CCSDS标准下LDPC码的编译码算法研究

CCSDS标准下LDPC码的编译码算法研究Title: Research on Encoding and Decoding Algorithms of LDPC Codes under CCSDS S

CCSDSLDPC 标准下码的编译码算法研究 Title:ResearchonEncodingandDecodingAlgorithmsofLDPCCodesunder CCSDSStandard Abstract: Thispaperpresentsacomprehensivestudyontheencodinganddecoding algorithmsofLow-DensityParity-Check(LDPC)codesundertheConsultative CommitteeforSpaceDataSystems(CCSDS)standard.LDPCcodeshave gainedsignificantattentioninvariouscommunicationsystemsduetotheir excellenterrorcorrectioncapabilities.TheCCSDSstandardspecifiestheLDPC codesusedinspacemissions,emphasizingtheneedforefficientandreliable encodinganddecodingtechniques.Inthispaper,weinvestigatevarious encodinganddecodingalgorithmsforLDPCcodesundertheCCSDSstandard, includingtheconstructionofparitycheckmatrices,iterativedecoding algorithms,andperformanceanalysis.Theproposedalgorithmsaimto enhancetheerrorcorrectioncapabilitiesofLDPCcodesandimproveoverall systemperformance. 1.Introduction 1.1Background 1.2Objective 1.3OrganizationofthePaper 2.LDPCCodesandCCSDSStandard 2.1LDPCCodes 2.1.1PrinciplesofLDPCCodes 2.1.2AdvantagesandApplications 2.2CCSDSStandardforLDPCCodes 2.2.1SpecificationsandRequirements 2.2.2ImportanceinSpaceMissions 3.EncodingAlgorithmsforLDPCCodesunderCCSDSStandard 3.1ParityCheckMatrixDesign 3.1.1RegularandIrregularLDPCCodes 3.1.2ConstructionMethodsforParityCheckMatrices 3.1.3OptimizationTechniquesforMinimizingtheNumberofOnes 3.2GirthOptimizationAlgorithms