查询词典 hedgehopping

To overcome disturbance problem of hedgehopping over the sea, variable structure method is proposed. The central content in this paper is the design of missile altitude control system with variable structure. The research has practical meaning.

不同的干扰因素对导弹高度控制系统的要求是矛盾的，而利用PID控制并不能解决这一矛盾，为此提出了采用变结构高度控制的方法。

With the continuous development of technology of low-level/hedgehopping attack weapons,air-defense missile fuze is facing more and more strong ground and sea clutter interference.

随着低空超低空突袭兵器技术的不断发展，防空导弹引信面临着越来越强的地海杂波的干扰。

Company's core products include: central air-conditioning system disinfection purification devices, industrial waste gas purification plant oil mist, air purifiers series, hedgehopping catering hood, industrial desulfurization equipment out of stock and plasma nitriding equipment.

公司核心产品有：中央空调系统净化消毒装置、工业废气油雾净化装置、空气净化器系列、超低空餐饮油烟机、工业脱硫脱销设备和等离子渗氮设备等。

PID control has been successfully used in many fields such as aviation, spaceflight, missile and other industry control system. The study object in the thesis is missile that flies hedgehopping over sea at minimum altitude. Many interference problem must be solved when missile flies at minimum altitude, otherwise the missile would be dangerous of bumping into the sea under the circumstances of bad weather and wave. The different kinds of interference factors are contradictions with requirements of control system, which can not be solved by PID control.

尽管在航空、航天、导弹以及其它工业控制领域PID控制曾经应用的十分普遍和成功，但对本文所研究的某型超低空掠海飞行的导弹，要实现超低空飞行必须处理好各种干扰问题，否则，在恶劣的气象和海情的条件下便有使导弹与海浪相撞的危险。

Night vision pilotage systems are used to assist helicopter pilots to realize taking off, landing and hedgehopping at night by providing the highdefinition and largearea images.

根据直升机驾驶员夜间飞行观察系统（NVPS的特点，对NVPS的环境适应性设计、光电传感器选取以及控制系统设计等问题进行仿真分析与计算。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。