| VHF/UHF调频无线电话信号的边带频谱 |
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| 引用本文： | 芮银海,童雅月.VHF/UHF调频无线电话信号的边带频谱[J].河海大学常州分校学报,1994(3). |
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| 作者姓名： | 芮银海 童雅月 |
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| 作者单位： | 河海大学机械学院电子工程系 |
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| 摘 要： | 目前,广泛应用的VHF/UHF无线电话大多采用调频制式,其已调信号的频谱分布不仅涉及频道间隔、允许带宽、调制限制及邻道发射等技术指标,也涉及系统、组网、管理等众多有关问题.因此,现行标准对调频无线电话信号的边带频谱作了定最要求.本文就此问题阐述了不同看法,并对一些典型已调信号的频谱进行了计算、分析.从而得出了不同的结论.
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| 关 键 词： | 边带频谱 频道间隔 允许带宽 最大允许频偏 邻道发射 |
The Sideband Spectrum of VHF/UHF Radiophone Signal in Frequency Modulation |
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| Rui Yinhai Tong Yayue.The Sideband Spectrum of VHF/UHF Radiophone Signal in Frequency Modulation[J].Journal of Hohai University Changzhou,1994(3). |
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| Authors: | Rui Yinhai Tong Yayue |
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| Institution: | Rui Yinhai Tong Yayue |
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| Abstract: | Widely used VHF/UHF radiophone applys frequency modulation mostly at present. The spectrum distribution of the modulated signal is not only related to the technical targets, such as the channel spacing, permissible bandwidth, modulation limiting and ad-(?)cent channel emission, but also related to the system, network, management and so on. Therefore, the ration requirement has been made to the sideband spectrum of radiophone signal in frequency modulation in the present standard. In this paper, a different viewpoint has been presented and the spectrum of some typical modulatied signals has been calculated analysed and the different conclusion has been obtained. |
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| Keywords: | Dideband spectrum Channel spacing Permissible bandwidth Maximum permissible frequency deviation Adjacent channel emission |
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