ID 原文 译文
5134 仿真结果显示,相对于平均功率分配策略,所提功率分配方案可以有效增大系统的保密速率。 Simulations demon-strate that the proposed power allocation result achieves a higher ESR than the equal one.
5135 针对本地化差分隐私中的隐私-效用均衡问题,对差分隐私和近似差分隐私情形下的二元广义随机响应机制建立效用优化模型, For the study of privacy-utility trade-off in local differential privacy, the utility optimization models of binarygeneralized random response mechanism for the case of differential privacy and approximate differential privacy wereestablished.
5136 并采用图解法、最优性证明、软件求解和极值点等方法求解,得到了效用最优值与隐私预算、输入数据分布的精确表达式,给出了相应的效用最优机制。 By graphic method, optimality proof, software solution and extreme point method, the exact expression of the optimal utility with privacy budget and the distribution of input data was obtained, and the corresponding optimalrandomized response mechanism was given.
5137 研究结果表明效用最优值和效用最优机制均与隐私预算和输入数据分布相关。 The results show that both the optimal utility and optimal mechanism arerelated to privacy budget and input data distribution.
5138 另外,多元随机响应机制效用优化模型可通过本地化差分隐私极值点来求解。 Moreover, the discussion for multivariate randomized response me-chanism shows that the method of extreme points of local differential privacy is feasible to the solution.
5139 针对传统的捕获算法无法实现高动态环境下二进制偏移载波(BOC)信号同步问题,设计了一种分数阶傅里叶变换(FRFT)与离散多项式相位变换(DPT)相结合的捕获算法。 As the synchronization of binary offset carrier (BOC) signals couldn't be realized in high dynamic environ-ment by traditional acquisition algorithms, an acquisition algorithm based on fractional Fourier transform (FRFT) anddiscrete polynomial-phase transform (DPT) was proposed.
5140 该算法首先根据定阶运算得到接收信号的动态阶数来判定是否需要进行降阶处理, Firstly, the algorithm determined how to process the receivedsignal according to the dynamic order obtained by the order operation.
5141 然后通过对 FRFT 捕获算法输出的谱峰值搜索得到动态参数和码相位的估计值来完成捕获。 And then the acquisition was achieved by search-ing the spectral peak of the FRFT algorithm to obtain the estimation of dynamic parameters and code phase.
5142 理论分析和仿真结果表明,所提算法在原有 FRFT 捕获算法的基础上消除了二阶多普勒变化率的影响,能够成功捕获到高动态 BOC 信号。 Theoretical analysis and simulations show that the proposed algorithm eliminates the influence of second-order doppler shift ratebased on original FRFT acquisition algorithm, which can successfully capture high dynamic BOC signals.
5143 与其他算法相比,所提算法进一步增强了整个捕获结构的动态适应能力和抗噪性能,并且在检测概率和捕获时间方面具有优越的性能。 The proposed algorithm further enhances the dynamic adaptability and anti-noise performance and has superior performance in detec-tion probability and acquisition time in comparison with other algorithms.