摘要
为了降低信号捕获跟踪运算量,针对Galileo信号CBOC调制提出了一种新的CBOC信号处理中的二次采样算法。分析了CBOC信号调制方式及功率谱密度,介绍了CBOC信号二次采样算法,提出了CBOC信号处理二次采样方法的处理模型。仿真结果表明,CBOC信号处理中的二次采样算法可以实现信号的CBOC解调,降低了运算量并简化了Galileo接收机的捕获跟踪设计。
In order to reduce the computational amount of signal acquisition and tracking operations for Galileo receiver, a new downsampling method for CBOC signal processing is proposed. The CBOC signal modulation and power spectral density is analyzed, and the downsampling method in CBOC signal processing is presented, then the signal processing model of downsampling method is proposed. The simulation results show that the CBOC signal is demodulated after using the downsampling method. The computational amount and the design complexity are reduced using downsampling method in CBOC signal processing.
出处
《无线电工程》
2011年第12期23-25,共3页
Radio Engineering
