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引用次数: 0
摘要
本文研究了基于DVB-S标准的卫星电视数字信号标准DVB-S和DVB-S2的描述和接收。EN 300 421 V1.1.2和DVB-S2 ETSI EN 302 307 V1.2.1。本文的目的是对DVB-S2的调制技术进行理论分析。阐述了DVB-S2标准调制器和调制的理论知识，有助于从理论上理解DVB-S2标准中的调制器功能，同时也有助于将仿真得到的理想星座与实际测量结果进行比较。测量本身是在Crazy Scan和EBS Pro软件环境中进行的，重点关注卫星在Astra $23.5^{\circ}\mathrm{E}$和Astra $19.2^{\circ}\mathrm{E}$位置的卫星信号。
The work deals with the description and reception of satellite TV digital signal standard DVB-S and DVB-S2, based on DVB-S standards. EN 300 421 V1.1.2 and DVB-S2 ETSI EN 302 307 V1.2.1. The aim of the work is a theoretical analysis of the modulation techniques of DVB-S2. Theoretical knowledge of modulator and modulation of DVB-S2 standard is demonstrated which serves for a theoretical understanding of the modulator function in the DVB-S2 standard and at the same time for a comparison of ideal constellations obtained by simulations with real measurement results. The measurement itself was performed in the Crazy Scan and EBS Pro software environment, focusing on the satellite signal from the satellites at the Astra $23.5^{\circ}\mathrm{E}$ and Astra $19.2^{\circ}\mathrm{E}$ positions.
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