| 平滑调频技术及其在Polyseis系统中的应用(下) |
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| 引用本文： | 韩汝春.平滑调频技术及其在Polyseis系统中的应用(下)[J].物探装备,2000(1). |
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| 作者姓名： | 韩汝春 |
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| 作者单位： | 石油地球物理勘探局特种装备勘探处 |
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| 摘 要： | 平滑调频(TFM)技术是一种新型的用于数据传输的调制技术,其主要特点是带外辐射小、频带利用率高,能很好地应用于窄带数据传输。同时,其发射机和接收机结构都比较简单。本文介绍了平滑调频用于数据传输的基本原理和性能,以及它在PoIyseis地震数据采集系统中的应用。
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| 关 键 词： | TFM 功率谱密度 传输函数 Polyseis |
ramed Frequency Modulation and application in Polyseis system. |
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| Han Ruchun..ramed Frequency Modulation and application in Polyseis system.[J].Equipment for Geophysical Prospecting,2000(1). |
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| Authors: | Han Ruchun |
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| Affiliation: | Han Ruchun. |
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| Abstract: | This paper describes a new type of frequency modulation, called Tamed Frequency Modulation (TFM) for digital transmission. The main advantage of TFM are as follows; the out-of-band radiation is substantially less than other modulation techniques, the utilization rate of band is higher and desired used in narrow-band digital transmission, moreover, the structure of its transmitter and receiver is very simple. This paper introduces the basic principle of TFM and its application in Polyseis system. |
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| Keywords: | TFM power spectral density transfer function Polyseis |
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