2 . aiming at the convolutional code with long encoding restriction we adopt the fano sequential decoding algorithm to implement the decoder 2 、针对编码约束度比较大的卷积码,采用fano序列译码算法来实现译码。
2.
We mainly improve the calculation of the fano metric on the basis of the original decoding algorithm , which enhance the decoder ’ s speed 并在原有算法的基础上进行了一些改进,主要是针对其fano度量计算的改进,提高了译码器的工作速度。
3.
A particular ir feature ( primarily denoted as fano - like spectral feature ) has been observed for the first time , when co is adsorbed on island films of particular structure 本论文首次观察到特定纳米结构薄膜(厚度大于13nm ,岛状结构)材料的fano类型光谱特征( fano - likespectralfeature ) 。
4.
The iess 309 standard indicates two decoding methods , we focus on the systemic convolutional code with long encoding restriction which is 36 bit and adopt the fano sequential decoding algorithm to implement the decoder 在协议中规定了两种译码的方式,我们主要是针对编码约束度为36的系统卷积码,采用fano序列译码算法来实现其译码,并进行了仿真。
5.
There are many decoding schemes for convolutional code , such as sequence decoding algorithm , fano algorithm , viterbi algorithm . but in fact , what ' s used widely is viterbi decoding algorithm . the viterbi decoding algorithm , proposed in 1967 by viterbi , is a decoding process for convolutional codes in memory - less channel , which takes full advantage of convolutional codes . since viterbi algorithm is proposed , it has obtained rapid development whether in theoretics or in practice and been applied to all kinds of data transmission systems , especially to digital wireless communications and deep space communications 卷积码的译码算法方案有很多,如序列译码算法、 fano算法、 viterbi算法,但是真正大规模应用的还是viterbi算法。 viterbi译码算法是1967年viterbi提出的,它是一种对无记忆信道卷积码进行译码的算法。它充分发挥了卷积码的特点,因而自viterbi算法提出以来,无论在理论上还是在实践上都得到了极其迅速的发展,并广泛的应用于各种数据传输系统,特别是无线通信和卫星通信系统中。