| PAL行90°移相编码信号的研究 |
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| 引用本文： | 明军,刘严岩,唐鑫,刘放. PAL行90°移相编码信号的研究[J]. 安徽大学学报(自然科学版), 2002, 26(1): 62-65. DOI: 10.3969/j.issn.1000-2162.2002.01.012 |
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| 作者姓名： | 明军 刘严岩 唐鑫 刘放 |
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| 作者单位： | 1. 安徽大学,电子工程与信息科学系,安徽,合肥,230039;2. 安徽省计算中心,安徽,合肥,230031 |
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| 基金项目： | 安徽省自然科学基金;98JL0011; |
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| 摘 要： | 提出一种PAL行90°移相编码信号,给出了彩电解码电路理想状态和存在多种误差参量的条件下的输出结果及其相应的测量方法.理论分析表明:PAL行90°移相编码信号具有U分量逐行倒相编码信号和隔行色度信号特性,从而丰富了测试信号编码种类,为解码电路的自动化测量与调整带来了方便.
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| 关 键 词： | 电视测量 解码电路 测试信号 |
| 文章编号： | 1000-2162(2002)01-0062-04 |
| 修稿时间： | 2001-09-28 |
Study on PAL-line 90°Phase-shifted encoding signal |
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| MING Jun ,LIU Yan-yan ,TANG Xin ,LIU Fang. Study on PAL-line 90°Phase-shifted encoding signal[J]. Journal of Anhui University(Natural Sciences), 2002, 26(1): 62-65. DOI: 10.3969/j.issn.1000-2162.2002.01.012 |
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| Authors: | MING Jun LIU Yan-yan TANG Xin LIU Fang |
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| Affiliation: | MING Jun 1,LIU Yan-yan 1,TANG Xin 1,LIU Fang 2 |
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| Abstract: | In this paper, PAL-line 90°phase-shifted encoding signal is presented firstly, which is then used to analyze the decoding circuit's output results of color TV under ideal status or the condition of existing multiple error-parameters, and the measurement method of color TV's decoding circuit is derived finally. The theoretical analysis shows: PAL-line 90° phase-shifted encoding signal not only has the same character as U-component phase alternation line-by-line, but also has the characteristic of computable output of alternative-line color signal, and it brings great convenience for decoding circuit's automatic measurement and adjustment. |
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| Keywords: | television measurement decoding circuit test signal |
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