摘要
用贝塞尔函数推导了限幅失真对线性调频(LFM)信号脉压输出波形的影响,并给出了定量表达式。仿真分析了不同限幅时脉压波形的主瓣宽度、峰值旁瓣比和积分旁瓣比的变化,并分析了限幅失真时的合成孔径雷达(SAR)点目标成像。
The effect of amplitude limit distortion on the output wave of pulse compression of LFM signal was analyzed theoretically based on the Bessel function in this paper,and quantitative result was derived.The main lobe width,peak side lobe ratio and integrated side lobe ratio of the output wave under different ratios of amplitude limit were discussed by simulation.The effect of amplitude limit distortion on actual synthetic aperture radar imaging for point targets imaging was analyzed.
出处
《上海航天》
北大核心
2008年第3期32-36,共5页
Aerospace Shanghai
关键词
合成孔径雷达
脉冲压缩
限幅失真
主瓣宽度
峰值旁瓣比
积分旁瓣比
线性调频
Synthetic aperture radar
Pulse compression
Amplitude limit distortion
Main lobe width
Peak side lobe ratio
Integrated side lobe ratio
Linear frequency modulation
