摘要
针对噪声连续波雷达(NCWR)参数选取、旁瓣抑制及多普勒容限扩展问题,研究了NC-WR脉压输出主旁瓣比与脉压长度、多普勒频率和回波信噪比等参数的关系。NCWR脉压输出旁瓣表现为随机波动的噪声基底,通过对其统计特性研究分别推导了统计主瓣均方旁瓣比(SMMSSR)和统计主瓣峰值旁瓣比(SMPSR)的数学表达式。对影响SMMSSR和SMPSR的参数进行了分析。计算机仿真验证了推导结论的正确性。
Referring to the problems of parameters selection, sidelobe suppression and Doppler tolerance expansion, the relationships among mainlobe to sidelobe ratio and the pulse compression length, Doppler frequency, signal to noise ratio of the echo and other parameters after the pulse compression in noise con- tinuous wave radar are studied. The mathematical expressions of statistical mainlobe to mean square side- lobe ratio （SMMSSR） and statistical mainlobe to peak sidelobe ratio （SMPSR） are deduced by researc- hing the statistical properties of the sidelobes which constitute a random fluctuant noise floor, respective- ly. The parameters influencing SMMSSR and SMPSR are analyzed. The correctness of the conclusion is verified by the computer simulation.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2012年第1期1-6,共6页
Acta Armamentarii
基金
部资助基金(9140A13030211BQ02)
南京理工大学研究基金(2010ZDJH05)
教育部博士点基金(20113219110018)
关键词
雷达工程
噪声连续波
脉冲压缩
多普勒
信噪比
主旁瓣比
radar engineering
noise continuous wave
pulse compression
Doppler
SNR
mainlobe to sidelobe ratio
