Data interleaving/deinterleaving method and device

Abstract

The invention discloses a data interlacing / de-interlacing device, and the device is characterized in that the device comprises a short interlacing depth processing unit for processing a short interlacing depth, and a long interlacing depth processing unit for processing a long interlacing depth. Correspondingly, the invention also discloses a data interlacing / de-interlacing method. The device and method can achieve the interlacing / de-interlacing of data in a parallel input mode, improve the data transmission rate of a communication system and the supporting capability for big-data communication, and can achieve the high-speed transmission of data according to a CCSDS standard.

Description

technical field [0001] The invention relates to the technical field of communication decoding, in particular to an interleaving / deinterleaving method and device for high-speed data transmission conforming to the CCSDS standard. Background technique [0002] Interleaving and deinterleaving is a very practical and commonly used method of constructing codes, and combined with other coding methods (such as block coding), it can not only correct random errors, but also can be used to correct burst errors, so it is often used in Combined channel error correction system. Some channel coding techniques, such as RS coding, can further improve anti-interference performance after adding interleaving technology. The basic idea of ​​interleaving technology is to change the transmission order of symbols at the data sending end, and successfully transform a channel with memory into a channel without memory, so that error correction coding is also suitable for noise burst channels. The in...

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Problems solved by technology

[0004] In the existing data transmission system, although the combination of interleaving-RS encoding / decoding-deinterleaving can meet the corresponding requirements, for large data volume and high-speed data transmission systems, in order to meet the requirements of system data throughput and rate It is required that the data be transmitted in parallel. The existing interleaving-RS encoding / decoding-deinterleaving processing structure is difficult to adapt to the parallel transmission mode at a high rate, which is easy to cause data accumulation and cause bit errors, and its own structure also limits the system. Transmission rate, at the same time, some methods use RAM or SDRAM for data storage, and the read and write addresses corresponding to the interleaving method involve the determinant transformation of the address matrix, which is difficult and complex

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