We derive the condition of the space-frequency codes to achieve maximum achievable diversity gain.
其次，我们对适合频率选择性衰落信道的空频码提出了一些独创性的想法。
A novel design of OFDM-based space-frequency codes is proposed such that the maximum achievable diversity gain is available.
提出了一种基于OFDM达到最大可达分集增益的空频码设计方案。
Last, for the problem that the high decode complexity of space-frequency code, detailed steps of sphere decode algorithm is provided.
最后针对空频码解码采用最大似然译码复杂度较高的问题，给出了球形译码算法的详细步骤。
The complex sphere decoding has lower complexity compared with real sphere decoding for space-frequency block codes with PSK modulation.
对于PS K调制下的空频块码，复数球形译码相对实数球形译码有较低的复杂度。
The mechanism of the performance degration for space-frequency spectrum estimation due to ChannelMismatching and Sensor Coupling is analyzed.
分析了空间谱估计中多信号源方向和频率估计中通道失配和阵元互耦导致系统性能下降的机制。
Based on OFDM system, a novel space-frequency-time code which combined trellis-coded modulation with differential space-time block code was proposed.
基于OFDM(正交频分复用)系统，提出了一种新的空频时三维编码，将网格编码调制和差分空时分组码进行组合链接设计。
The finite difference depth migration equation in space-frequency domain can be derived when the radical expression is approximated by continued fraction.
采用连分式近似，可以得到空间频率域的有限差分深度偏移方程。
The differential coding is performed in the time domain, while the space-frequency coding is processed in the frequency domain to achieve the diversity ga.
该方法在时域进行差分编码，而在频域进行空频编码以获得分集增益。
In this paper, we propose a diagonal space-frequency (DSF) block codes over frequency-selective Rayleigh fading channels and study performance of the code.
本文提出了频率选择性瑞利衰落信道中的对角空频分组码(DSF)，研究了码的性能。
This letter present a differential space-frequency coded orthogonal frequency-division multiplexing (OFDM) scheme over frequency-selective fading channels.
本文提出了频率选择性衰变信道中采用了差分空频编码的正交频分复用(OFDM)传输方法。
The MIMO-OFDM channel estimation method is researched based on the system design, and a space-frequency domain optimal pilot-tones design algorithm is presented.
从系统设计角度研究了MIMO-OFDM系统的信道估计方法，提出一种基于空频域的最优导频设计算法。
Underwater acoustic channel is a time-space-frequency variant channel, having a character for narrow bandwidth, high ambient noise level and strong interference of multipath.
而由此构成的水声信道是一个空间与频率响应随机快速变化的传输信道，存在窄带、高噪及强多途干扰。
This grid of horizontal lines and we will know that if we're going from here to here, it's got to be exactly this frequency or at least this space.
这个水平线组成的网格，让我们知道，如果我们从这里到这里，正好是这样的频率或者至少是这个间隔。
Patterns in the data: the frequency of recurring patterns in the data determines how effective compression will be for a particular table space or partition.
数据中的模式：对于特定的表空间或分区，数据中重复出现的模式的出现频率将决定压缩的效果。
This grid of horizontal lines, and we will know that if we're going from here to here, it's got to be exactly this frequency, or at least this space.
这个水平线组成的网格，让我们知道，从这里到这里，正好是这样的频率，或者至少是这个间隔。
The Internet cookie Report page of the Security Space Web site offers some frequency analysis through associating the cookie names with the server that issues them.
SecuritySpaceWeb网站的InternetcookieReport网页通过将这些cookie的名称和发行它们的服务器联合起来，从而提供了一些频率分析。
The organizations will use stream-computing technology to analyze data from sensors that track high-frequency radio waves, the Swedish Institute of Space Physics (IRF) said in a statement.
这两家研究机构组成的研究小组将使用流运算技术来分析高频电磁波传感器记录的数据。按照研究小组的说法：“明年，这项计划中每秒需要处理的数据量高达6GB，而每小时的数据量则多达21600GB,后者几乎是互联网上所有网页大小的总和。”
IBM said in a statement that the data will be collected using antennae designed to monitor radio waves in three dimensions to sample high-frequency emissions from space.
按ibm的说法，他们将使用三维天线采集太空高频电磁波，并将采集到的信号送往计算机进行分析。
We have moved into a Rapid Healing Space of Frequency and are being given the technologies necessary for expediting this Healing.
我们已步入一个高速疗愈的频率区(RapidHealingSpace of Frequency)并正在被给予所必需的科技以促进疗愈。
It is the natural frequency of emission of the hydrogen atoms in space.
这是空间氢原子“释放”的自然频率。
It shows that the self-pumping type and pump-probe types bistable switching can both be realized in the same structure, and the latter can separate the pump and signal in frequency and space.
发现在二维耦合腔结构中，可以实现信号自泵浦和泵浦-信号两种类型的双稳态开关，且后者具有使泵浦和信号在频率和空间相分离的优点。
The space-time channel estimation and multiuser detection algorithm for the uplink of multicarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel were investigated.
研究了频率选择性瑞利衰落信道中的同步MC-CDMA系统上行链路空时信道估计及多用户检测算法。
In this paper, a method imaging with variant space frequency linear interferometric fringe is presented and is demonstrated by experiments.
本文提出利用变空间频率直线干涉条纹对目标成像的方法，并用实验进行验证。
According to optical transfer function, degree of modulation and apperceive degree of space frequency vision vs object image, TIFF grayscale scenograph is made.
根据光学传递函数、调制度和空间频率视觉及对物象的感知程度，制作TIFF格式透视灰度图。
This paper investigates blind space-time interference suppression for MultiCarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel.
该文研究在频率选择性瑞利衰落信道中MC-CDMA系统的盲空时干扰抑制。
The space frequency distribution on rear focal plane restores to the distribution of complex amplitude on image plane.
后焦面上的频率分布还原成像面上的光场复振幅空间分布。
Contrasted with the methods in time space domain, this one has high computation efficiency and is prone to image, because all its computation is in frequency space domain.
当在频率-空间域进行计算时，相对于纯粹的时间-空间域有限差分算法有计算效率高、成像方便的优点。
The traditional neural network correction has a good adaptivity to the noise. But with a stronger low frequency space noise, the correction effect is very poor.
传统的神经网络非均匀性校正算法对噪声具有较好的自适应性，但当空间低频噪声较大时，校正效果明显下降。
There are six grades of space frequency, twelve grades of time frequency, twelve grades of visual field and different showing-time for each patterns.
该装置可以显示水平光栅、垂直光栅和棋格信号，具有六档不同的空间频率、十二档时间频率、十二档视野范围和显示时间控制。
There are six grades of space frequency, twelve grades of time frequency, twelve grades of visual field and different showing-time for each patterns.
该装置可以显示水平光栅、垂直光栅和棋格信号，具有六档不同的空间频率、十二档时间频率、十二档视野范围和显示时间控制。
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