aperture time
英 [ˈæpətʃə(r) taɪm]
美 [ˈæpərtʃʊr taɪm]
网络 孔径时间; 间隙时间; 缝隙时间; 空隙时间; 开口时间
双语例句
- A floating stage or barge extending from the south stage aperture expands the stage once again, this time for marine performance possibilities.
采用浮动舞台或驳船从南侧舞台延伸的方式更可为海洋文化与表演提供新的可能。 - Must know that the Orde outstanding lion big aperture is more than one months ago, in that time section, is precisely the manager asks an outrageous price, many foreign aids ask a price nearly double!
要知道，奥德杰狮子大开口是在一个多月前，在那个时间段，正是经纪人漫天要价的时候，许多外援的要价几乎都翻了一番！ - In terms of the distribution of target formation dips, proper migration aperture and dip parameters were selected to image the pre-stack time migration on the whole data volume.
根据目的层倾角分布情况，选择最佳偏移孔径和偏移倾角参数，提高了成像精度。 - Approximately, we assume their tracks are parallel lines in a synthetic aperture time.
但在合成孔径时间内可以近似认为他们的轨道是直线且相互平行。 - The synthetic aperture focus sound imaging was developed since 1970 '. Synthetic aperture focusing technique ( SAFT) is the classical synthetic aperture method, where each time only a single element is used for transmission and reception.
合成孔径聚焦声成像是上个世纪七十年代发展起来的一种超声成像技术，合成孔径聚焦技术（SAFT）是经典的合成孔径方法，但是图像重建的算法复杂，实时性较差； - For a given aperture size and vibration acceleration, the relations between material flow, flow time and vibration frequency were studied by experiments.
通过试验确定了在网孔孔径和振动加速度一定的情况下，物料流量与流动时间以及振动频率的关系。 - According to the requirements of AD converter in radar digital moving target tracking system, this paper covers the way to determine the sample rate, signal noise ratio, aperture time and aperture vibration of ADC IC and to choice proper ADC IC.
针对雷达数字动目标跟踪系统对模数（AD）转换电路的要求，讨论了AD转换芯片（ADC）的信噪比、孔径时间、采样速度和孔径抖动等关键技术指标，并据此确定合适的ADC。 - Optimization design of CR aperture based on time domain spectrum
基于近场时域谱的紧缩场口径优化设计 - A method to improve the lateral resolution of B scan image using the fuzzy control theory is introduced in this paper. Varying aperture technique, electronic focusing delay principle and dynamic real time focusing are also presented.
本文介绍了利用模糊逻辑控制理论提高B型超声图像横向分辨力的方法，文章中介绍了变孔径技术，电子聚焦延时原理及动态实时聚焦。 - Using the diffraction, integral equation, the irradiance in near-field, i. e., in the region between the aperture and the Fresnel region, of plane-wave Gaussian beams are presented for the first time.
本文从衍射积分方程出发，得到了高斯光束经圆孔光阑衍射后在近场区，也就是在光阑平面和菲涅耳区之间的轴向光场分布。 - The forth-order cumulant-based DoA methods can be used on suppressing gaussian noises and extending array aperture. Neural Networks for Real Time Bearing Estimation of Spatial Signal Sources
本文分析了基于四阶累积量的测向方法不能正确测量多径信号方向的原因，提出了一种多径环境下的基于四阶累积量的新型测向方法。神经网络用于多个空间信号方向的实时估计 - Analysis of the Effect of the Aperture Fill Time in a Wideband Phase Array Radar on the Performance of One-Dimensional Range Profile
孔径渡越时间对一维距离成像的影响分析 - The SAR imaging of moving ship targets at sea is investigated based on high resolution airborne SAR with longer synthetic aperture time.
基于高分辨率机载SAR，研究了合成孔径成像时间较长情况下海面运动舰船目标的SAR成像问题。 - It achieves longer synthetic aperture time by steering the radar antenna beam to always illuminate the same area on the ground ( spot), thus acquire an image of small area with high geometrical resolution in azimuth direction which strip-map SAR can not achieve.
它通过控制雷达天线波束指向，使其对目标区域连续照射来获得较长的合成孔径时间，从而可以获取一小块区域内普通条带模式无法达到的高分辨率微波遥感图像。 - The measurement on the transmittance of big aperture optical systems is emphatically described in this paper, and at the same time the factors that affect the measuring accuracy are also discussed, providing together with the method for bettering the accuracy.
