分组编码 meaning in Chinese
block coding
block encoding
blocked encoding
groucoding
Examples
- Wavelet transform based image compression using a new grouping and error concealment scheme
基于小波域的图像压缩分组编码及其差错隐藏 - 9 - track , 12 . 7 mm wide magnetic tape for information interchange - format and recording using group coding at 246 cpmm
信息交换用9磁道12 . 7mm磁带. 246cpmm分组编码格式和记录 - This thesis analyzed the error performance of mfsk and mpsk modulator in hf with optimal receiver , studied the shortcoming and strongpoint of several typical short - wave data transmission systems and their performance over fading and intersymbol interference channels . the theory and key technical of adaptive modem is discussed . in the last , an efficient modulation scheme - block coded modulation is introduced into hf radio systems to improve the efficiency of hf data transmission , this paper also proposes a hf data transmission system scheme composed of a block coded modulator and a decision feedback type adaptive equalizer
本文在对短波数传两种常见调制方式fsk及psk最佳解调性能分析的基础上，讨论了几种采用典型调制技术的短波数传系统(如时频调制、多进制频移键控慢跳频、 chess系统)原理、优缺点以及抗衰落和抗符号间干扰的性能；分析了自适应串行数传系统抗短波信道衰落和多径干扰的原理、关键技术；在本文的最后引入一种有望解决短波数传系统低效率状况的调制方式bcm -分组编码调制，给出了一个采用bcm技术与自适应均衡技术相结合的短波数传系统方案，并通过计算机模拟进行了初部验证。 - We propose several watermarking techniques after analyzing other watermarking methods detailedly . the main contributions can be summarized as following : ( 1 ) based on previous work , we proposed an improved spatial self - embedding watermarking technique . we save the quantized dct coefficients using group encoding while not using bit matrix which restricts saving bit length of each dct coefficient
本文的创新之处总结如下： ( 1 )提出了一种改进的具有修复功能的空域自嵌入水印算法，利用分组编码保存量化后的dct系数，改善了修复效果，克服了以往使用位图矩阵的不足，具有通用性与实用性。