1) differential encoding
差分编码
1.
32 standard are discussed in the paper,including the differential encoding,convolution encoding and Viterbi decoding,and the simulation results,which shows TCM Coding can improve the performance of the system.
32标准下32QAM-TCM仿真的具体细节,包括差分编码、卷积编码及维特比译码等部分,并给出仿真的结果,说明了TCM编码对系统性能的改善。
2.
32,including convolutional encoding,differential encoding and Viterbi decoding.
32建议给出的8状态32QAM 网格编码调制,包括卷积码编码,差分编码及维特比译码等部分。
3.
For the SOAP request, it realizes differential encoding by adding SOAP message skeleton, for the SOAP response, it compresses long message or realizes differential encoding of the short SOAP message.
对于SOAP请求消息,采用增加消息模版的方式实现差分编码,对于SOAP响应消息,根据消息的长短分别采用压缩或差分的方法来优化,减少带宽占用,使Web服务得到优化。
2) differential coding
差分编码
1.
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。
2.
Relationship is established in the transmitter using differential coding between the difference in SOPs of the optical signals in consecutive symbol periods and the input symbol of the differential encoder.
提出一种在电域进行四进制差分编码的偏振移位键控通信系统,可克服单模光纤中光偏振态随机扰动对接收效果的影响。
3.
Firstly,it is easy to predict the pixel s value;secondly,it reduces the relativity of the coded data by the differential coding technique that is beneficial to improving the compression capability.
在研究以往编码技术的基础上,根据差分编码的思想提出了一种基于灰预测的编码技术。
3) differential code
差分编码
1.
Based on the 16QAM Satellite Burst signal, this paper introduces the application of differential code to 16QAM communication system, and performs the computer simulation of 16QAM communication system by using Matlab to testfy it.
本文针对实际工作中接收到的16QAM卫星突发信号,对差分编码在16QAM传输系统中的具体应用进行了研究,并通过基于Matlab的计算机仿真进行了检验。
4) differential coding and decoding
差分编译码
1.
The correcting capability of the quadriphase differential coding and decoding is also analysed in theory.
对四相差分编译码的校正能力作出了理论上的分析。
5) block differential encoding
分组差分编码
1.
Based on the representation of the quadrature phase-shift keying(QPSK) as a continuous phase modulation(CPM) by adopting a block differential encoding rule,a novel modulation scheme called shaped quadrature phase-shift keying(SQPSK) is presented for the request of the deep-space communications that signal should be constant envelope.
采用一种分组差分编码的规则将QPSK表示成连续相位调制的形式,从而提出了一种适用于深空通信中使信号满足恒定包络要求的成形正交相移键控(SQPSK)调制方法。
6) 2DPSK
差分编码移相键
1.
The simulation design of the overall structure and the sub-modules of a 2DPSK communication system are finished according to the principle of binary difference code phase-shift keying(2DPSK) by using MATLAB.
以旋转导向钻井工具的井下短程通讯为研究背景,根据二进制差分编码移相键控(2DPSK)工作原理,利用MATLAB软件实现了2DPSK通讯系统的总体结构及其子模块的仿真设计。
补充资料：差分模式
分子式：
CAS号：
性质：在红外光谱分析中，当所记录的某特征吸收，与两个振动频率能级间的能量差，恰好对应一致，则称为差分模式。此外，如果某个处于受激振动态的分子，又吸收(或释放)另外的辐射能，其振动模式则变更为另一振动能级，最后所测吸收应为两者之代数和。
CAS号：
性质：在红外光谱分析中，当所记录的某特征吸收，与两个振动频率能级间的能量差，恰好对应一致，则称为差分模式。此外，如果某个处于受激振动态的分子，又吸收(或释放)另外的辐射能，其振动模式则变更为另一振动能级，最后所测吸收应为两者之代数和。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条