A Coherent Integration Method for High-Speed Target via Scale Effect Elimination and Across Range Unit Correction

The conventional coherent integration (CI) methods for high-speed target usually focus on correcting the across range unit (ARU) in narrow-band radar detection. As the need for remote detection and high-resolution imaging increase, the time-bandwidth product of radar is enlarged in practical situation. Then, the scale effect (SE) might arise under the large time-bandwidth product condition, which affects pulse compression (PC) and CI results. For the sake of addressing the problem of SE and ARU, this paper proposes an effective method named as scaled location rotation transform (ScLRT). This method could successively eliminate the SE by designed matched filter and correct the ARU via the location rotation transform. The ScLRT obtains superior CI ability than the conventional ones. At last, numerical simulations are given to assess the validity of ScLRT.