frequency coding的例句大全

Time frequency coding underwater acoustic communication

时频编码水声通信技术研究

The basic framework for understanding of neural coding has been established: frequency coding, time coding and so on.

对于神经编码的认识已经建立了基本框架：频率编码和时间编码等。

Mixed coding method of remote sensing image based on wavelet package decomposing is that threshold of low frequency and high frequency coefficients decomposed by wavelet package is classified into important and unimportant coefficients.

基于小波包分解的遥感图像混合编码方法，首先将小波包分解后的低频和高频小波系数域值化为重要系数和非重要系数。

It integrated flip-latch, coding unit, data bus, frequency division unit, logical compare unit, counter and logic circuit into a single CPLD chip, and dramatically decreased PCB's area and increased system reliability.

在一片CPLD中集成了低位地址锁存、地址译码、数据总线、分频电路、比较、记数以及逻辑电路等。

A scheme for layered color image coding based on subband decomposition is proposed, in which color image can be divided into several subbands with different frequency through QMF ( Quadrature Mirror Filters) and coded for these subbands individually.

提出了一种基于子带分解的彩色图像分层编码方案，它通过正交镜像滤波器组把彩色图像分成不同频率的子带，并对其分别进行编码。

A subspace-based blind channel estimator has been developed for space time coding orthogonal frequency division multiplexing ( STC-OFDM) system with two transmit antennas and two receive antennas.

针对使用2个发射天线和2个接收天线并且采用循环前缀的空时编码正交频分复用系统（STC-OFDM），提出了一种信道盲估计算法，并给出信道可被辨识的条件。

The performance of a Multiple Input Multiple Output ( MIMO) system in ideal and non-ideal propagation conditions, which is established using Space Time Coding and Space Division Multiplexing techniques and operates in a wireless indoor environment in the 17 GHz frequency band is discussed.

讨论了MIMO系统在理想和非理想传输条件下的性能，系统工作在无线室内环境17GHz频宽内。

The traditional anti-jamming techniques-such as High-speed Frequency Hopping Technology, Spread Spectrum Coding Technology and Time Hopping Technology-are based on the degree of freedom in the frequency domain, or time domain to get the improvement of the anti-jamming performance.

传统的抗干扰技术例如高速跳频，扩频编码以及跳时技术都是分别以频率域，时间域上的自由度资源为基础来获得抗干扰性能的提升的。

Study on the Space-Time Coding for Frequency and Time Selective Fading Channels

频率和时间选择性衰落信道下的空时编码技术研究

in order to offer the gist of goods searching, reasonable goods coding ( according to the frequency of selling and clicking), searching rules and replacing flow have been designed.

为了提供商品替代的搜索依据，设计了合理的并能根据销售或点击情况动态变化的商品编码库、搜索规则及替代流程。

Multiple Input Multiple Output ( MIMO) antenna is a typical spatial diversity technique, by combining multiple antennas space-time block coding with orthogonal frequency division multiplexing ( OFDM) forming space-frequency block coding, In multipath channel fading conditions, which also can get additional frequency diversity gain.

多输入多输出天线既是一种空间分集技术，将多天线中的空时分组编码与正交频分复用技术相结合构成空频分组编码，在多径衰落信道条件下还可以获得额外多径分集增益。

Based on this, Space-Time Coding is offered, which can realize very high frequency efficiency and data transmission rate.

基于此，人们提出了空时编码（Space-Time Coding）技术，它能够实现非常高的频谱利用率和数据传输率。

An adaptive quantization coding method, completely compatible with the JPEG standard, was developed for compression of medical endoscope image. Double scanning were employed and quantization tables, recommended by JPEG, were modified according to frequency distribution characteristics of original image.

本文提出了一种与JPEG标准完全兼容的医用内窥镜图像自适应量化压缩编码方法，该方法采用二次扫描的措施，根据原始图像的频谱分布特点，自适应地修正JPEG推荐的量化表。

Based on the principle of carrier communication, an intelligent control system is presented, which applies single chip microcomputer and DTMF ( Dual Tone Multi Frequency) coding technique to realize remote control of objective load.

根据有线载波通信的原理和双音多频DTMF（Dual Tone Multi Frequency）编码，同时利用单片机实现对目标负载有线遥控的智能控制系统。

The frequency of Indel occurring in noncoding regions were eight times higher than that occurring in coding regions.

其中Indel在非编码区的发生频率是编码区的将近八倍。

by analyzing the pairwise error probability ( pep), we prove that the dsf ofdm system can achieve full diversity gain and maximum coding gains over frequency selective fading channel by choosing optimum rotation matrix.

成对错误概率分析表明：在频率选择性信道中，通过选择最佳的旋转矩阵，这种DSF OFDM系统能实现满分集增益和最大的编码增益。

a frequency domain technique of the variable-order speech coding

可变阶数语音编码模型的频域技术

making use of the features of mpeg-2 compression and stream of video frequency, this paper analyzes digital watermarking of intra-frame coding based on dct and brings forward an improved algorithm.

利用MPEG-2标准的压缩及视频流的特点，讨论了基于DCT变换帧内编码的水印嵌入方法，并提出一种改进的算法。

Blocking Effects Reduction in Transform Coding with Compensation in Frequency Domain

一种消除变换编码方块效应的频域补偿技术

However, most studies till now focused on the changes in frequency and intensity coding. Little is known about the changes in temporal coding features in the central auditory system after cochlear lesion.

这方面大多数的研究都集中在对频率和强度的处理方面，对耳蜗损伤引起的中枢听觉系统对时间处理方面的变化知道的很少。