By using truncation and sideband invariant switch like a cyclic shift, etc., the initial CAZAC sequence can be modified. 使用截断和边带不变量转换,如循环移位等,对初始的CAZAC序列进行修改。
Cyclic shift permutation structure is an important part of partial parallel decoder for quasi-cyclic LDPC codes. 循环移位置换单元是准循环LDPC码的部分并行译码器的重要组成部分。
The cyclic shift character of base phasor in DFT is proposed and approved first in this paper. 提出并证明了离散傅里叶变换的基相量循环移位性质。
An LDPC code structure using cyclic shift matrices and an efficient LDPC code construction algorithm using the characteristic matrices is proposed. 本文研究了一种基于循环移位矩阵结构的LDPC码,提出了一种高效的基于特征矩阵的LDPC码构造算法。
Among its challenges, cyclic cosmology still needs to explain the vast shift of scale between aeons, as well as why it requires all particles to lose their mass at some point in the future. 比如,循环宇宙模型必须解释在不同的“世代”之间变化时如何实现如此巨大时空尺度的变化,以及为何这一模型要求所有粒子在未来的某一时刻失去其质量。
The performance of a kind of MSK modulated cyclic shift M-ary direct-sequence spread spectrum communications system that employs RS ( n, k) coding in Rayleigh fading environment is analyzed in this paper, and the exact expression of bit error rate is given. 分析了采用RS(n,k)编码的一种在MSK调制方式下基于循环移位的M进制直接序列扩频通信系统在Rayleigh衰落信道中的性能,给出了准确的误码率公式。
A Q-matrix is a solution of a constraint satisfaction problem, which features a fast searching algorithm and can form the Q-matrix set by cyclic shift. Q矩阵是约束满足问题的解,具有快速搜索算法,并能用循环移位的方法获得Q矩阵集。
The influence of noise on diagnosis is minimized by the application of the cyclic shift tree denoising technique. The effects of phase space dimension, excitation points and measurement points on the singular spectrum entropy are discussed. 为了抑制噪声对诊断结果的影响,引入循环移位树降噪技术进行降噪处理,分析了相空间维数、激励点和测点对奇异谱熵的影响。
This paper has presented a new encoding and decoding algorithm for mapping optimal multi dimensional constellation shaping region truncated polydisc. This algorithm has used cyclic and shift operation to decrease memory space greatly and is amenable for implementing with DSP. 本文提出一种新的实现对多维星座最佳成形区域&截断多圆柱映射的编码和译码算法,该算法采用循环和移位操作大幅度地减少了存储空间,适合于用数字信号处理器实现。
Cyclic shift algorithm for edge detection of IR image 红外图像边缘检测的循环移位算法
A high accuracy and quick detection algorithm for phase and frequency of power fundamental wave based on the cyclic shift character of the base phasor 基于基相量循环移位的基波相位和频率高精度快速检测方法
The method of "Multicode correlation smoothing matching" has distinct predominance over the method of sequential search, it is a great efficiency and speed method for the code synchronization in cyclic code shift keying signaling blind detection. 多码字相关平滑匹配法相对于序贯检测法具有明显的优势是CCSK信号盲检测中实现码字同步的一种快速有效方法。
This paper introduces some application skill of FX2 series PLC cyclic shift instruction, which possess practical value. 介绍了FX2系列PLC循环移位指令的几种应用技巧,这些技巧具有实用价值。
Compared with the cyclic ambiguity function which estimates time delay and Doppler shift simultaneously, the proposed algorithm has much less computational complexity and almost equivalent estimation accuracy. 该方法的优良性能表现为:与同时估计时延与多普勒频移的循环模糊函数方法相比,在运算量大大减小的同时,又保持了很好的参数估计精度。
The spectra are combinations of window spectra of original orthogonal transforms, wherein the transforms generated by using H product have invariant property of power spectra for cyclic shift. All these methods are new tools for spectrum analysis and digital processing. 新的正交变换具有良好的谱域特性,它们的谱是原正交变换的窗谱组合,其中由H积生成的正交变换还具有对于循环移位的功率谱点不变性。
The application method of PLC cyclic shift instruction PLC循环移位指令的用法
