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Algorithms for increasing the resource of ROM and RRD memory operation in deep space conditions

In space-ground interferometry systems, in order to improve UV plane filling and the quality of synthesized images, antenna systems separated from each other are used, thus forming variable projections of the spacecraft – ground receiving station. The increasing amount of information from highly sensitive receiving devices leads to rapid filling of the onboard memory with scientific data. In order to quickly read data from the onboard memory device, it is reasonable to increase the speed of transmitted data on the spacecraft-NSPI line. A variant of correcting group errors in a communication channel using algorithms of interleaved lossless coding/decoding distributed according to linear and pseudo-random laws is considered, which allows increasing the survivability of memory elements when transmitting data from autonomous systems in near and deep space. Some memory elements can be switched off until a certain moment of time. Group errors arising in this case can be transformed into single errors in accordance with the interleaving algorithms for correction of the latter by redundant noise-resistant code. In case of failure of certain memory elements, using the above mentioned algorithms, it is possible to transform group errors into single errors with subsequent correction in the same way. The application of non-loss interleaving interleaving codes under the conditions of normalization of the frame of the basic packet allows to increase the reliability of functioning of electronic memory elements. Nowadays, the development of computer technology allows data accumulation/input via a high-speed bus. This significantly increases the recording speed and the volume of stored data. A variant of the recording system is proposed, which can be used for operation in satellite data reception centers and radio astronomical data processing centers. The versatility of this system provides the possibility to build in a video converter, decoder, increase SSD data array. Read more...