Application of Direct-sequence Spread Spectrum Communication in Mobile Communication Used in Coal Mine

The existing problems of coal mine communication, especially of the underground mobile communication are summarized in the paper. It is also pointed out that spread spectrum communication has advantages of strong in anti interference and easy to realize CDMA, and it is particularly adopted for coal mine communication. The paper discusses the applying foreground of the spread spectrum communication technology in mobile communication used in coal mine, and shows the feasible and practical program.