Adaptive Optics System Based on Combinational Deformable Mirror for Improving Wavefront Spatial Correction Capability 一种提高波前空间校正能力的组合变形镜自适应光学系统
The system shall be furnished with good correction capability. 系统具有较强的纠错能力。
A new kind of adaptive optics ( AO) system, in which several deformable mirrors ( DMs) with optical conjugation relationship are combined to improve wavefront spatial correction capability, is proposed. 提出了一种利用光学共轭关系,实现多变形镜空间匹配从而提高波前空间校正能力的自适应光学系统方案。
To improve the bidirectional associative memroy ( BAM) performance, a modified model was used to enhance neural networks'memory capacity and error correction capability. 该模型能增强神经网络的记忆容量和容错联想能力,具有渐进稳定的特征,并且改进了网络平衡状态的稳定性和吸引性能。
The BER performance and its correction capability are investigated by computer simulation in AWGN channel. 用计算机仿真了该算法在加性白高斯噪声(AWGN)信道中的性能。
Tolerance Correction Method to Cover Shortage of Measuring Capability of Testing Devices 弥补检测器具测量能力不足的公差修正措施
The results indicate that, the correction capability of bimorph deformable mirror is greatly dependent on the statistic weight function of the corrected Zernike model wave aberrations induced by atmospheric air turbulence, so far as to the optimization design of mirror. 结果表明:变形镜的校正能力随被校正的各项泽尼克模式像差在大气湍流造成的波前畸变中所占统计权重的不同而有很大的差别,其优化设计结果也随之而变;
As a new type of precision attacking weapon after missile, the trajectory correction projectile is popular with more and more countries by it's flexibility of correction capability and low price. 弹道修正弹作为继导弹后新型的精确打击弹药,以其灵活的弹道修正能力和低廉的造价,受到了越来越多国家的关注和青睐。
RS ( Reed-Solomon) code is being used widely because of its powerful error correction capability. RS码由于具有优良的纠错能力而得到广泛应用。
The concatenated codes are a mirror in the realization of long codes and hold the outstanding correction capability for random error and burst correction. 级联码是实现编码随机化和长码的典范,其编码规则决定了能纠正大量的随机错误和突发错误。
The relations between crosslinking value, Gaussian index of a deformable mirror and correction capability of an adaptive optical system are analyzed and calculated by using a simulation model for turbulence correction of a 61-element adaptive optical system. 利用61单元自适应光学系统湍流校正过程仿真模型,分析计算了变形镜的交连值、高斯指数与自适应光学系统校正能力的关系。
BCH codes are a subset of the class of linear block codes that have good error correction capability. Information hiding is a new technique in information security field. BCH纠错编码是线性分组码的一种,有较好的纠错能力,信息隐藏是近年来信息安全领域出现的新技术。
Terminal Trajectory Correction Capability Analysis and Optimization Design for Simple Control Projectile 简易修正弹末段弹道修正能力分析与优化设计
A feedback algorithm using error-detected source information is designed to improve the error correction capability of the Turbo Log-MAP decoder. 该方案通过反馈检测到的重组信源的信息来改变译码过程中解码器间传递的外信息,从而提高信道译码的纠错能力。
Based on the relationship between the Golay complementary sequences and the Reed-Muller codes, a block encoding algorithm with which input sequences are encoded into Golay complementary sequences is proposed. The Golay complementary sequences also have the error correction capability of Reed-Muller codes. 基于Golay互补序列和ReedMuller码的关系,提出了一种把输入信息序列编成Golay互补序列的分组编码算法,该Golay序列同时还具有ReedMuller码的纠错能力。
The proposed decoding scheme designed a feedback algorithm using error-detected source information to improve the error correction capability of the Turbo Log-MAP decoder without changing its constituent decoder. 该方案在不改变原有传输系统中的TurboLog-MAP译码器结构的情况下,通过重组图像的错误检测,反馈信源的信息来改变译码过程中译码器间传递的外信息,从而提高信道译码的纠错能力。
The neural networks predictive control of time-delay system is taken as an example to present the correct NARMA model correction methods. Simulation results verify that the advanced correction methods can obtain good control performance and anti-disturbance capability. 以时滞系统神经网络预测控制为例,介绍了NARMA模型的正确修正方法,仿真证明了所提出的修正方法能获得好的控制性能及抗干扰能力。
And the different ways of mirror positioning will slightly affect its correction capability. 变形镜的定位方式对其校正能力有一定的影响,但影响不大。
This scheme can control the PAPR of OFDM signal, and have forward error correction capability. 采用此分组码不仅能够抑制OFDM符号的PAPR,而且还能实现前向纠错。
Therefore, channel coding through this part of the digital stream corresponding treatment, the system has some error correction capability and anti-jamming capability, can greatly avoid the error code in the occurrence of streaming. 所以通过信道编码这一环节,对数码流进行相应的处理,使系统具有一定的纠错能力和抗干扰能力,可极大地避免码流传送中误码的发生。
The current press and publication industry of one-dimensional bar code of existing two-dimensional bar code, store less data, error correction capability, unable to meet current market needs publication. 当前新闻出版行业现有的一维条码二维条码,存储数据量少、纠错能力差、无法满足目前的出版物市场的需求。
Two-dimensional barcode ( 2D barcode) has been developing rapidly and received a wide range of attention since the day it appeared for its advantages of large storage capacity, error correction capability, high security, low cost and other features. 二维条码技术自产生以来,以其存储量大,纠错能力强,安全度高,成本低等特性受到了人们的广泛关注,同时也得到了迅速发展。
Two-dimensional bar code with its high information density, large capacity, error correction capability, high reliability and other advantages is being received more and more attention from all over the world. 二维条码以其信息密度高、容量大、纠错能力强和可靠性高等优点,受到世界范围越来越多的关注。
The primary aberration can be corrected by DM with 19 actuators. If the number of actuator is increased, correction capability of DM is improved significantly. 19单元变形镜基本能满足校正初级像差的要求,单元数增多后,变形镜的校正能力显著提高。
As the Error correction coding theory becomes more systematic, coding schemes and architectures of low-complexity, strong correction capability and high efficiency have been realized. 纠错码理论的逐渐完善,使得结构简单、复杂度低、纠错能力强、效率高的编译码方法和编译码架构得以实现。
The wavefront corrector is one of the key elements of AO system. And improvement of the spatial correction capability of correctors is the primary coverage of AO theory and experiment research. 波前校正器是自适应光学系统中的核心部件,如何提高波前校正器的空间校正能力是自适应光学理论和实验研究的重要内容之一。
However, in the multi-use existing TCM convolutional code encoding and decoding. In the high-speed optical communication system, the error correction capability is very limited. 但是,在现有的TCM中多采用卷积码的编译码方式,在高速的光通信系统中,其纠错的能力是非常有限的。
Low density parity check ( LDPC) codes have received major attention in the research community in recent years because of its excellent error correction capability and performance. LDPC(Low-DensityParity-check)码由于其卓越的纠错性能,得到了很大的关注。
Quasi-cyclic ( QC) low-density parity-check ( LDPC) codes have received tremendous attention in the coding community because of their excellent error correction capability and low coding and decoding complexity. QC-LDPC码(Quasi-CyclicLow-DensityParity-CheckCodes,准循环LDPC码)以其优越的纠错性能及较低的编译码复杂度在编码领域得到了广泛的关注。