地面数字电视广播发射机严格频谱模板测试分析

Analysis on Strict Spectrum Template Test for Digital Terrestrial Television Broadcasting Transmitters

广电5G与地面数字电视36频道仅有1MHz频谱间隔,36频道的地面数字电视广播发射机需满足严格条件下的频谱模版要求。本文首先对影响频谱模版的要素进行了分析,其次提出了3种严格频谱模板的测试方法,最后对测试结果进行了比较分析,提出了测试建议。

The China Broadcast Network’s 5G and the digital terrestrial television broadcasting transmitters on Channel 36 are separated by 1MHz spectrum interval.Under these conditions,the digital terrestrial television broadcasting transmitters for Channel 36 are required to comply with strict spectrum template standards.This paper begins by analyzing the elements that affect spectrum characteristics.Subsequently,it introduces three rigorous methods for testing the strict spectrum template.Finally,it compares and analyzes the test results,offering recommendations for the testing process.