CAJ | 학술논문

多频段子脉冲信号合成距离像,可以降低系统瞬时带宽和采样率要求,并提高距离分辨率.探讨了一种新的基于合成带宽技术的综合子脉冲成像思想,该方法用非均匀采样模型来解决频带合成中子脉冲参数不同带来的问题,然后采用辛格插值方法进行信号的均匀化重建,并最终获取更高分辨率距离像.仿真实验表明,此方法不仅能解决不同参数的子脉冲信号间合成问题,还有效改善了距离分辨率.
다빈단자맥충신호합성거리상,가이강저계통순시대관화채양솔요구,병제고거리분변솔.탐토료일충신적기우합성대관기술적종합자맥충성상사상,해방법용비균균채양모형래해결빈대합성중자맥충삼수불동대래적문제,연후채용신격삽치방법진행신호적균균화중건,병최종획취경고분변솔거리상.방진실험표명,차방법불부능해결불동삼수적자맥충신호간합성문제,환유효개선료거리분변솔.
The method for synthesizing range profile by multi-band child pulse signals can reduce the instantaneous bandwidth and sample rate requirements of radar systems, and increase the range resolution. A new method of pulse-integrated imaging based on the synthesized bandwidth technique is discussed. The non-uniform sampling model is adopted to resolve the problems that are caused by child pulse signals' different parameters in the synthesis band, then the signal is reconstructed by the SINC interpolation, and higher resolution range profile is gotten at last. The simulation shows that the method not only resolves the synthetic problem of child pulse signals with different parameters, but also improves the range resolution.