摘要
在cdma20001x前向信道中,要对一段信号进行传送,一般选用QPSK调制,因为QPSK调制比QAM更适合噪音环境。采用TI6000系列的TMS320C6711芯片处理前向信道信号,可以对复杂性和实时性较高的信号做采集、量化、编码、调制等实时处理,主要功能通过软件编程实现,从而使系统具有结构灵活、可靠性高、可扩展等优点。
In cdma2000 1x forward channel to restrain noise accumulation effectively, QPSK modulation is always adopted during signal transmission. It is because QPSK modulation suits noise environments more than QAM. Using TMS320C6711 processor （T16000 series） to deal with signals is a reliable choice. It can do real-time transactions such as collection, quantification, coding and modulation for signals rigorous in complexity and real-time quality, and the main function is implemented by software programming, so the system has excellences of flexible configuration, high reliability and good expansibility.
出处
《信息安全与通信保密》
2006年第8期171-172,共2页
Information Security and Communications Privacy
