| 数字卫星电视接收关键技术探讨 |
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| 引用本文： | 卢洪武.数字卫星电视接收关键技术探讨[J].山东师范大学学报(自然科学版),2004,19(1):34-36. |
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| 作者姓名： | 卢洪武 |
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| 作者单位： | 山东师范大学传播学院,250014,济南 |
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| 基金项目： | 山东省自然科学基金资助项目 ( 115 0 12 ) |
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| 摘 要： | 探讨了数字卫星电视接收的几项关键技术，指出留足门限余量；减少相位噪声；实现极化匹配；选择本振频率准确度和稳定度高的高频头(LNB)；避开同频干扰是保证数字卫星电视信号良好接收的关键。
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| 关 键 词： | 数字卫星电视 接收技术 天线极化调整 门限余量 相位噪声 高频头 |
THE DISCUSSION OF PRVOCAL TECHNOLOGY OF THE SATELLITE DIGITAL- TELEVISION RECEIVING SYSTEM |
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| Lu Hongwu.THE DISCUSSION OF PRVOCAL TECHNOLOGY OF THE SATELLITE DIGITAL- TELEVISION RECEIVING SYSTEM[J].Journal of Shandong Normal University(Natural Science),2004,19(1):34-36. |
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| Authors: | Lu Hongwu |
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| Abstract: | A few of critical techniques about satellite digital-TV receiving are discussed,which include leaving enough threshold voltage value,reducing phase noise,realizing polarization match,selecting LNB of high steady local oscillator,and avoiding disturbing from the same frequency.They are the prvocal techniques that assure receiving excellent digital satellite TV signal. |
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| Keywords: | satellite digital-television DVB-S receiving antenna |
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