By apply cyclic tension loading to several kinds of composite layer plates, the normal rule of residual stiffness shift were observed and it can be refer to a principle thereunder for optimization design of composite. 通过对多种复合材料层板循环拉伸加载,观察复合材料的剩余刚度变化的一般规律,为复合材料的优化设计提供必要的理论依据。
In order to solve the problem of reducing spectrum leakage, a new algorithm based on equal angle-interval sampling principle is proposed according to the cyclic shift character of base phasor. 就减少频谱泄漏问题,根据基相量循环移位性质提出了一种新的等角度间隔采样算法,并证明了该算法的递推特性。
The mechanism of the reaction was studied by the employment of control experiments with different enyne isomers and a π-allyl rhodium intermediate was suggested to explain the formation of the cyclic products with an intramolecular halogen shift. 利用各种烯炔异构体,通过合适的控制实验对反应机理进行了研究.提出了涉及π-烯丙基铑中间体的可能机理,并且利用该机理对一些反应现象进行了解释。
The cyclic voltammetry curves revealed the oxidation-reduction potential shift in the reaction system of the non-uniformly doped TiO2 thin film under UV irradiation, which indicated that the inner electric field formed. 循环伏安曲线表明,光照时Ni非均匀掺杂的TiO2薄膜改变了体系的氧化还原电位,说明了薄膜内建电场的建立。
In this article, improved Hamming distance is brought out to calculate and cyclic shift the coding method to match the iris. 本文通过改进的Hamming距离计算和循环移位编码方法对虹膜进行匹配。
The algorithm uses the Hamming distance classifier, searching the minimum distance of iris codes as the basis for the final match after cyclic shift. 该算法采用Hamming距离分类器,通过虹膜编码的循环移位搜寻最小距离值作为最终匹配依据。
This algorithm adopts grouped combination channel estimation and tracking methods based on cyclic shift property of the pilots in order to utilize both time and frequency correlation of channel response. 为了利用信道响应的时域和频域相关特性,根据导频循环移位的特点提出了分组联合信道估计及跟踪的方法。
Joint coding technology to send data stream by treating joint coding done to improve the system diversity gain, cyclic delay each antenna technology to transmit data on the cyclic shift, equivalent exacerbated the frequency selective channel excavated frequency diversity system. 联合编码技术通过对待发送数据流做联合编码处理来提高系统分集增益,循环延迟技术对每个天线上的发送数据进行循环移位,等效加剧了信道的频率选择性,挖掘了系统的频率分集。
The de-multiplexing reference signal includes ZC sequence conjugate multiplication, forced to zero, IDFT, temporal filtering, time-domain cyclic shift, DFT and zero truncated processing process. 多用户参考信号解复用技术包括ZC序列共轭相乘、迫零处理、IDFT处理、时域滤波、时域循环移位、DFT与去零处理等过程。
The encoded data is greatly reduced, the speed of feature extraction improved significantly. Thirdly, the cyclic shift algorithm is used to solve the matching distortion caused by eye rotation. 实验结果表明,编码的数据量大为减少,特征提取的速度明显提升。最后,针对由眼睛旋转所引起的匹配失真,采用了解决该问题的循环移位匹配算法。
If in the same time a number of scan chains need to modify the data bit can only repeat the process of cyclic shift. 然而,如果同一时刻有多条扫描链的数据位需要修改时,只能重复循环移位的过程。
After summarizing the existing choosing method for the cyclic shift, a measure that independent of the sending antenna index is proposed. 然后基于对前人工作的总结,提出了一种改进的循环延迟量的选取方法,该方法不需要判断发送天线序号。
A new method of channel estimation based on the characters of ZC sequence and cyclic shift has been proposed and used to get the value of channel transfer function ( CTF). 通过研究SRS序列的特点,提出了一种新型的基于ZC序列性质和循环移位特点的信道估计方式,并用于接收端估计信道转移函数(CTF)。
Compared to Benes exchange structure and Reverse Banyan exchange structure, the novel structure increases the exchange speed for information cyclic shift and occupies less hardware resource and area. 相比Benes和ReverseBanyan等交换结构,设计的新型循环移位置换单元提高了信息循环移位交换的速率,且占用较少的硬件资源和面积。