您要查找的是不是：
- Wideband-high-resolution SAR background clutters affect the target detection and classification seriously. 宽带高分辩SAR背景杂波对SAR目标检测和识别可造成严重影响。
- In them, the target detection, and tracking using the IR imaging technique is one of the symbol of modernization, intelligent, autoimmunization of modern weapon. 其中,利用红外成像技术来实现对目标的检测和跟踪,是军事武器现代化、自动化和智能化的重要标志之一。
- Since the normal target detection method is unfit for the target detection of impulse radar,a novel target detection method based on the wavelet pack energy feature and the LVQ artificial neural networks(ANN) is presented. 基于常规雷达的目标检测方法不能很好地适应冲击雷达目标的检测,提出了一种基于小波包能量特征与LVQ神经网络相结合的新颖目标检测方法;
- Then the evidences for target detection decision from different sensors are combined using the orthogonal sum rule to get the target detection basic confidence image for the whole system. 然后应用正交和规则复合来自各传感器的目标检测判决证据，获得整个系统的目标检测基本可信度图；
- It is very important to study the signal to clutter ratio(SCR) and the power spectral density(PSD) of the clutter as a basis for studying the target detection in the background of clutters. 关于信杂比及杂波谱的研究对于杂波背景下目标的检测具有重要的指导意义,然而窄带雷达已有的相关理论在超宽带雷达中已经不再适用,需重新进行研究。
- He shot an arrow, but it fell short of the target. 他射了一箭，但没有射中靶。
- Extracting main scatter center of the target correctly and accumulating the energy of the main scatter center are the key to the high resolution radar range extension target detection. 正确提取目标强散射中心,并对强散射中心的能量进行有效的积累,是高分辨率雷达距离扩展目标检测的关键。
- He won't hit the target at that distance. 他打不中那样远的目标的。
- You missed the target by a mile/by miles. 你远未中的。
- He fired several shots (at the target). 他向目标射出了几发子弹。
- I aimed at the target but hit the wall. 我瞄准了靶射击,但却打在了墙上。
- Take careful aim (at the target) before firing. 开火之前仔细瞄准(目标).
- The sights of the gun must be in alignment with the target. 枪的瞄准器必须与射击目标对准成一线。
- In the course of tracking JR motive targets, a large number of false alarm signals might appear in the target detection stage of an IR ATR system because of the non-prediction of IR targets signature. 摘要在红外动目标序列图像跟踪过程中，由于目标本身的红外特征具有较大的不可预测性，使ATR系统在目标探测阶段产生大量的虚警讯息。
- Because sky is the main battlefield of today and future, the research of the targets detection in the sky background will not end, and yet conversely, it will continue developing in the antagonism. 星空是现在和未来战争的主要战场,所以对星空背景下的目标检测问题的研究不会停步不前,它会在对抗与反对抗中不断发展。
- He shot (off) several bullets before hitting the target. 他射出好几发子弹才击中目标。
- Jack's first shot missed the target by a mile. 杰克第一枪差很远没打中目标。
- The dart landed plunk in the center of the target. 标枪正中靶心
- The target's getting lower all the while. 指标一直在下降。
- Jack hit the target by a fluky shot. 杰克凭运气击中了靶子。
