摘要
在研究GNSS信号POCET恒包络调制技术的基础上,分析讨论了牛顿法和梯度算法在POCET技术中搜索最优解时的情况,并选取牛顿法实现了L1频点四信号的POCET恒包络调制;同时研究了不同初始相位产生的不同相位组合,并对不同相位组合后的复合信号功率谱进行了分析,对比了四信号时Interplex技术和POCET技术复合效率。研究表明POCET技术的结果一致性较好,效率比较高。
This paper, based on the research on the POCET modulation used for GNSS signals,analyzes and discusses the Netwon method and the Gradint algorithm in POCET for searching the optimal solutions. And the Netwon method is chosen to implement the POCET modulation on 4 L1 signals. In addition, this paper studies different phase combinations sue to different initial phases and analyzes the composite PSDs produced by different phase. For the four-signal case,the composite efficiency of the POCET is compared with the one of the Interplex method,and the result shows that the POCET method has better consistency and efficiency.
出处
《无线电通信技术》
2013年第5期85-88,共4页
Radio Communications Technology
