海况

ElNi■o对南沙群岛海域表层水温、波浪及海况的影响

El ni ■ o effects on sst , wave and sea state in Nansha Islands waters

极限海况下浮标运动及锚链受力估算

Estimation of Buoy Motions and Chain Forces in Extreme Sea State

恶劣海况下FPSO模块支墩结构分析

The Analysis of Module Stool of FPSO under Severe Sea State

SAR浅海水下地形遥感不仅依赖于雷达参数，成像时的各海况参数和水下地形本身的参数对成像也有决定性的影响。

The results show that shallow sea bottom topography mapping by SAR is strongly related to radar parameters , sea states and bottom topography itself .

首先X波段雷达遥测可以随时随地的测量近域海况，这是星载或机载雷达所不能实现的。

First of all , the x ‐ band radar telemetry can monitor the near shore at anytime and anywhere , which is not available for space ‐ borne or airborne radar .

由于船舶横摇运动的复杂性、非线性、时变性和海况的不确定性，经典PID控制难以获得满意的控制效果。

Because of complexity , non-linearity , time-varying of ship roll motion and uncertainty of sea condition , satisfied control effect is very difficult to be obtained with conventional PID controller .

综合运用控制软件MATLAB和虚拟样机软件ADAMS，建立升沉补偿系统的振动控制仿真模型，进行不同海况下的仿真分析。

The control software MATLAB and the virtual prototype software ADAMS were used synthetically to build a simulating model of heave compensation system and simulate in various marine environment .

测试分为两个方面：第一方面是DeltaLinda拖轮在不同海况及航向、航速下的横摇运动仿真。

Simulation test is classified into two categories . One is to analyze the rolling motion of Delta Linda tug in different sea states , course and speed .

我们两人都不确定我们有足够的经验去应付Galapagos的复杂海况。

We both were unsure if we had sufficient experience for the Galapagos .

Spar是一种十分适合南海海况的深水浮式平台，以优越的运动稳定特性和良好的经济性著称。

Spar platform has superior motion and stability properties , it is very adaptable to south ocean conditions in China .

特别是针对船舶航行时的不同海况和天气条件，给GPS定位误差估计引入了影响因子后，使舰船GPS导航系统定位误差信号仿真更加精确和可靠。

Through calculating the accurate situation of marine and through estimating the GPS situation error , especially the error factor according to different states of the sea and weather , the model becomes more accurate and reliable than before .

适应式PID算法是根据船舶航行时的天气、海况、负载及航偏角大小改变PID比例、积分、微分系数以适应船舶航行需求；

The algorithm of adaptive PID can change the coefficients of proportional , integral and differential gains according to the condition of weather , sea states , loading and the heading error so as to suit the demands of ship 's navigation .

根据研究结果和实际海况资料，应用HARP程序对卡拉奇港单点系泊系统工程实际进行了耦合分析。

The time-domain coupled analysis of the single point mooring system which is parked at Karachi port has been done using HARP program based on research results and reality oceanic conditions .

该文给出一种调频中断连续波（FMICW）高频地波海况监测雷达的仿真模拟检验系统。

An ocean echo signal simulation system for verification and calibration of FMICW high frequency ground wave radar is presented in this paper .

结果表明：大亚湾海区微表层海水对氮、磷、硅营养盐均有富集作用，因海况及季节不同，富集因数（EF）与其他海区的有所差别；

Results showed that there were sea-surface microlayer enrichment effects on N , P , Si and the effects varied with the different sea-conditions and seasons while the enrichment factor ( EF ) differed from other sea areas .

在恶劣海况下和±15%的模型摄动下，航向超调控制在5%以内，并且可以无静差地保持设定航向，调节时间在300s左右。

The overshoot for course keeping is controlled within 5 % without static error under severe sea states and for ± 15 % model perturbation .

本文运用模糊自适应PID控制理论，并用TMS320F2812数字信号处理器为核心的硬件电路对猎雷声纳基阵稳定控制系统进行控制，从而满足其在各种海况下的稳态指标和动态要求。

Adaptive fuzzy-PID control and DSP ( TMS320F2812 ) based hardware are two key factors used in this project to fulfill the control of the sonar array attitude stabilizing system for mine-hunting sonar arrays in order to achieve the stable and dynamic criterions of the system .

本文根据Holtrop方法预报推进因子和伴流分数，在确定拖轮以后准确预报在不同海况下航速与功率。同时，还简要的介绍了迁航设备的准备情况。

After deciding the tugboat , the speed and power can be predicted more exactly , and the preparation of transition equipments are introduced meantime .

采用三维势流理论计算水动力，着重分析8种浪向、5种海况以及12种连接器刚度的改变对MOB和连接器载荷的影响。

The 3-D source distribution method is adopted to determine the hydrodynamic forces . In order to study the characteristics of MOB connector dynamic responses , the module motions and connector loads are calculated in consideration of 8 wave angles , 5 sea states and 12 connector stiffness cases .

张力腿平台（TLP）是目前深海油气开发最常用的形式之一，其升沉运动小，适用水深大，抵抗恶劣海况能力较强，具有很高的性价比。

Tension Leg Platform ( TLP ) is one of the mostly widely used platforms in deepwater oil and gas exploitation . Because of its small heave motion , wide range of applicable depth , strong ability to resist negative sea conditions , and excellent cost performance .

基于Longuet-Higgins分布将表征长期海况的波浪散布图分解为单个规则波的散布图，以此进行柔性立管的疲劳分析，并与随机波法的计算结果进行了比较。

The Longuet-Higgins distribution is employed to decompose the wave scatter diagram into an individual regular wave scatter diagram , based on which various analyses are performed to estimate the fatigue life of a flexible riser .

相关的理论包括，海浪谱的原理及如何用海浪谱计算海面上波的参数，如何使用Gerstner模型计算海面上水质点的位移，以及风级与海况等级的相关知识。

Related theories including , the principle of sea spectrum and how to calculate wave parameters on sea surface with sea spectrum , how to calculate water parcel displacement on sea surface with Gerstner model , and the related knowledge on wind scale and sea state level .

分析了主要噪声，即海面斑点噪声和接收机热噪声对高度估值的影响，通过对几种典型海况海面回波的模拟分析表明，系统则高精度可达±2cm。

The effects to height evaluation of the main noises , i.e. ocean surface backscatter speckle noise and receiver thermal noise , are analyzed . By analyzing the returned signals of several typical sea states , the results have shown that the system height measurement precision can be ± 2cm .

根据1000米海试总体设计方案（V4.0），用计算机仿真升沉补偿系统在实际海况下的运动趋势和规律，并求取其可行域；为实现监测界面的可视化提供数据基础；

The motion trend and laws of the heavy compensation system in real ocean environments were simulated by computer according to the Design of the Trail of Ocean Mining in 1000m Deep , and the available range of device working is draw out through the results of simulation .

复杂海况下舰船微弱信号的时频辨识研究

Time-frequency Identification of Weak Warship Signals in Complex Sea State Background

最佳航线与海况相关模拟试验

Simulated test of relationship between the optimum routing and sea-conditions

高海况实船微弱水压场信号测量技术研究

Entity Ship Hydraulic Pressure Field Acquiring on High Sea State

极端海况下海洋石油结构的风险评估

Risk Assessment for Offshore Oil Structures under Extreme Sea Environment

自适应水压引信在高海况背景环境下的研究

Research on Adaptive Water Pressure Fuse In High Sea Conditions

基于海况环境激励的某船载装置动力学分析

Dynamic Analysis of Ship-borne Device Based on Sea State Excitation