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本文就当下的广播行业中的10千瓦脉宽发射机的应用,进行了研究,对DAM的技术原理进行了细致的介绍,并且结合广播接收机的自动增益特征,进行了相关探讨,用实验的方式论证了DAM广播技术可以在降低能源消耗的情况下还能够保持与传统广播技术相当的信噪比。DAM技术的应用虽然已经非常普遍,但是其技术应用中还是存在着一定的缺陷,因此本文也对于其存在的内部缺陷提出了解决办法,如在调制空隙,压低噪声与干扰的相关对策,DAM在发射机中应用时存在的问题等等。
In this paper, the current application of the 10 kilowatts pulse width transmitter in the broadcasting industry was studied, the technical principle of DAM was introduced in detail, and the automatic gain characteristics of the broadcasting receiver were discussed in detail. With the experimental This demonstrates that DAM broadcast technology can maintain a signal-to-noise ratio comparable to that of traditional broadcast technologies while reducing energy consumption. Although the application of DAM technology has been very common, its technical application still has certain defects. Therefore, this paper also presents some solutions to its internal defects, such as modulation gap, noise reduction and interference countermeasures, DAM Transmitter problems in the application and so on.