| 1. | Partial averaging of wave data and estimates of spetral moments of wind waves
海浪资料的平滑和海浪谱谱矩估计 |
| 2. | Real - time simulation and spectrum - analisis of a dynamic positioning system ship in waves
船舶动力定位海浪环境的实时仿真与海浪谱分析 |
| 3. | One of these problems is the broadening of the first order sea echo doppler spectrum , which most likely swamps the targets spectrum
本文针对这样一个关键性问题?展宽海浪谱中信号检测问题展开研究,即如何应用超分辨谱估计技术来实现目标的检测与分辨。 |
| 4. | Hirayama t , et al . directional ocean wave measurement utilizing running ship motion and radar images [ j ] . 1997 , omae - volume , safety and reliability asme 1997
由航行中的船体运动实时推算海浪谱- -方向波谱的推算[ j ] .关西造船协会志, 1987 ,第204号.李俊兴译 |
| 5. | Using the above relations , this paper has compared several wave spectrum formular with actual spectrum , and the result is satisfactory
同时用上述关系式对目前工程上常用的几种海浪谱计算公式进行了对比分析，并与实测谱进行了比较，结果表明所得关系式与实际拟合良好。 |
| 6. | In order to develop these analytical models into practically applicable forms , the forth order momentum of jons wap spectrum is estimated using the time - averaging technique ( glazman 1986 )
为获得便于应用的模式，本文采用glazman ( 1986 )滑动平均方法估计海浪谱矩。 |
| 7. | Part i : since the study about breaking onset criteria base on the downward acceleration or on the wave slope shows great discrepancy , the models that estimating breaking probability and whitecap coverage according to these two . criteria are problematic
第一部分：因所采用的动力学或波陡判据的不确定性和海浪谱四阶矩的难以确定，现已提出的关于风浪破碎率和白浪覆盖率的统计模式有一定的不确定性。 |
| 8. | This paper applies ittc single - parameter ocean wave spectrum to simulate a random long - crested ocean wave according to statistics superposition theory and real - time simulate disturbance on the ship by random wave . it simulates roll and pitch of the ship in random wave in the time domain and gains roll angle ( t ) and pitch angle ( t ) signal of ship rolling movement
本文根据统计叠加理论，采用ittc单参数标准海浪谱仿真模拟实际的长峰波随机海浪，进而实时仿真长峰波随机海浪对船舶的随机扰动，对船舶在海浪中的横摇和纵摇运动进行了时域仿真，得到船舶摇荡运动的横摇角信号( t )和纵摇角信号( t ) 。 |
| 9. | Finally , the paper introduces the test of wave simulation by wave - making system that has improved . the test data indicate that it is able to competent at wave simulation of sea wave spectrum for shipmodel test , we have changed the situation that the wave - making system ca n ' t simulated sea waves . and have established the foundation for the quality of improving the scientific research of our school and experiment teaching further
最后，本文介绍了对改造后的造波系统进行波浪模拟测试情况，试验数据表明，该造波机经过升级改造，完全可以胜任对船模耐波性试验所要求的海浪谱的模拟，并且还可以根据需要模拟任意的海浪谱，模拟精度达到试验要求。 |
