Of course, skipping this strength calculation saves some decoding time as well. 当然,跳过这个强度计算可以节省一些解码时间。
The problem of adaptive decoding of space time trellis code ( STTC) on the mobile wireless channels is considered in this paper. 本文探讨了无线移动信道中空时格形码的一种自适应解码技术。
The decoding in time domain is shown be simpler in a binary system; 分析结果表明:在译二进制码时,时域算法的运算量较少、实现比较容易;
But it needs many times of iteration in decoding, which results in long decoding time delay. 但为了得到其优异的性能,在译码过程中需要进行多次迭代,这造成巨大的译码延时。
Principle and Software Implementation of RS Code Decoding in Time Domain RS码的译码算法及软件实现
Viterbi algorithm is a kind of maximum likelihood decoding method, which can obtain high decoding speed and cost fixed decoding time, so it is widely used in deep space communication. 维特比译码算法是一种最大似然译码,它可以得到较高的译码速度以及译码计算时间固定,因而在深空通信中得到广泛应用。
Soft decision Adaptive Decoding of Space time Trellis Code Based on Bi directional Per survivor Processing 基于双向逐幸存路径处理的空时格形码软判决自适应解码
Based upon the conventional BCH coding and decoding circuit, the table examining decoding method with the advantage of simple circuit and less decoding time is proposed, and its applicable range is also discussed. 在常规BCH编译码电路的基础上,提出了电路简单、译码速度较快的查表译码法,并讨论了它的适用范围。
And sliding window is applied to reduce decoding time further; 为进一步减少解码时间,在解码过程中引入了滑动窗技术。
It has low complexity, the decoding algorithm is essentially parallel, so it is suitable to realize on hardware in parallel and reduce the decoding delay time. 译码算法本质上是并行算法,有利于硬件的并行实现,减少译码延时;
Prediction module is researched and analyzed in arithmetic, on the base of particular research of new international video encoding standard H. 264/ AVC and the characteristic of HDTV's high demand on decoding time. 根据HDTV(高清晰数字电视)对解码实时性要求高的特点,本文在详细研究最新国际视频编码标准H。
In this scheme, decoding time of each frame is predicted using moving-average method before the frame is decoded. The voltage of CPU to decoding is switched dynamically with predictive results in order to reduce energy consumption. 该方法采用移动平均法预测帧的解码时间,依据预测的结果动态地调节解码过程中微处理器的工作电压,降低能量消耗。
According to the characteristics of UT signal, this paper puts forward two ways of digital decoding: Time Domain Analysis and Frequency Domain Analysis. 根据UT信号的特征,从时域和频域角度提出了两种数字译码方法。
Propose the ordered sphere decoder so that it can process the constellation with any shape and quicken the decoding time. 提出排序的球形译码算法,能处理任意形状的星座图信号,降低译码时间。
Sliding window technique can reduce the requirement of memory and lower the decoding time in turbo decoding. 滑动窗口(简称滑窗)技术在turbo译码中可以降低对存储空间的需求和减小译码时间。
The simulation results show that, compared with binary convolutional codes and Turbo codes, nonbinary dual-k codes can be regarded as a tradeoff among bit error rate ( BER), computations and decoding time delay, and it can be applied to M-ary orthogonal modulation systems. 结果表明,与二进制卷积码和Turbo码相比,非二进制双k码作为一种误比特率、计算量及译码时延的折衷方案,可以应用于正交调制系统。
The decoding algorithm is the kernel technique of RS code, and the step-by-step algorithm doesn ′ t need to search the error location polynomial, so it saves the decoding time compared with the traditional ones. 其译码算法是实现RS码的核心,Step-by-step算法与传统的译码算法相比,不用计算错误位置多项式,可以大大地节省译码时间。
Theoretical proved that relative to the random linear network coding, the successful decoding probability of joint block random network coding is increasing, but the decoding time is reduced. 通过理论证明,应用反馈机制后,相对于随机网络编码,联合分块网络编码成功解码的概率提高了,而解码时间复杂度降低了。
However, the high decoding time delay of Turbo codes can not be ignored, and it is a key factor preventing its application. 但是,Turbo码的高译码延时不容忽视,它也成为阻碍Turbo码应用的一个主要因素。
The adoption of parallel remainder calculator and modified key equation accelerate decoding process. And the discovery of a new way reduces the iterations of the calculation of the error polynomial, which also contributes to cut down the expenditure of decoding time. 采用并行的余式计算方式和改进的余式译码关键方程,减少错误多项式求解的迭代次数,缩短了译码的时间开销。
This dissertation studies several key issues of coherent and noncoherent space-time code. The structure of the dissertation is classified into following parts: 1.Propose the ordered sphere decoder so that it can process the constellation with any shape and quicken the decoding time. 本文对相干和非相干空时码的若干关键技术问题进行了研究,主要内容是:1.提出排序的球形译码算法,能处理任意形状的星座图信号,降低译码时间。
In this paper, six restrictions are added to the existing sequential search algorithm using stack of error resilient arithmetic coding, which significantly delete the invalid decoding path and reduce the decoding time and the stack capacity. 本文对现有的纠错算术编码的堆栈序列译码算法增加了6个限制条件,从而显著删除了无效译码路径,减少了译码时间和堆栈容量。
Experimental results show that the proposed architecture saves 27.9%, 18.2% and 48.8% of the decoding time compared with the reference decoder in I frame, P frame and B frame, respectively. 实验表明,相比普通的基于码字解码的熵解码器,本文提出的基于语法元素的解码器在解码I帧、P帧和B帧时能够分别节省27.9%、18.2%和48.8%的时间。
In the entropy decoding stage, entropy decoding algorithm was improved combined with the construction of the Huffman tree, so the decoding time does not change with the size of code length. 在熵解码阶段,结合哈夫曼树的构建规律,改进熵解码算法,使得各码字解码时间不因码长的大小而改变。
Decoding time is transferred to encoder through feedback channel, and the system exists communication delay. 解码器的时间通过反馈通道传输给编码端,系统存在通信延迟。
Experimental results show, the proposed algorithm can code simply and get a high compression. Moreover, it can effectively reduce the system decoding time and get a better quality of reconstructed image. 实验结果表明,这种新的图像编码算法具有编码简单,压缩率高的优点;所设计的并行算法能够有效降低系统解码时间,重建图像质量更好。
Some heuristic rules are added to make the final decoding time decrease sharply. 同时增加了一些启发式规则,使得译码所需时间大为降低。