| 数字地震讯息的载波传输 |
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| 引用本文： | 赵翼晋. 数字地震讯息的载波传输[J]. 西南石油大学学报(自然科学版), 1982, 4(3): 77-86. DOI: 10.3863/j.issn.1000-2634.1982.03.007 |
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| 作者姓名： | 赵翼晋 |
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| 摘 要： | 本文提出了用载波传输法取代数字地震仪“大线”的数字地震载波传输仪的方案。发信机中采用瞬时增益放大器和调制来完成振幅压缩和模数转换,用频分调幅解决线路复用。具有结构简便、工作可靠、精度较高等特点。讨论了有关技术难点,并提出了相应解决措施。还给出了调制、脉码调制、模拟传输的优劣比较。
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CARRIER-WAVE TRANSMISSION OF DIGIT SIESMIC SIGNALS |
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| Zhao yi-jing. CARRIER-WAVE TRANSMISSION OF DIGIT SIESMIC SIGNALS[J]. Journal of Southwest Petroleum University(Seience & Technology Edition), 1982, 4(3): 77-86. DOI: 10.3863/j.issn.1000-2634.1982.03.007 |
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| Authors: | Zhao yi-jing |
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| Abstract: | The article presents a method of carrier-wave transmission of digit siesmic signals, which can replace the existing transmission by cable. In our device gain-instantaneous amplifier and delta-modulation are adopted in order to Constrict the amplitude and digitalyze. Channeling is accomplished by frequency-division amplitude modulation. Our transmitter is accurate, reliable and at the same time very simple in construction. Some technical problems and the methods to solve them are discussed in the article. |
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