文件名称：Smart Antennas For Wireless Communications: IS 95 and The third generation CDMA
文件大小：18.83MB
文件格式：PDF
更新时间：2012-12-23 12:32:26
Smart Antennas CDMA
This text has been created to satisfy the growing demand for knowledge in two emerging areas: adaptive antennas (also known as smart antennas) and Code Division Multiple Access. CDMA was commercialized in the early 1990s by Qualcomm, Inc., a San Diego, California, company that pioneered the use of a classic military concept for the burgeoning cellular telephone industry. Adaptive arrays, first conceptualized in the 1960s with the birth of digital signal processing, only recently have become practical for deployment; the intense growth rates fo wireless services around the world are beckoning for their commercial use.