ID 原文 译文
7574 首先建立了基于遗传算法的单个多弹头在轨武器平台拦截轨道优化模型,确定了拦截所需的速度增量和消耗燃料的质量; Multiple-warhead based on genetic algorithm was established by a single orbit interception orbit optimization model of weapon platform, determine to intercept the velocity increment and the consumption of fuel quality;
7575 其次提出了以打击目标数目和单个多弹头在轨武器平台剩余燃料的最小值作为优化指标,建立了基于DPSO-TS算法的目标分配优化模型; Multiple-warhead secondly put forward based on the number of targets and a single orbit weapons platform residual fuel the minimum as the optimization of index, is established based on the DPSO - TS algorithm of target assignment optimization model;
7576 最后仿真结果表明DPSO-TS算法在保持DPSO算法收敛精度的前提下,收敛速度更快,该方法能够快速有效地解决多个多弹头在轨武器平台的目标分配优化问题。 Finally, the simulation results show that the DPSO - TS algorithm in keeping the DPSO algorithm under the premise of convergence precision, faster convergence speed, this method can quickly and efficiently solve multiple muti-warhead on-orbit weapon platform target distribution optimization problem.
7577 传统差分网络编码在解码转发方式下编码环节繁杂、中继检测复杂度高。 Traditional differential network coding forward in decoding mode coding link is multifarious, relay testing complexity is high.
7578 基于此,文中提出复数域符号相乘的差分网络编码,并构建了中继检测方法一和中继检测方法二,能显著降低中继的检测和编解码复杂度。 Based on this, the thesis presents the difference in complex domain symbol multiplication network coding, and build the relay test method and relay testing method 2, can significantly reduce the detection and decoding complexity of the relay.
7579 同时,将提出的编码方法拓展到多中继协作方式以获取高阶协作分集增益,并得到随机差分空时网络编码,其能获得的分集增益阶数为解码正确的中继个数。 At the same time, the proposed encoding method to expand to multiple relay coordination way in order to get higher order cooperation diversity gain, and obtained through random differential space-time coding, it can obtain the diversity gain order to decode the correct number of relay.
7580 仿真实验和理论分析均验证了提出的复数域符号相乘的差分网络编码方法在单中继和多中继协作方式下的有效性。 Simulation experiment and theoretical analysis are to verify the effectiveness of the proposed complex domain symbol multiplication of differential network coding method in a single relay and relay coordination mode is effective.
7581 基于离散傅里叶变换(discrete Fourier transform,DFT)滤波器组的数字射频存储器具备宽频带覆盖和干扰宽带雷达的特点。 Based on discrete Fourier transform (discrete 'Fourier transform, the DFT) filter bank of digital rf memory have broadband coverage and interference of the characteristics of broadband radar.
7582 针对临界采样时DFT滤波器组信道间混叠严重的问题,推导了过2采样DFT滤波器组的高效多相实现结构,将带间混叠减少了一半。 For critical sampling aliasing between DFT filter bank channel when serious problems, was deduced through 2 sampling efficient polyphase implementation structure of DFT filter bank, will take between halved the aliasing.
7583 为进一步提高重构信号的精度,提出了基于震荡粒子群杂交算法的滤波器频域设计方法,通过优化目标函数,提高了输出峰值信噪比,降低了最大输出误差,缩减了优化求解时间。 In order to further improve the precision of the reconstructed signal, particle swarm optimization (pso) is proposed based on shock filter frequency domain design method of hybrid algorithm, by optimizing the objective function, improves the output peak signal-to-noise ratio, reduces the maximum output error, reduce the optimal solution.