| 无线电引信频域恒虚警率目标检测算法 |
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| 引用本文： | 石润龙,刘斌,周军伟. 无线电引信频域恒虚警率目标检测算法[J]. 探测与控制学报, 2010, 32(1) |
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| 作者姓名： | 石润龙 刘斌 周军伟 |
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| 作者单位： | 1. 中国空空导弹研究院,河南,洛阳,471009
2. 中国空空导弹研究院,河南,洛阳,471009;西北工业大学电子信息学院,陕西,西安,710072 |
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| 摘 要： | 针对无线电引信时域信号处理在小目标检测中的不足,根据CA-CFAR(单元平均恒虚警率)检测理论以及PD(脉冲多普勒)雷达回波频谱特性,设计了频域CFAR(Constant False Alarm Rate恒虚警率)目标检测算法。算法通过对回波信号作时频域变换,在频域上,以频率为单元对当前检测与历史平均检测作比较来检测目标存在。以FPGA+DSP搭建的硬件信号处理平台对算法的半实物仿真表明:该目标检测算法对小目标信号具有较好的检测效果。
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| 关 键 词： | 信号处理 目标检测 恒虚警 无线电引信 空空导弹 |
CFAR Target Detection Algorithm Based on Frequency Domain for Radio Fuze |
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| SHI Runlong,LIU Bin,ZHOU Junwei. CFAR Target Detection Algorithm Based on Frequency Domain for Radio Fuze[J]. Journal of Detection & Control, 2010, 32(1) |
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| Authors: | SHI Runlong LIU Bin ZHOU Junwei |
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| Affiliation: | SHI Runlong1,LIU Bin1,2,ZHOU Junwei1(1.China Airborne Missile Academy,Luoyang 471009,China,2.Institute of Electronic , Information,Northwestern Polytechnical University,Xi'an 710072,China) |
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| Abstract: | In view of the deficiency in the time-domain signal processing of radio fuze for small target detection,a CFAR(Constant False Alarm Rate) target detection algorithm is proposed based on CA-CFAR detection principle and the spectrum characteristic of the Doppler echo.By making time-frequency domain transformation to the echo signal,the algorithm compares the current detecting with the history detecting according to the frequency spectrum.A hardware platform of signal processing is designed based on FPGA & DSP... |
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| Keywords: | signal processing target detection CFAR radio fuze air-to-air missile |
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