摘要
研究短时傅里叶变换和Gabor变换在机动飞行目标ISAR成像中的应用.通过对回波数据进行短时傅里叶变换或Gabor变换,得到不同时刻的高分辨瞬时多普勒谱,然后对观测数据段的不同时刻进行瞬时成像.仿真数据和外场实测数据验证了本方法的优越性.
The application of two linear time-frequency distributions in ISAR imaging of maneuvering targets is studied. The high resolution instantaneous Doppler frequency of different time is obtained by processing the Radar echo data with short time Fourier transform or Gabor transform, then the instantaneous ISAR images of different time are obtained by computer experiment. The simulated data and real data validate the advantage of the method proposed.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2006年第5期702-704,共3页
Journal of Harbin Institute of Technology
基金
哈尔滨工业大学校科学研究基金资助项目(HIT.2001.66)
关键词
线性时频分布
机动目标
瞬时成像
linear time-frequency distribution
maneuvering target
instantaneous ISAR image
