【摘 要】
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发展总趋势 从世界上第一个广播电台诞生至今,声音广播已走过了80年的光辉历程。在这80年中,从简单的调幅广播不断发展,又先后出现了调频广播、立体声广播(FM立体声和AM立体
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发展总趋势 从世界上第一个广播电台诞生至今,声音广播已走过了80年的光辉历程。在这80年中,从简单的调幅广播不断发展,又先后出现了调频广播、立体声广播(FM立体声和AM立体声),80年代末期出现了数字卫星广播(DSR),90年代后期出现了许多其它形式的数字卫星广播(ADR、World-
The general trend of development From the birth of the world’s first radio so far, sound broadcasting has gone through 80 years of glorious history. Over the past 80 years, there has been a continuous evolution from simple AM broadcasting to FM broadcasting, stereo broadcasting (FM stereo and AM stereo), digital satellite broadcasting (DSR) in the late 1980s and many others in the late 1990s The form of digital satellite broadcasting (ADR, World-
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