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The visibility function should be formulated as a vector due to the fact that the visibilities lie naturally in random locations for the circular arrays. The digital signal processing subsystem is used to calculate the visibility function samples and reconstruct the millimeter-wave image in real-time.
A method and system for producing a circular array solar radio imaging telescope
PendingCN122131028AEliminate gain driftimprove accuracyImage enhancementElectromagentic field characteristicsFrequency spectrumEngineering
This invention provides a method and system for generating products for a circular array solar radio imaging telescope, comprising: generating raw complex visibility function data and raw solar radio spectrum data based on the output signals of each antenna element of the telescope; obtaining calibrated data through multi-dimensional calibration of channels, phase, the entire system, and the spectrum; generating a solar radio brightness temperature image based on the calibrated complex visibility function data, and generating two types of fast-view products by combining the calibrated spectrum data; performing quality inspection on all data products, and classifying and storing qualified products after encapsulation according to standardized naming rules and metadata specifications. This invention achieves end-to-end processing from raw signals to standardized products, balancing data accuracy, real-time performance, and quality controllability, fully complying with relevant technical specifications, and adapting to the high-resolution observation requirements of the telescope.
Owner:SHANGHAI (BEIJING) ARTIFICIAL INTELLIGENCE TECHNOLOGY RESEARCH INSTITUTE CO LTD