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近几年来,卫星广播电视在国外发展很快,在我国C波段卫星电视广播巳作为重要的传输手段,不远的将来,K波段卫星广播电视接收也会成为现实。本讲座作者参阅了较多的资料,深入浅出地介绍了卫星电视广播的基本原理,接收机的技术性能,归纳总结出接收机技术参数设计的流程图;对K波段、C波段的室外单元和室内单元及其典型电路进行了分析;还部分介绍了L波段的接收技术。讲座避免了复杂的公式推导,着重物理概念的说明,既具有普及知识的系统性又具有实用参考价值。本讲座共分七讲,从1989年第1期开始连载至7月结束,欢迎广大读者对本讲座提出宝贵意见和建议。
In recent years, satellite radio and television have been developing rapidly in foreign countries. In China, C-band satellite television broadcasting has become an important means of transmission. In the near future, the reception of K-band satellite radio and television will also become a reality. The author of this lecture has read more information, introduced the basic principle of satellite TV broadcasting and the technical performance of the receiver in simple terms, and summed up the flow chart of the technical parameter design of the receiver. For K-band, C-band outdoor units and indoor Unit and its typical circuit were analyzed; also introduced in part the L-band reception technology. Lectures to avoid the complexity of the formula deduction, focusing on the description of the concept of physics, both with systematic knowledge of universal knowledge and practical reference value. This lecture is divided into seven chapters, serialized from the first issue in 1989 to the end of July, and readers are welcome to come forward with valuable suggestions and suggestions on this lecture.