| 引用本文: | 吴成禧.静止图象传输系统中彩色电视图象 HO-DPCM 编码.[J].国防科技大学学报,1982,(1):89-104.[点击复制] |
| Wu Chengxi.HO-DPCM Encoding of Color Composite Television Signals for the Transmission System of Freeze Picture[J].Journal of National University of Defense Technology,1982,(1):89-104[点击复制] |
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| 静止图象传输系统中彩色电视图象 HO-DPCM 编码 |
| 吴成禧 |
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| 摘要: |
| 本文讨论了HO-DPCM(High Order-DPCM)编码对彩色复合电视信号的预测和量化问题。分析了线性预测回路和量化误差反馈回路的级联系统与 DPCM 系统之间的等效性。为了提高零频和彩色付载频的预测精度，提出了对复合彩色电视视图象 HO-DPCM 编码器的预测回路和量化器的量化特性的设计原则。 |
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| 投稿日期：1981-08-11 |
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| HO-DPCM Encoding of Color Composite Television Signals for the Transmission System of Freeze Picture |
| Wu Chengxi |
| Abstract: |
| The paper discusses the problem about the prediction and quantization of color composite television signals for HO-DPCM encoding. Here We analyse equivalence between the DPCM system and the cascade system composed of linear predictive circuit and quantizing noise feedback loop; in order to improve the predictive accuracy of zero frequency and subcarrier frequency，the design principles of predictive loop and quantizer characteristic for HO-DPCM Coder are developed. |
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