基于广播电视卫星上行站的质量检测系统性能研究

Research on the Performance of Quality Detection System Based on Broadcasting and Television Satellite Uplink Station

文章主要研究广播电视卫星上行站的信号质量检测设备性能。通过测试码流比对设备在不同条件下的性能,发现设备升级后的性能有显著改善。在受到单载波干扰的条件下,测试误码率检测设备的性能。结果表明,在测试系统受到干扰时,画面出现马赛克或黑场的情况,部分误码率检测设备的误码率会出现明显变化并触发信道告警门限,而相关专业质量检测设备在同样条件下的误码率却没有明显变化。这些发现为后续的设备优化提供了重要的参考。

This paper mainly studies the performance of signal quality detection equipment for radio and television satellite uplink stations.By testing the performance of the equipment under different conditions,it is found that the performance of the upgraded equipment has been significantly improved.Under the condition of single carrier interference,the performance of error rate detection equipment is tested.The results show that when the test system is disturbed,the picture will appear mosaic or black field,and the bit error rate of some bit error rate detection devices will change obviously and trigger the channel alarm threshold,while the bit error rate of related professional quality detection devices will not change obviously under the same conditions.These findings provide an important reference for subsequent equipment optimization.