首页> 外文会议>International Geoscience and Remote Sensing Symposium >Novel chirp phase error compensation algorithm using polynomial chirp modeling for high resolution synthetic aperture radar
【24h】

Novel chirp phase error compensation algorithm using polynomial chirp modeling for high resolution synthetic aperture radar

机译:基于多项式线性调频模型的高分辨率合成孔径雷达线性调频相位误差补偿算法

获取原文

摘要

This paper proposes the phase error compensation algorithm of the wide band chirp generator for the synthetic aperture radar (SAR) use. The proposed algorithm dynamically calculates the phase error of transmitting chirp to reduce spurious of signal. In addition, it uses the curve fitting method and feedback when the desired signal are set by user. Numerical results show that the proposed algorithm can enhance the impulse response function (IRF) results such as the peak to side-lobe ratio (PSLR) and the integrated side-lobe ratio (ISLR) up to -0.1561 dB and -0.0548 dB respectively. Furthermore, the spurious has been reduced by compared to the conventional direct digital frequency synthesizer (DDFS) chirp generators.
机译:针对合成孔径雷达(SAR),提出了宽带线性调频脉冲发生器的相位误差补偿算法。该算法动态地计算了发射线性调频信号的相位误差,以减少信号的杂散。此外,当用户设置所需信号时,它使用曲线拟合方法并进行反馈。数值结果表明,该算法可以将脉冲响应函数(IRF)结果(例如峰旁瓣比(PSLR)和综合旁瓣比(ISLR))分别提高至-0.1561 dB和-0.0548 dB。此外,与传统的直接数字频率合成器(DDFS)线性调频发生器相比,杂散得到了减少。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号