摘要
在短波数字化接收机中,频谱扫描是对天线端的射频信号进行频谱分析。由于扫频速度难以满足工程需要,本文运用有限状态机的思想,在基于DSP和FPGA的硬件平台上,设计实现频谱扫描功能,并通过合理调度DSP的线程压缩扫频时间,满足实际应用需求。
Frequency spectrum scanning is the spectrum analysis of RF signal in shortwave digital receiver. However, the scanning speed does not meet the engineering need, this paper applies the finite state machine concept. The paper designs and implements the spectrum scanning function on the platform based on DSP and FPGA, and compresses scanning time through scheduling DSP threads reasonably, which meets the application demand.
出处
《船电技术》
2014年第6期70-72,75,共4页
Marine Electric & Electronic Engineering
关键词
有限状态机
频谱扫描
短波接收机
线程
finite state machine
frequency spectrum scanning, shortwave receiver, thread
