ID 原文 译文
553 仿真结果表明,该文所提方法能够有效抑制系统的干扰信号,减少了有用信号受到的非线性影响,验证了该方案的正确性。 The simulation results show that the proposed method can effectively suppress theinterference signals of the system, reduce the nonlinear influence of useful signals, and verify the correctness ofthe scheme.
554 为高效传输业务类型多样化的空间数据,该文基于高级在轨系统(AOS)虚拟信道复用技术,建立了AOS虚拟信道(VC)混合调度模型。 In view of transporting various spatial data service types, an Advanced Orbiting Systems (AOS)virtual channel hybrid scheduling model is established based on AOS virtual channel multiplexing technology.In the model, a algorithm based on genetic-particle swarm ordering is proposed for asynchronous VirtualChannel (VC).
555 在混合调度模型中,对异步虚拟信道提出了基于遗传-粒子群排序的调度算法,业务优先级、调度时延紧迫度及帧剩余量紧迫度是影响虚拟信道调度先后顺序的关键约束,该算法根据约束建立了遗传-粒子群适应度函数模型,进一步使粒子群体内的粒子根据遗传算法的进化算子进行位置更新,从而找到最优的异步虚拟信道调度顺序。 Service priority, scheduling delay urgency and frame remaining urgency are the key constraintsthat affect the scheduling order of VC.The algorithm establishes the genetic-particle swarm fitness functionmodel according to the constraints, and further enables the particles in the particle swarm to update theposition according to the evolution operator of the genetic algorithm, thereby finding the optimal asynchronousVC scheduling sequence.
556 同时,对同步虚拟信道设计了动态加权轮询调度算法,使各同步虚拟信道按照加权因子和分配的时隙数,轮流占用物理信道。 At the same time, a dynamic weighted round-robin scheduling algorithm is designed forthe synchronous VC, so that each synchronous VC occupies the physical channel according to the weightingfactor and the allocated number of time slots. Simulation results show that the VC hybrid scheduling algorithmin this paper takes into account the priority of asynchronous data, the isochronism of synchronous data, andthe urgency of VIP data.
557 仿真结果表明,该文的虚拟信道混合调度算法兼顾了异步数据的优先性、同步数据的等时性和VIP数据的紧迫性,具有更小的平均调度时延和更少的帧剩余量,满足不同业务的传输要求。 It has a smaller average scheduling delay and less frame remaining, so the algorithmmeets the transmission requirements of different services.
558 为了应对直接序列扩频(DSSS)中信息传输率低的局限,出现了多进制扩频及索引调制等技术,由于此系列技术中附加信息都是通过伪码变换来映射的,因此调制阶数越大,复杂度也越大,而当系统所承受的复杂度受限时,调制阶数也就无法提升。 In order to solve the limitation of low information transmission rate in Direct Sequence SpreadSpectrum (DSSS), some techniques such as multi-band spread spectrum and index modulation appear. Becausethe additional information in this series of technologies is mapped by pseudo code transformation, the larger themodulation order is, the greater the complexity will be, and when the complexity of the system is limited, themodulation order will not be improved.
559 为解决高阶信息传输率受限问题,该文提出一种低复杂度的超高阶码索引调制(UHO-CIM)方法,通过2维信息的分组来进行多码集索引,从而降低通道数量,进而通过3维信息的分组来进行循环移位索引,从而在不增加通道情况下大幅度地提高传输率,而且利用移位通道和非移位通道关系,去除环境影响。 In order to overcome the limitation of high-order informationtransmission rate, an UltraHigh Order Code Index Modulation (UHO-CIM) method with low complexity isproposed. The multi code set index is carried out by two-dimensional information grouping, so as to reduce thenumber of channels, and then the cyclic shift index is carried out by three-dimensional information grouping, soas to improve greatly the transmission rate without increasing the channels. Moreover, the relationship betweenshift channel and non-shift channel is used to remove the environmental impact.
560 该方法不仅可以有效传输多维信息,而且与现有方法比较,复杂度大大降低,综合性能具有明显优势;此外,现有方法很难达到高阶及超高阶的信息传输,而提出的方法可实现调制阶数大于15的超高阶信息传输,从而为高效扩频通信应用提供可借鉴技术。 This method can not onlyeffectively transmit multi-dimensional information, but also reduce greatly the complexity compared with theexisting methods, and has obvious advantages in comprehensive performance. In addition, the existing methodsare difficult to achieve high-order and ultra-high-order information transmission, while the proposed methodcan achieve ultra-high-order information transmission with modulation order greater than 15, which providesreference technology for the efficient spread spectrum communication applications.
561 为解决传统相关延迟键控(CDSK)混沌通信系统存在的误码(BER)性能差的问题,该文提出一种基于施密特正交化的降噪多载波相关延迟键控(NR-MC-CDSK)混沌通信系统。 In order to solve the shortcomings of high Bit Error Rate (BER) in traditional Correlation DelayShift Keying (CDSK) chaotic communication system, a Noise Reduction Multi-Carrier Correlated Delay ShiftKeying (NR-MC-CDSK) chaotic communication system based on Schmidt orthogonalization is proposed.
562 在发送端,利用施密特正交化算法产生N组完全正交的混沌载波,并复制P次作为参考信号,与N个信息信号叠加进行传输,并利用多载波技术,复用每帧信号传输MN个用户信息。 At thetransmitter, Schmidt orthogonalization algorithm is used to generate N completely orthogonal chaotic signalswhich are copied P times as reference signals. N information signals are added up for transmission in each groupand multi-carrier is used to transmit MN user information per frame.