ID 原文 译文
3603 在 I/Q 解调模块中，利用平衡探测方法不仅有效抑制了二阶交调失真和直流偏移，还提高了接收机的动态范围， In the I/Q demodulation module, by the balanced detection method the second-order intermodulation distor-tion (IMD2) and direct current (DC) offset were effectively suppressed, and the dynamic range of the receiver was im-proved,
3604 同时利用电耦合器配合电带通滤波器解决了超外差架构普遍存在的镜像干扰问题，最终实现了 5 GHz 带宽射频信号的信道化接收。 at the same time, the electrical hybrid couple (EHC) and electric bandpass filter (EBPF) were used to solve the problem of image interference that is common in superheterodyne architectures. Finally it achieves channelized receptionof 5 GHz bandwidth RF signals.
3605 针对现有标量乘法器不能适用于多椭圆曲线且运算开销较大的问题，设计了一种能应用于两类素数域椭圆曲线的高速标量乘法器。 Aiming at the problem that the existing scalar multiplier cannot be applied to multi-elliptic curve and the costis expensive, a high-speed scalar multiplier was designed, applicable to two types of elliptic curves over prime fields.
3606 首先，在标量乘算法上，对 secp256r1 曲线的基点采用 Comb 算法，对普通点采用 Shamir算法，对 Curve25519 曲线使用蒙哥马利阶梯算法； Firstly, in terms of the scalar multiplication, secp256r1 base points were processed with the comb algorithm, and theShamir algorithm for ordinary points, and the Montgomery ladder algorithm for Curve25519.
3607 然后，优化了点加和倍点运算的操作步骤，并对点加中 Z=1的情况进行简化设计，有效减少计算周期数； Secondly, the operation ofpoint addition and point doubling was optimized, and the condition of Z=1 in point addition was simplified, thereby ef-fectively reducing the number of calculation cycles.
3608 最后，采用快速模约简实现模乘，设计了 Curve25519 的快速模约简算法。 Lastly, a fast modular reduction algorithm of Curve25519 was de-signed for modular multiplication.
3609 整个设计充分考虑复用，在 55 nm CMOS 工艺下需 1 022×10 3 个等效门，在 secp256r1 和 Curve25519 上计算普通点标量乘，运算速度分别为 15.3 万次/秒和 15.8 万次/秒，其中 secp256r1 上的运算速度是现有设计的 1.9 倍。 Multiplexing was an important factor in the entire designing process. A 1022K equiv-alent gate was selected for the 55 nm CMOS process. This allowed ordinary point scalar multiplications performed onsecp256r1 and Curve25519 respectively, calculating at the speeds of 153 000 times per second and 158 000 times persecond, with the speed for secp256r1 1.9 times that of the existing designed one.Key words: ECC, scalar multiplication, fast modular reduction, hardware impleme
3610 为了解决轨道角动量复用水下无线光通信系统中海洋湍流引起的信道串扰问题，对空时编码技术在该系统中的应用进行了研究。 In order to mitigate the crosstalk caused by oceanic turbulence in the underwater wireless orbital angular mo-mentum multiplexing optical communication system, the application of space-time coding technology in the system wasstudied.
3611 基于 Rytov 近似，利用协方差法和插值法产生了具有相关性的随机相位屏，模拟了时变的海洋湍流信道对轨道角动量信号的影响， Based on Rytov approximation, the covariance method and interpolation method were used to simulate correlatedrandom phase screens and then the influence of time-varying oceanic turbulence channel on orbital angular momentumsignal was studied.
3612 仿真分析了采用空时编码的轨道角动量复用光通信系统传输特性、时变湍流屏的相位结构函数以及轨道角动量光束经时变仿真信道后的探测概率分布，仿真结果符合理论预期。 The transmission characteristics of orbital angular momentum multiplexing optical communicationsystem with space-time coding was analyzed by simulation. The phase structure function of the time-varying phasescreens and the detection probability distribution of the beam carrying the orbital angular momentum through thetime-varying simulation channel were in line with theoretical expectations.