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随着无线电技术的迅速发展,无线电报、电话、传真、数据通信的使用范围日益扩大,通信线路不断增加,无线电频谱越来越拥挤,电台间的相互干扰日趋严重。因此,如何压缩每一个无线电信道的频带宽度,减少不必要的辐射波,这是无线电通信中急待解决的问题。世界各国对此都十分重视,进行了大量的研究工作,力求寻找解决的途径。单边带通信就是解决的方法之一。
With the rapid development of radio technology, the use of radio telegraph, telephone, facsimile and data communications has been expanding. Communication lines have been increasing, radio frequency spectrum has become more and more crowded, and inter-radio interference has become increasingly serious. Therefore, how to compress the bandwidth of each radio channel and reduce the unnecessary radiation is an urgent problem in radio communication. All countries in the world attach great importance to this and carry out a great deal of research work and strive to find solutions. Single-sideband communication is one of the solutions.