ID 原文 译文
19435 而捷变频雷达通过随机改变发射相邻脉冲的载频，大大提高了雷达的低截获和抗干扰能力。 Frequency agile radar improvesgreatly the low interception and anti-jamming ability of radar by randomly changing the carrier frequency oftransmitting adjacent pulses.
19436 但是捷变频雷达不能完全消除干扰，部分目标回波脉冲可能被干扰淹没，无法很好地完成相参积累和目标检测。 However, agile radar can not completely eliminate the interference, some targetecho pulses may be submerged by the interference, agile radar can not complete coherent accumulation andtarget detection well either.
19437 针对上述问题，该文提出捷变频联合Hough变换的抗干扰方法，首先利用脉间频率捷变技术规避大部分窄带瞄准和欺骗式干扰； To solve the above problems, an anti-jamming method of frequency agilitycombined with Hough transform is proposed. Firstly, the inter-pulse frequency agility technology is used toavoid most narrowband aiming and deceptive jamming.
19438 然后针对干扰信号时间上的不连续特性，通过Hough变换和峰值提取进行干扰识别与抑制； Then, according to the time discontinuity of thejamming signal, Hough transform and peak extraction are used to identify and suppress the jamming.
19439 最终，针对捷变频与传统动目标检测(MTD)不兼容问题，通过稀疏重构完成目标的检测。 Frequency agility is incompatible with the traditional Moving Target Detection(MTD). Target detection is accomplished by sparse reconstruction.
19440 仿真与实际雷达和干扰机对抗实验表明，该方法可以获得良好的抗干扰性能和目标检测性能。 The simulation and actual radar and jammer countermeasure experiments show that the proposed method can achieve good anti-jamming performance and target detection performance.
19441 致密焦面阵列馈源(DFPAF)融合了多喇叭多波束馈源和相控阵列馈源(PAF)的特点，与多喇叭多波束馈源和常规相控阵列馈源相比较，它可以同时提供更多的固定赋形波束进一步拓宽视场。 The Dense Focal Plane Array Feed (DFPAF), which integrates the characters of multi-beam feedwith multiple independent horns and Phased Array Feed (PAF), can simultaneously provide more fixed shapedbeams and wider field of view than multi-beam feed with multiple independent horns and PAF.
19442 在射电天文、雷达、电子侦察和卫星通信等领域引起了极大的关注。 It attracts more attention in radio telescope, radar, electronic reconnaissance，satellite communication and so on.
19443 由于其阵列结构与常规阵列馈源不同，因此近年来展开了对其设计方法的研究。 Its unique structure promotes the studies on special design method recently.
19444 该文充分利用反射面天线的固有特性，并结合阵列天线理论，提出一种可以快速、稳健地设计致密焦面阵列馈源的方法，给出了设计原理和设计结果，并和最具代表性的多喇叭多波束馈源进行了性能对比分析，为设计致密焦面阵列馈电的大型反射面提供理论和数据参考。 Combing the theory of array antenna and inherent characteristic of parabolic reflector antenna, a fast design method with robust processing procedure is proposed in this paper. The design principle, calculated results, and comparison between DFPAFand the most representative multi-beam feed with multiple independent horns are presented. All these providea theoretical basis and reference data for the design of giant reflector with DFPAF.