说明：   Wireless Communication and CDMA This section provides some background information on wireless technology, wireless personal communications, and the basics of CDMA technology. If you are familiar with CDMA technology and the IS-95A standard, you can skip to these later sections: Main Library Structure, which describes the components of the CDMA Reference Blockset Hints for Using the CDMA Reference Blockset, which describes some important conventions in the CDMA Reference Blockset that you should keep in mind while studying or creating simulations Demo Models, which uses demonstration models to illustrate how to use the blockset for simulating CDMA techniques.