1.This paper develops a sonar simulation system that is an important component in integrated simulation system. According to the new Doppler Velocity Log fixed on underwater vehicle and correlative documents about acoustic modelling and signal processing, this paper carefully analyses the error source of the Doppler Velocity Log, then builds a model for the Doppler Velocity Log and develops a sonar simulation system.
本文开发的声纳仿真系统就是这个集成仿真器中很重要的一部分,针对水下机器人上安装的新型多普勒测速声纳(DVL,Doppler Velocity Log),参阅国内外现有的水声建模和声纳信号处理相关资料,分析多普勒测速误差来源,通过多普勒测速声纳分层建模,模拟各种海洋环境下水下机器人自身的速度,生成导航信号,验证控制算法和自主规划模块的性能,进一步完善集成仿真器。
2.In every group, the diastolic coronary sinus peak flow velocity /index (DCSV/DCSI) and coronary sinus antegrade flow velocity/index(CSV/CSI)was measured before and after handgrip exercise echocardiography by HP SONOS 5500 at right heart inflow view.
经胸超声测定各组于等长握力负荷试验前后的冠状静脉窦舒张期血流峰值速度及速度积分(diastolic coronary sinus peak flow velocity/index,DCSV/DCSI),前向血流峰值速度及速度积分(coronary sinus antegrade flow velocity/index,CSWCSI)。
3.Under the assumption that the wind vectors of two contiguous azimuth are same, the VAP (Velocity Azimuth Processing) method is proposed to retrieve the wind vector field from the distributions of Doppler velocity on the distance circle.
从单Doppler速度场反演风矢量场的VAP(Velocity Azimuth Processing)方法是在假定相邻方位角的风矢量相等的前提下,从单部Doppler雷达所测得的各个距离圈上的径向速度随方位角分布的廓线推算风向和风速的方法。
4.The General Project Problem Solution of Nonlinear Editing System of Dps Velocity
非线性编辑系统Dps Velocity常见工程问题的解决方法
5.This paper shows that the VAD and VAP methods can be derived from the same relationship based on the azimuthal uniform wind assumption. By using this assumption, an IVAP (Integrating VAP) method is developed, which can overcome the sensitivity of VAP method to the short wave and too smooth property of VAD method in Doppler velocity.
通过采用“给定方位角内风场均匀假定”提出积分速度—方位处理技术IVAP(IntegratingVelocity-AzimuthProcessing),克服了VAP技术在单多普勒雷达风场反演中对Doppler速度小尺度脉动过分敏感的缺点,及VAD(Velocity-AzimuthDisplay,速度-方位显示)技术只能反演平均风矢量问题。
6.Aim:To probe dignostic significance of AVI(air velocity index) in the patients with chronic obstructive pulmonary disease.
目的:探讨气速指数(air velocity index,AVI)判定慢性阻塞性肺病(COPD)的价值。
7.As one of the apach?jakarta projects,Velocity is a Java?based template engine that enables designers to separate Java code from template in Web application.
Velocity作为apach jakarta. 的项目计划之一,是一种基于Java的模版引擎。
8.Velocity Effect on Damage Creation in Bi Induced by Swift Heavy Ion Irradiations
Velocity Effect on Damage Creation in Bi Induced by Swift Heavy on Irradiations
9.By the means of molecular dynamics simulation,self-diffusion coefficient for simple fluid has been simulated using Green-Kubo relation(VACF: velocity autocorrelation function) and Einstein relation(MSD: mean square displacement).
利用分子动力学方法模拟了简单流体的自扩散系数。 模拟分别采用Green-Kubo法(VACF:velocity autocorrelation function)和Einstein法(MSD:mean square displacement)。
10.Integration of AE and other software to strengthen the function of DPS velocity non-linear editing system
利用AE等多软件结合增强DPS Velocity非编系统功能