| 1. | This paper deals with the design and development of a real - time encoding system for mp3 player based on dsp
本文论述了基于dsp的mp3随身听实时编码适配器系统的设计与开发技术。 |
| 2. | In many practical applications of h . 26l , real - time encoding is often required , but nowadays real - time can hardly be achieved on a single state - of - the - art computer
在h . 26l的实际应用中，很多情况都需要进行视频的实时压缩编码，这对编码器的运算性能要求很高。 |
| 3. | Focusing on the feature of vliw , optimized mpeg audio encoding algorithm fixed - point parallelized programe . practising the real - time encoding of mpeg layer ii based on map - cadsp
对mpeg音频编码算法进行算法的优化和定点化，从而可以在性价比较高的定点dsp上实现mpeg音频编码。 |
| 4. | The experimental results show that the compressed average bit is 8 . 3674 , 1 . 2442 bits less than the original entropy , and the efficiency of rice coding achieves 98 . 81 % . and the algorithm also has the advantage of real - time encoding in the system
经过无损压缩算法处理,管道泄漏信号压缩后的平均位数达到8 . 3674bits ,比原始信息熵降低了1 . 2442bits ; rice编码的编码效率达到了98 . 81 % 。 |
| 5. | Cascaded low - density erasure codes are based on sparse random bipartite graphs . very efficient linear time encoding and erasure recover algorithms with the arbitrarily near erasure channel capacity performance of the codes with respect to the algorithms have made them one of the most optimal coding techniques up to now
基于稀疏随机二部图的级联型低密度纠删码因其线性时间的编译码算法和可任意逼近删除信道容量限而成为目前最佳编码技术之一。 |
| 6. | Erasure codes which belong to standard classes of rs codes and their erasure correcting principles are introduced with emphasis on cascaded low - density erasure codes with linear time encoding and erasure recover algorithms . the encoding and decoding complexities of these codes are analyzed . 2
介绍了标准的rs码类纠删码及其纠删原理，重点介绍了具有线性时间编码和恢复算法的渐近好码?级联型低密度纠删码，分析了这几类纠删码的编译码复杂度； 2 |
| 7. | The principles of erasure codes used under binary erasure channels are summarized and erasure codes which belong to standard classes of rs codes are introduced with emphasis on cascaded low - density erasure codes with linear time encoding and erasure recover algorithms . thresholds of regular degree distributions are analyzed . it is shown that low - density erasure codes based on ( d , 2d ) - regular sequences of degree distribution are not close to optimal ( d 3 ) . two pares of irregular degree distribution sequences are introduced and a pare of improved right regular sequences of low - density erasure codes are presented , it is testified that the new sequences are asymptotically quasi - optimal . in the meantime , simulations of cascaded low - density erasure codes based on a few types of special sequences of degree distribution available are given , together with performance analyses on these codes
阐述了应用于删除信道下的纠删码基本原理，介绍了两类标准的rs码类纠删码，重点分析了具有线性时间编码和恢复算法的渐近好码?级联型低密度纠删码，分析了正则度分布的阈值，对正则低密度校验码在删除信道下的纠错性能进行了仿真，从理论上证明了基于( d ， 2d ) -正则度序列的低密度纠删码都不是渐近最优码( d 3 ) ，同时还分析了非正则低密度校验码的度序列设计，基于右边正则序列提出了一种改进型右边正则序列，证明了此序列为渐近拟最优的，对基于几类现有典型度分布序列的级联型低密度纠删码进行了模拟仿真及性能分析； 3 |
| 8. | A new remote sensing image coding scheme based on the biorthogonal wavelet transform and revised spiht algorithm is proposed according to the statistical characteristic of remote sensing image data . the experimental results show that the proposed scheme could largely speed up the encoding process and reduce computational complexity on condition that reconstructed image quality is sacrificed little . meanwhile , this scheme has advantage over other algorithms in real time encoding
本文针对遥感图像的数据特点，提出了结合双正交小波变换和改进spiht算法的内嵌小波编码方案.实验结果表明，本文的方法能够在几乎不降低恢复图像质量的前提下降低了计算复杂度，提高了编码速度，有利于实时编码 |
