ID 原文 译文
14625 近年来硬件安全不断受到挑战,具有不可预测性、随机性等特性的环形振荡器物理不可克隆函数(Ring Oscillator Physical Unclonable Function,RO PUF)可作为硬件安全重要的加密密钥方式,但通常原始RO PUF不满足加密密钥对随机性的要求。 In recent years,hardware security has been continuously challenged. Ring oscillator physical un- clonable function( RO PUF) with unpredictability, randomness and other characteristics can be used as an important encryption key for hardware security, but usually the original RO PUF does not meet the random. ness requirements of encryption keys.
14626 因此,提出了基于多项式拟合频率重构的PUF优化方法。 In this regard, a PUF optimization method based on polynomial fitting frequency reconstruction is proposed.
14627 首先,实现RO电路的硬宏设计并在现场可编程门阵列(Field Programmable Gate Array,FPGA)上进行实例化,从而获得RO阵列的频率数据; First,the hard macro design of the RO circuit is implemented and in- stantiated on the field programmable gate array( FPGA) to obtain the frequency of the RO array.
14628 其次,针对原始响应的随机性较差的情况,通过统计分析其分布特征,利用多项式拟合法优化重构RO阵列频率; In the case of poor randomness of the original response ,the distribution characteristics is statistically analyzed , and the frequency of the RO array is optimized using the polynomial fitting method.
14629 最后,采用熵密度值评估RO PUF响应的随机性。 Finally , the entropy density value is used to evaluate the randomness of the RO PUF response.
14630 选用型号为Xilinx Artix 7103的FPGA板进行实验测试评估,结果表明所提方法不仅比原始RO PUF响应的随机性强,而且与随机补丁混合法(Random Patch Mixer,RPM)和基于回归的熵蒸馏法相比也具备更好的随机性。 The FPGA board model Xilinx Artix7103 is selected for experimental testing and evaluation,and the result shows that the proposed method is not only more random than the original RO PUF response.but also has a better randomness than the Ran. dom Patch Mixer(RPM)method and regression-based entropy distillation method.
14631 SOQPSK-TG (Telemetry Group version of Shaped Offset Quadrature Phase Shift Key)具有良好的频率利用率和功率利用率,广泛应用于无线通信系统当中。 Telemetry group version of shaped offset quadrature phase shift key( SOQPSK-TC) is widely ap- plied for the wireless communications systems,due to its high spectrum-efficiency and power-efficiency.
14632 在连续通信模式下,SOQPSK-TG信号的同步主要采用直接判决算法。 In the continuous transmission .the svnchronization of SOOPSK-TG sional is mainly based on the direct- decision method.
14633 为进一步降低算法复杂度,推导了基于线性相位近似的最大似然估计误差鉴别器,理论上分析了算法估计性能,并搭建了简化的接收模型。 In order to reduce the complexity of the algorithm,the linear phase approximation is used to derive the maximum likelihood discriminator. The theoretical analysis of the performance and the simpli- fied receiving model are also presented.
14634 通过仿真证明了算法在估计性能上优于脉冲幅度调制方法,算法误码率接近理论性能。 The simulation results show that the proposed algorithm has better performance than the method based on pulse amplitude modulation,and its bit error rate is close to the the- oretical bound.