无线电广播自1906年诞生,至今已近百年;我国人民广播事业自1940年在延安创立,至今也有60余年,在其发展历程中由小到大,由简到繁,尤其在改革开放后,更得到飞速发展,由于受到模拟广播方式的限制,进一步提高广播质量已十分困难。广播的数字化是解决问题的好办法,它能够把广播节目的音质达到相当于激光唱机(CD)的水平,满足人 Since its birth in 1906, radio broadcasting has been nearly a hundred years old. The people’s broadcasting service in our country was founded in Yan’an in 1940 and has been in existence for more than 60 years. As a result, it has grown from simple to complex in the course of its development. Especially after the reform and opening up, With rapid development, it is already very difficult to further improve the broadcasting quality due to the restriction of the mode of analog broadcasting. Digital broadcasting is a good way to solve the problem. It can achieve the same sound quality of broadcast programs as compact disc players (CDs)