On the 18th, the reporter learned from the Chinese Academy of Agricultural Sciences that the agricultural genomics technology R&D and application innovation team of the Shenzhen Institute of Agricultural Genomics of the academy proposed a new error correction algorithm for DNA digital storage, which successfully broke through the limitations of redundancy on error correction capabilities and will greatly improve the error correction capabilities of DNA storage. Relevant research results were recently published in the Chinese academic journal National Science Review.
DNA digital storage is a new method of storing information using the life code DNA. With its advantages of high storage density, long storage life and low maintenance cost, it is regarded as an emerging storage technology with high potential. However, synthesis errors, storage errors, and sequencing errors in the DNA digital storage process pose challenges to the accurate recovery of data.
In order to solve this problem, the researchers built an error prediction model based on the error preference of DNA digital storage. Based on this, they integrated error-correcting code decoding technology for the first time and developed soft-decision (physics term, the input of the decoder can only be 0 or 1) twice the hard decision (physics term, does not directly determine whether the output is 1 or 0, only gives a "guess") decoding software Derrick. It is expected to reach a lossless storage capacity of hundreds of trillions of bytes.