ID 原文 译文
10184 仿真结果表明,弹体转速、射角、飞行时间、固定鸭舵滚转角等是影响偏流的重要因素,所给出的偏流计算方法可较精确的计算偏流值。 ‭The simulation results show that the projectile speed, shooting Angle, flight time, fixed duck rudder roll Angle is one of the important factors affecting drift, given flow deviation calculation method can be more accurate calculation of flow deviation value.
10185 研究结果可应用于固定鸭舵式二维弹道修正榴弹的总体设计中,对该型弹丸的研究具有理论和工程意义。 ‭The research results can be applied to fixed duck rudder type two-dimensional trajectory correction of shrapnel in the overall design, the study of this type projectile with theoretical and engineering significance. ‭
10186 空时自适应处理(space-time adaptive processing,STAP)是抑制因平台运动导致谱展宽的地物杂波的有效技术,近三十年来受到广泛关注,其中平台运动通常假设为匀速。 Space-time adaptive processing (space time adaptive processing, STAP) suppress clutter spectrum broadening caused by platform motion object were the effective technology, widely in nearly 30 years, which usually assumed as uniform platform movement.
10187 分析了变速平台情况下地物回波多普勒谱特性,相比传统匀速平台情况,杂波回波的多普勒谱展宽更严重,且展宽程度与阵列面向、散射点位置以及脉冲积累均有关; ‭ Analyzed the transmission platform case features echo doppler spectrum characteristics, compared with the traditional uniform platform, clutter echo doppler spectral broadening is more serious, and array for broadening and scattering point location as well as pulse accumulation are related;
10188 因此,变速平台情况下,直接采用传统的STAP方法,其杂波抑制性能,尤其是在主杂波区的性能变差,严重降低慢速目标检测性能。 ‭Cases, therefore, variable speed platform directly with conventional STAP method, the clutter suppression performance, especially in the performance variation of the main clutter area, serious reduce slow target detection performance.
10189 对此,提出一种基于数据域的补偿方法,通过构造补偿矩阵抑制加速度在相位上产生的增量,从而抑制杂波的多普勒谱展宽。 In this paper, a compensation method based on the data fields, by constructing the compensation matrix inhibit acceleration on the phase increment, thus suppressing clutter doppler spectral broadening.
10190 仿真结果表明,所提方法可使杂波多普勒谱变窄、STAP的杂波抑制改善因子提高,尤其慢速目标的检测性能明显提高。 The simulation results show that the proposed method can make the clutter doppler spectrum narrowing, clutter suppression of STAP improve factor, especially slow target detection performance has improved significantly.
10191 近距离主动毫米波人体成像是检测藏匿在人体衣物下危险品的一种有效手段。 Close active millimeter wave body imaging is hiding under the body clothing is an effective means of dangerous goods.
10192 针对主动毫米波图像分辨率高,人体不同部位呈现不同特性,以及人体、其他携带物和危险物特性相互影响和干扰、危险物检测困难的特点,提出了一种主动毫米波图像多危险物检测方法; ‭For active millimeter wave image resolution is high, present different characteristics at different positions of the body, and the characteristics of the human body, the other carrying objects and hazards of mutual influence and interference, danger detection difficult characteristics, puts forward a kind of active millimeter wave image how dangerous objects detection method;
10193 通过基于人体特征的区域划分,采用图像区域化的自适应阈值图像分割、结合数学形态学的二次提取方法,实现了主动毫米波图像人体携带多危险物的检测和提取。 Based on division of human characteristics, using adaptive threshold image segmentation, image regional secondary extraction combined with mathematical morphology method, realized the active millimeter wave image body carry much danger detection and extraction.