diversity signal
英 [daɪˈvɜːsəti ˈsɪɡnəl]
美 [daɪˈvɜːrsəti ˈsɪɡnəl]
【计】分集信号
双语例句
- Compared with the conventional phased array radar, MIMO radar may acquire a better target detection performance by exploiting space diversity and signal diversity techniques.
MIMO雷达采用了空间分集与信号分集技术，与传统相控阵体制雷达相比，可望获得更高的目标检测性能。 - RAKE Receiving Based on Diversity Technology for UWB Signal
基于分集技术的UWB信号RAKE接收 - A kind of guidance radar with polarization diversity and its signal design for low probability of intercept
一种极化分集制导雷达及低截获概率信号设计 - A systematic analysis is made of the method for and property of space diversity, or the merger guidelines of the multiaerial receiving signal and factors influencing the diversity gain.
在无线电视传输信道特性的基础上，解析了分集天线的原理，系统分析了空间分集的方法和性能，即多天线接收信号的合并准则、影响分集增益的因素。 - Research results imply that the performance of space-time trellis codes achieving the maximum diversity mainly depends on minimum determinant among all possible differential signal matrix, as well as the appearance probability of this value.
我们研究表明：在达最大分集增益前提下，网格空时码的性能不仅与差矩阵的最小行列式值有关，而且还与该最小值的出现概率有关。 - The idea of diversity is emphasized in this thesis in signal processing perspective, and two schedules are proposed to perform it.
文章重点从分集处理的角度来讨论时变色散信道的盲均衡和盲辨识问题，指出了两种采用信号处理方法实现这一思想的基本策略。 - Performance of M ary orthogonal direct sequence code division multiple access ( DS-CDMA) signals over multipath Rayleigh fading channel with noncoherent RAKE receiver is examed. Two maximum selection diversity reception schemes, maximum signal to noise ratio selection and muximum output selection, are considered.
研究了随机M进制正交码直接序列扩频码分多址信号经过多径瑞利频率非选择性衰落，在非相干RAKE接收机中采用最大输出信噪比选择或最大输出选择分集接收时系统的性能； - Diversity Receiving Technique for Synchronous Time Spreading Signal in Time-Varying Fading Channels
时变衰落信道中同步时间扩展信号的分集接收技术 - Research on Diversity of Drum Level Signal under Multi-sensor Measurement
汽包水位多传感器测量中信号差异的研究 - The expression for the correlation coefficient for the polarization diversity system is obtained. Therefore the effects of MC on the signal correlation coefficient, mean power ratio and system polarization diversity gain can be investigated more comprehensively.
给出极化分集系统信号的相关系数表达式，能够更全面地分析互耦对X型极化分集系统中信号相关系数、信道平均接收功率比和系统极化分集增益的影响。 - Smart antenna and spatial diversity receiving are two most important spatial signal processing technologies.
智能天线和空间分集接收技术是主要的两种空间信号处理技术。 - Instead of using time-frequency diversity, convolution coding and Viterbi decoding are employed to combat signal fading, consequently the bit-rate and bit-error-rate performance of the underwater acoustic voice communication system can be balanced and controlled.
在克服幅度衰落方面，选用卷积编码和维特比译码方法来替代分集技术以综合调节系统的通信速率与误码性能，达到差错可控的目的。 - The Diversity of Shanghai Rail Transit Signal Systems and Its Solution
上海轨道交通信号制式的多样性及其对策 - In this paper, the frequency diversity reception of multi-carrier CDMA signal is studied.
本文研究了多载波码分多址（Multi-carrierCDMA）扩展频谱系统在多径衰落信道下的频率分集接收技术。 - The Multiple Diversity Reception of Signal Under Water in Laser Communication
水下激光通信中信号的分集接收 - Space-time Diversity, Channel Estimation and Signal Detection Technique for MIMO-OFDM System
MIMO-OFDM系统的空时分集、信道估计与信号检测技术 - Because of the condition limits and complex and deteriorated circumstance, it is necessary to adopt the diversity combining to restrain the interference and noise, improve the quality of signal transmission.
由于条件的限制和日趋复杂恶化的电磁环境，采用分集技术来有效抑制干扰噪声、改善信号传输质量是十分必需的。 - The author studies recognition of signal modulation mode in OFDM system according to the diversity of communication signal types and modulation modes and the complexity of wireless signal channel environment.
针对通信信号种类和调制方式的多样性、以及无线信道环境的复杂性，研究了自适应OFDM系统中信号调制方式的识别。 - The main theory of closed transmit diversity is to adjust the signal's phase and amplitude of master and diversity antennas according to the feedback information.
闭环发射分集是根据移动台在上行信道里的反馈的信息对前向主、分集天线上的信号幅度与相位进行调整，使得移动台有最佳的接收效果。 - MIMO can exploit the spatial multiplexing gain to improve the channel capacity and meanwhile get spatial diversity to improve reliability of signal, reduce error rate by eliminate the multi-path effects and fading effects of wireless channel.
MIMO技术可以利用空间复用增益来提高信道容量；利用空间分集来消除信道多径、时变衰落的影响，提高信号传输的可靠性，降低误码率。 - Simulation results show that cooperative diversity scheme based on signal superposition can significantly reduce the bit error rate at high SNR, while cooperative diversity scheme based on code superposition can improve system performance well at low SNR.
仿真结果表明：基于信号叠加的协作分集方案在高信噪比时能够大大降低系统的误比特率，而基于码字叠加的协作分集方案在低信噪比时可以较好地改善系统性能。 - To achieve the full spatial diversity, the cognitive radio should combine the multi-antenna signal previously to the detection.
为了获取最大空间分集增益，感知无线电检测器需要在没有授权系统任何先验信息的条件下，在频谱检测前对多天线信号进行合并。 - Space diversity, which does not require extra time or frequency resource to transmit redundant signal, is more attractive than traditional time and frequency diversity techniques.
与传统的时域分集和频域分集技术相比，基于多天线发射或接收的空域分集技术由于不需要占用额外的时域或频域资源来传输冗余信号而具有更大的吸引力。 - Doppler diversity considers Doppler spread as a way of diversity, and improves the system performance by enhancing the signal energy.
多普勒分集将多普勒扩展作为一种分集方式，通过增强信号能量来改善系统性能。 - Similar to multi-antenna systems, the relays provide diversity by creating multiple replicas of the signal of interest.
与多天线系统类似，中继通过复制多个信号来提供多样性选择。 - The phase diversity reception of the amplitude modulation signal, the application of quadrature amplitude modulation ( QAM) signal in the coherent optical system, and the automatic polarization control in the coherent optical system are studied in this thesis.
本文主要对调幅信号的相位分集接收，正交幅度调制（QAM）信号在相干光通信系统中的应用，以及相干光系统中的自动偏振控制技术进行了研究。 - It made us to solve the synchronization problem for the diversity of signal type and the dynamical character in which appeared in the hybrid system. It is indispensability process to locate the state event for solving the synchronization problem.
在混合动态系统中，信号类型和动态的多样性，需要我们必须处理混合系统的同步问题，检测和定位状态事件是解决同步的必要步骤。 - As the increasing diversity of the radar system, it makes the signal reconnaissance, processing, classification, identification more difficulty.
雷达体制的多样化增加了信号侦察、处理、分类、识别的难度。 - The reason is that there are the diversity of the natural environment noise and the complexity of the speech signal itself.
由于自然环境中，噪声具有多样性以及语音信号本身的复杂性，语音增强算法也因环境的不同而不同。