| 单芯电缆高速传输井下视频数据技术 |
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| 引用本文： | 张家田,邓程华.单芯电缆高速传输井下视频数据技术[J].石油仪器,2006,20(4):8-10. |
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| 作者姓名： | 张家田 邓程华 |
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| 作者单位： | 西安石油大学电子工程学院,陕西,西安,710065 |
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| 摘 要： | 文章介绍了单芯电缆高速传输井下视频数据技术的电路实现。压缩处理后的图像信号经过调制、放大、隔离，由3000m单芯铠装电缆传输到地面，在地面进行阻抗匹配和解调提取信号。系统采用2ASK（二进制振幅键控）调制方式，传输速率达到1Mb／s。地面利用复杂可编程逻辑器件CPLD实现数据的解调。
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| 关 键 词： | 单芯电缆 传输 调制 解调 |
| 文章编号： | 1004-9134（2006）04-0008-03 |
| 收稿时间： | 2006-03-14 |
| 修稿时间： | 2006-03-14 |
High Speed Down-hole Transmission Technology of Video Data With a Single Cable |
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| Zhang Jiatian,Deng Chenghua.High Speed Down-hole Transmission Technology of Video Data With a Single Cable[J].Petroleum Instruments,2006,20(4):8-10. |
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| Authors: | Zhang Jiatian Deng Chenghua |
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| Affiliation: | Zhang Jiatian and Deng Chenghua. |
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| Abstract: | High speed down-hole transmission technology of video data with a single cable is introduced in this article.Image signal,after compressing process,is modulated,amplified,isolated,and transmitted to the ground through 3000m single armored cable.It is,then,extracted through impedance matching and demodulating.Binary Amplitude-Shift Keying(2ASK) modulation is applied in this processing system.The transmission speed reaches to 1Mbps.Complex programmable logic device(CPLD) is finally used in the ground decoding process and then the data is demodulated. |
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| Keywords: | single cable transmission modulation demodulation |
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