio of the length of the visible arc to the invisible arc, the stored data may not all be downloaded to the ground
[0006] In addition, different types of data have different change patterns and contribute differently to ground monitoring and analysis satellites. Therefore, it is not appropriate to store and download all telemetry data. scientific
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[0029] A certain satellite has an unmonitorable arc section, and the storage capacity of the delayed telemetry data of the digital tube computer is not less than 25 hours, and the time ratio between the unmonitorable time and the next monitorable time within 7 days is less than 4.83.
[0030] The satellite is set up with 12 time-delayed telemetry packets, each of which stores a type of time-delayed telemetry data. According to the data volume and change characteristics of different types of data, different recording methods are adopted, as shown in the following table:
[0031] source package name recording method Space exploration time-lapse telemetry data Cycle: 128s Measurement and control uplink channel delay telemetry data packet Condition: based on reference value and previous state Control subsystem rapid change data delay telemetry data packet Condition: based on reference value Control subsystem slowly changing data delay telemetry...
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The invention relates to a method for recording and downloading satellite measured and controlled telemetry parameters of an invisible arc section, which is used for being matched with a time scale command to complete recording and downloading of delayed telemetry of the invisible arc section. The method comprises the following steps of: when executing the time scale command and indicating the current state as a departure state, recording according to a recording strategy of the delayed telemetry; and when executing the time scale command and indicating the current state as an entry state, downloading according to a downloading strategy of the delayed telemetry in the time scale command. The recording strategy comprises two modes of period recording and condition recording. The downloading modes comprise a totally downloading mode, an extraction proportion downloading mode and a time period selective downloading mode. By the mode that the method is matched with the time scale command,the automatic recording and downloading of the delayed telemetry can be realized. Due to the adoption of the recording strategy and the downloading modes, corresponding processing can be carried out according to different types of data. The method is more flexible and has higher storage and downloading efficiency, so that the satellite state is furthest reflected by utilizing the effective bandwidth and the basis is provided for fault analysis and judgment of a satellite outside the monitoring arc section.
Description
Technical field [0001] The invention is the field of aerospace measurement and control communication technology, involving a remote measurement data processing method. Background technique [0002] The remote test data of the spacecraft generally includes the health data, operating data, remote control response data and performance data of each sub -system and equipment.Remote test data is of great significance for understanding the health status and working status of the spacecraft.However, due to the limit of the number of measurement points and distribution, the spacecraft has an irresistible arc segment and becomes a blind spot for spacecraft monitoring.How to get the remote test information of this working section has become an important subject. [0003] The more intuitive processing method is to equip the star with large -capacity memory on the star, store all these remote test parameters, and then transmit it to the ground in the measurement and control arc segment.But t...
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IPC IPC(8): G08C17/02
Inventor 陶利民杨聪伟李林唐自新翟君武李瑞军付连芳
Owner BEIJING INST OF SPACECRAFT SYST ENG