| 残留边带调制包络检波法原理研究 |
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| 引用本文： | 宋金玲,赵培培.残留边带调制包络检波法原理研究[J].徐州师范大学学报(自然科学版),2004,22(4):27-30. |
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| 作者姓名： | 宋金玲 赵培培 |
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| 作者单位： | 中国矿业大学,信息与电气工程学院,江苏,徐州,221008 |
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| 摘 要： | 从残留边带(VSB)调制原理出发，提出一种在发送端发射强载波。从而用包络检波法对、VSB进行解调的方法，并对其抗噪声性能进行了详细的分析介绍．把VSB的滤波器分解成三个部分，每个部分分别为双边带(DSB)或单边带(SSB)信号方式．然后把三个信号叠加即可得到VSB．再叠加上接收到的强载波。用包络检波法检测出基带信号．该系统设备简单，易于实现，并且有较好的抗噪声性能．
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| 关 键 词： | VSB 包络检波 载波 抗噪声性能 发送端 基带信号 调制 双边带 解调 接收 |
| 文章编号： | 1007-6573(2004)04-0027-04 |
| 修稿时间： | 2004年5月30日 |
Research on Principle of Amplitude Demodulation for VSB |
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| SONG Jin-ling,ZHAO Pei-pei.Research on Principle of Amplitude Demodulation for VSB[J].Journal of Xuzhou Normal University(Natural Science Edition),2004,22(4):27-30. |
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| Authors: | SONG Jin-ling ZHAO Pei-pei |
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| Abstract: | Based on the principle of VSB, a new kind of amplitude demodulation for VSB launching powerful carrier wave at dispatcher is proposed, and the anti-noise property of the system is analyzed. Filter of VSB is divided into three parts, and the DSB or SSB signals of the three parts are superposed as the VSB signal. After superposing a powerful carrier wave to the VSB signal, the base-band signal is detected by amplitude demodulation. The demodulation technique has some strong points such as anti-noise and easy implementation. |
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| Keywords: | vestige band modulation amplitude demodulation signal-to-noise ratio |
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