本文着重介绍测量大口径光学系统的透过率。同时讨论了影响测量精度的因素，并给出了提高测量精度的方法。 - Rotating aperture time-averaged speckle photography
旋转孔径&时间平均散斑照相法 - For the research of the transient electromagnetic pulse radiation of aperture, a time domain method is used on the basis of field equivalence principle in this paper.
本文采用时城法利用场等效原理分析电磁脉冲辐射场，得到时域中口径辐射场的解析解，得出的公式对近场、远场都适用。 - Digital Compensation Technique of Aperture Fill Time for Wideband Phased Array Radar Stretch Processing
宽带相控阵雷达Stretch处理孔径渡越时间数字补偿技术 - Using field programmable gate array ( FPGA) for synthesized aperture radar ( SAR) data compression can reduce the time of data compression, so it increases the resolution of radar.
用现场可编程门阵列（FPGA）对合成孔径雷达（SAR）原始数据进行压缩能降低数据压缩时间，增加雷达分辨力。 - The Measurement of Aperture Time of High Speed SHA Keeping In Touch
高速采样/保持放大器的孔径时间测定 - With the development of the solid laser for inertial confinement fusion ( ICF), the power and the aperture of the laser become larger and larger, and at the same time more and more large-aperture optical components were placed in the laser system.
随着ICF激光驱动器的不断发展，其能量和口径也越来越大，系统中的光学元件也越来越多。 - Synthetic aperture radar ( SAR) has high resolution, and it is not restricted by time, climate, weather and so on.
合成孔径雷达是一种不受时间、气候等因素限制的高分辨率成像雷达。 - Synthetic Aperture Radar ( SAR) can do detections to a region all day, all the time, all-weather and also with long distance.
合成孔径雷达（SAR，syntheticApertureRadar）能够全天候长时间的对同一地区进行远距离的监测。 - Inverse Synthetic Aperture Radar ( ISAR) can obtain 2-D ( range-azimuth) high resolution at the same time. It could provide image information of ship target at sea, so that offer support to navigation and other activities.
逆合成孔径雷达（ISAR）能够同时获得目标在距离-方位二维方向上的高分辨能力，从而能提供舰船目标的平面图像信息，进而为航海活动提供有效的支持。 - In recent years, it has become possible to format synthetic aperture radar ( SAR) image real time.
近年来，合成孔径雷达（SAR）系统已能实现实时成像。 - Moving target detection and imaging, being an important research aspect of synthetic aperture radar ( SAR), has been a hot topic for a long time and has especially important significance in military field and civil application field.
运动目标检测与成像作为合成孔径雷达（syntheticApertureRadar，SAR）的一个重要研究方向，一直是人们关注的热点问题，在军事领域尤为突出，民用领域也得到了广泛的应用。 - The conventional phased array radar has many advantages, but due to the limitation of the aperture fill time, it can only work in a relatively narrow bandwidth, which limits its applications in the field of wide-band and ultra-wide-band.
传统相控阵雷达虽然具有众多的优点，但是由于受到孔径渡越时间的限制，只能工作在比较窄的带宽下，从而限制了它在宽带和超宽带领域的应用。 - In recent years optically controlled phased array becomes a hot spot in the research of radar technology. It uses the method of optical time-delay to offset the aperture fill time, so that it can be used in wide-band even ultra-wide-band radar beam forming and processing.
光控相控阵是近年来雷达技术中的研究热点，它通过光学延时的方法来抵消孔径渡越时间，可以应用在宽带甚至超宽带的雷达波束成形与处理中。 - Therefore, in order to automatically obtain moderate-brightness images, it is only needed that the aperture size, exposure time and signal gain are effectively controlled.
因此，为了能自动获得亮度适中、细节表现清晰的图像，只需要对光圈大小、曝光时间、信号增益这三个量进行有效控制便可以实现。 - The most advantage of the synthetic aperture radar ( SAR) is the ability of observing the target in all weather and time. There are a lot of applications of SAR in military and civil aspect.
合成孔径雷达最大的优点就是可以全天候，全天时的对目标进行监测，无论在军事还是在民用中都有着广范的应用。