ID 原文 译文
22485 针对该问题，该文研究了未知杂波势估计概率假设密度(CPHD)滤波算法。 For this problem, this paper addresses the problem of Cardinalized Probability Hypothesis Density (CPHD) filter with clutter estimation.
22486 首先，提出一种基于狄利克雷过程混合模型(DPMM)类的未知杂波 CPHD算法，该算法能够自动选取合适的类数对杂波进行描述，有效降低了杂波空间分布估计的误差。 Firstly, this paper presents a new CPHD filter with clutter estimation based on Dirichlet Process Mixture Model (DPMM). Thus, this DPMM-λ-CPHD algorithm can reduce the estimation error of the clutter spatial distribution effectively by selecting an appropriate class number.
22487 此外，提出样本集校正的思想，并将其引入所提算法，通过去除样本集中由真实目标产生的量测，较好地解决了杂波数过估和目标数低估的问题。 Secondly, to solve the clutter overestimation and cardinality underestimation problems, a correction idea of the sample set via CPHD filter recursion is proposed. By introducing this idea to the DPMM-λ-CPHD algorithm, an improved DPMM- λ -CPHD algorithm is proposed to solve this intractability of errors on clutter number and target number.
22488 与传统算法相比，所提算法的滤波精度更接近于杂波信息匹配情况下的性能，仿真结果验证了其优越性与鲁棒性。 Simulation results show that the proposed algorithm can effectively estimate the unknown parameters of clutter and has a good performance of multi-target tracking.
22489 针对基于双线性映射的属性基加密方案中无法抵抗量子攻击的问题，该文提出一种新的格上多机构属性基加密方案。 To resolve the problem of poor security on quantum attack in attribute-based encryption over the bilinear maps, a new multi-authority attribute-based encryption scheme on lattices is proposed.
22490 先利用格上左抽样算法为用户生成密钥，使得用户私钥尺寸与级联矩阵的列数和用户属性个数相关，缩短用户私钥尺寸； Firstly, the SamepleLeft algorithm was used to extract the user's private key, so it can reduce the size of private key which is related to the dimensions of concatenation matrix and the quantity of users' attributes.
22491 然后采用 Shamir 门限秘密共享技术构造访问树，实现属性的与、或、门限 3 种操作，密文允许基于任意的访问结构生成，表达能力更加丰富，解决了大多方案中访问策略单一问题； Secondly, aiming at the problem of single access policy, the new scheme employing the Shamir secret sharing scheme which is used to construct an access tree to realized "AND, OR, THRESHOLD" operations on attributes, so the ciphertext can be generated by any access structure, and the expressive skill of access policy is more extensive.
22492 方案证明可在标准模型下归约到判定性带误差学习问题的难解性。 Lastly, the security of the proposed scheme could reduce to the hardness of decisional learning with errors problem under standard model.
22493 对比分析表明，方案系统公私钥、用户私钥和密文尺寸均有所优化，并较优于大多数单机构方案，此外方案存在多个属性机构，支持任意单调访问结构，安全性和实用性更满足云环境需求。 Comparative analysis shows that, the size of public parameters, master secret key, user's private key and ciphertext are all optimized, and it has better performance than single authority schemes in some degree. Furthermore, from perspective of security and practicability, the new multi-authority attribute-based encryption scheme is more suitable for the demand of cloud environment.
22494 在可重构网络多态路由模型中，通常存在多条满足业务需求的服务路径。 There are many service paths which can satisfy the business requirements in polymorphic routing model of reconfigurable networks.