航空学报 > 1994, Vol. 15 Issue (9): 1136-1139

超分辨成象信号处理的硬件实现

叶蓁如, 范长京   

  1. 南京航空航天大学电子工程系,南京,210016
  • 收稿日期:1993-04-29 修回日期:1993-10-20 出版日期:1994-09-25 发布日期:1994-09-25

HARDWARE IMPLEMENTATION OF SIGNAL PROCESSING IN SUPERRESOLUTION IMAGING

Ye Zhenru, FanChangjing   

  1. Department of Electronic Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing,210016
  • Received:1993-04-29 Revised:1993-10-20 Online:1994-09-25 Published:1994-09-25

摘要: 简要介绍线性预测数据外推的超分辨距离-多普勒成象方法,并以一片高速数字信号处理(DSP)芯片—TMS320C25为核心设计了一个专用信号处理器,能完成数据外推、加窗和128复数点FFT,实现超分辨二维成象。文中给出了对B-52模型飞机微波暗室转台实测数据的成象结果,并作了比较。

关键词: 雷达成象, 线性预测, 数字信号处理, 微处理器

Abstract: he superresolution range-doppler imaging method based on the linear prediction data extrapolation is simply described,and a special signal processor constructed with a high speed digital signal processing(DSP)chip TMS320C25 is presented which can perform the data extrapolation,weighting,and 128 complex- point FFT,and complete superresolution 2- D imaging. The imaging results of the live data of a B-52 model aircraft mounted on a ro-taing platform in a microwave anechoic chamber are given and compared.

Key words: radar imagery, linear prediction, digits-signal processing, microprocessor

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