Satellite load data simulation source testing method and device

Abstract

The invention discloses a satellite load data simulation source testing method and device. The method comprises the steps of: receiving a testing instruction, and generating and transmitting a pseudo-random data simulation source; receiving the pseudo-random data simulation source, generating a comparison template in real time, comparing the comparison template with filling data in real time, andjudging whether the filling data has an error code or not; verifying the frame header information and the data filling, generating a comparison template for verification filling, comparing the comparison template for verification filling with the verification filling in the pseudo-random data simulation source, and judging whether the whole data frame has an error code or not; and caching the frame header information of a plurality of channels for the condition that the frame header information part has an error code or may have an error code, performing grouping sorting on the frame header information according to the virtual channel identifier, judging whether the frame header information part has an error code or not again, determining an error code position, and obtaining error code related information. According to the invention, real-time online interpretation of data can be realized, not only are storage resources of a test system saved, but also the test efficiency of a solid-state memory is improved.

Description

technical field [0001] The invention belongs to the field of satellite payload data testing, and in particular relates to a satellite payload data simulation source testing method and device. Background technique [0002] When the satellite is in orbit, the payload data is stored in solid-state memory. At present, the testing method for this type of data is to send the data template stored in the server to the solid-state storage at a fixed rate, and then compare the data played back by the solid-state storage with the original data template by batch caching. However, with the development and application of high-resolution earth observation satellites, the storage space and transmission rate required by satellites continue to increase. The capacity of on-board solid-state memory has increased from Gb to Tb, and the total bandwidth of input and output data has increased from tens of Mbps to tens of Gbps. As a result, test methods that rely on data cache have higher and highe...

AI Technical Summary

Problems solved by technology

The capacity of on-board solid-state memory has increased from Gb to Tb, and the total bandwidth of input and output data has increased from tens of Mbps to tens of Gbps. As a result, test methods that rely on data cache have higher and higher performance requirements for test equipment. Significant increase in equipment costs

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