摘要
对于在全数字接收机中一种软件实现的BPSK载波同步方法作了进一步的改进,克服了原有方法仅仅在理论上适合于存储空间和实时性的要求,而在实际工程上不能得到较好应用的弱点。提出了易于在DSP以及QPSK的直接序列扩展频谱系统中实现的方法,并在测试中达到了较好的性能。
In this paper, we improve a BPSK carrier synchronization method implemented by the software in all digital receiver, which overcomes the weakness of original method that is only adapteded to theoretical systems both in time and in memory,not adapted to the applications of practical engineering.We put forward a method which can easily be realized in DSP and direct sequence spread-spectrum system based on QPSK, it achieved a good performance in tests.
出处
《信息技术》
2004年第11期62-64,共3页
Information Technology
关键词
相干解调
载波同步
过零点
软件实现
coherent demodulation
carrier synchronization
zero crossing point
software implementation
