| 基于有限状态机的短波接收机频谱扫描的设计与实现 |
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| 引用本文： | 王李民,刘卫华,周志文.基于有限状态机的短波接收机频谱扫描的设计与实现[J].船电技术,2014(6):70-72,75. |
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| 作者姓名： | 王李民 刘卫华 周志文 |
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| 作者单位： | [1] 92493部队,辽宁葫芦岛125000 [2] 92403部队,福州350007 [3] 海军工程大学,武汉430033 |
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| 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.
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| 关 键 词： | 有限状态机 频谱扫描 短波接收机 线程 |
Design and Implementation of Frequency Spectrum Scanning in RF Receiver Based on Finite State Machine |
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| Wang Limin,Liu Weihua,Zhou Zhiwen.Design and Implementation of Frequency Spectrum Scanning in RF Receiver Based on Finite State Machine[J].Marine Electric & Electronic Technology,2014(6):70-72,75. |
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| Authors: | Wang Limin Liu Weihua Zhou Zhiwen |
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| Institution: | 1.The Unit 92493 ofPLA, Huludao 125000, Liaoning, China; 2. The Unit 92403 ofPLA, Fuzhou 350007, China;; 3. Naval University of Engineering, Wuhan 430033, China) |
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| Abstract: | 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. |
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| Keywords: | finite state machine frequency spectrum scanning shortwave receiver thread |
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