一种应用于特征识别的高分辨率功率谱设计与实现
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摘要
基于现场可编程门阵列(FPGA)设计了一种高分辨率功率谱,主要用于干扰信号的功率谱分析,同时能够提取雷达接收信号的频域特征,为雷达抗干扰过程中干扰特征的识别提供频谱数据。通过1024点快速傅里叶变换(FFT),采用改进的周期图谱分析方法得到最终的高分辨率功率谱。
This paper designs a high resolution power spectrum based on field programmable gate array(FPGA).This power spectrum is mainly used for power spectrum analysis of interference signals,at the same time can extract the frequency-domain feature of radar receiving signal and provide frequency spectrum data for jamming feature identification in radar anti-jamming process.With1 024-point fast Fourier transform(FFT),the final power spectrum of high resolution can be obtained through the improved periodic map analysis method.
This paper designs a high resolution power spectrum based on field programmable gate array(FPGA).This power spectrum is mainly used for power spectrum analysis of interference signals,at the same time can extract the frequency-domain feature of radar receiving signal and provide frequency spectrum data for jamming feature identification in radar anti-jamming process.With1 024-point fast Fourier transform(FFT),the final power spectrum of high resolution can be obtained through the improved periodic map analysis method.
引文
[1]沈家瑞.通信对抗中的干扰识别技术研究[D].成都:电子科技大学,2011.
[2]李林甫.干扰识别技术研究与实现[D].西安:西安电子科技大学,2014.
[3]靳永昌.雷达信号功率谱的分析与研究[D].大连:大连理工大学,2005.
[4]余训锋,马大玮,魏琳.改进周期图法功率谱估计中的窗函数仿真分析[J].计算机仿真,2008,25(3):111-114.
[5]余雷.基于FPGA的32点FFT算法的设计与实现[D].西安:西安电子科技大学,2014.
[6]魏鑫,张平.周期图法功率谱估计中的窗函数分析[J].现代电子技术,2005,28(3):14-15.
[7]温和,滕召胜,王永,等.改进加窗插值FFT动态谐波分析算法及应用[J].电工技术学报,2012,27(12):270-277.
[8] KUMAR A,KUMAR A,DEVRARI A,et al.Design and FPGA implementation of 32-point FFT processor[C]//Proceeding of International Conference on Intelligent Communication,Control and Devices.Springer Singapore,2017:285-292.
[2]李林甫.干扰识别技术研究与实现[D].西安:西安电子科技大学,2014.
[3]靳永昌.雷达信号功率谱的分析与研究[D].大连:大连理工大学,2005.
[4]余训锋,马大玮,魏琳.改进周期图法功率谱估计中的窗函数仿真分析[J].计算机仿真,2008,25(3):111-114.
[5]余雷.基于FPGA的32点FFT算法的设计与实现[D].西安:西安电子科技大学,2014.
[6]魏鑫,张平.周期图法功率谱估计中的窗函数分析[J].现代电子技术,2005,28(3):14-15.
[7]温和,滕召胜,王永,等.改进加窗插值FFT动态谐波分析算法及应用[J].电工技术学报,2012,27(12):270-277.
[8] KUMAR A,KUMAR A,DEVRARI A,et al.Design and FPGA implementation of 32-point FFT processor[C]//Proceeding of International Conference on Intelligent Communication,Control and Devices.Springer Singapore,2017:285-292.