共查询到19条相似文献，搜索用时 359 毫秒
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海洋环境观测技术的产业化李允武（国家海洋局海洋技术研究所天津）１海洋观测技术与产业的关系密切海洋观测技术是指从位于空间、海面、水体、海底的观测平台上，利用各种传感器对海洋（包括气、水、岩石圈）的物理、气象、化学、生物、地球物理、地质等参量进行系统、经... 相似文献
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孙效功 《中国海洋大学学报(自然科学版)》1995,(1)
分析灰色系统ＧＭ（１，１）模型建模中所存在的问题，提出以现代非线性回归分析的方法改进ＧＭ（１，１）模型的建模方法．实例计算表明该方法优于传统的建模方法。 相似文献
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SZC11-1型深海水文仪的盐度测量 总被引：1，自引：0，他引：1
ＣＴＤ测量系统和ＳＴＤ测量系统是海洋调查中现场测量海水盐度、温度和压力的常规调查设备。两种系统的盐度测量技术分别采用计算法和补偿法。这两种方法具有各自的优势，也都在某些方面存在不足或在应用中受到各种技术条件的限制。本文介绍一种新的深海盐度测量方法。它充分发挥了计算法和补偿法测量技术的优势，而克服了单独应用某种方法带来的困难。这种新技术首先应用在我国研制的ＳＺＣ１１－１型深海水文仪系统之中，取得了满意的效果 相似文献
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历经两年多的努力,胜利石油管理局钻井工艺研究院与国家海洋局第一海洋研究所承担的“海上平台桶形基础系统技术研究”前不久通过审定。专家组对这一技术给予了很高评价,认为这一新技术在我国海上平台的成功应用,必将使我国海上平台桶形基础系统技术获得长 相似文献
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介绍了一种用于桶形基础平台负压沉贯施或的智能化监测与控制系统。在该系统的监测与控制下,我国第一座海上桶形基础平台（胜利油田ＣＢ２０Ｂ）经过４ｈ的负压沉贯施工安装就位成功。此平台已投入使用１ａ多,工作状况良好。对该系统的组成、各部分功能和使用效果做了较详细的介绍。 相似文献
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信道自身的复杂性和现场级试验的高投入、高风险限制了水声通信技术的发展。针对高效率水声通信技术研究的需求,提出1种水声通信半物理仿真平台水声通信半物理仿真平台(A Hardware-in-Loop Simulation Platform for Underwater Acoustic Communication)。水声通信半物理仿真平台以可配置水声Modem为核心,包括现场测试采集系统、算法仿真评估系统、算法实现装载系统、水声波形存储播放系统。基于建立的水声通信半物理仿真平台,进行水声直接序列扩频通信系统的半物理仿真研究,结果表明水声通信半物理仿真平台可有效提高水声通信技术的研究效率。 相似文献
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ＳＺＹ２－１型便携式盐度计苏锐（天津国家海洋局海洋技术研究所天津）１概述ＳＺＹ２－１型便携式盐度计是海洋技术研究所于１９９２年研制开发的现场表层海水的盐度测量仪器。经过用户的使用和不断的改进，现已定型生产。它是目前国内最小型的测盐仪器，它具有便于携带... 相似文献
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为了解决HBF1-1型近海遥测波浪仪的原始数据保留方式与数据处理能力,本文提出了以IBM/PC微机代替原系统单板机的方法,并设计了“ADL”与“SPE”数据采集与处理程序,经与ENDECO 956浮标观测资料的比较以及1a的海上观测应用,证明该方法所获得的资料是可靠的。 相似文献
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《Marine Geodesy》2013,36(3-4):147-157
On 7 December 2001, Jason-1 was successfully launched by a Boeing Delta II rocket from the Vandenberg Air Force Base, California. The Jason-1 satellite will maintain the high accuracy altimeter service provided since 1992 by TOPEX/Poseidon (T/P), ensuring the continuity in observing and monitoring the Ocean Dynamics (intraseasonal to interannual changes, mean sea level, tides, etc.). Despite one-fourth the mass and power, the Jason-1 system has been designed to have basically the same performance as T/P, measuring sea surface topography at a centimetric level. This new CNES/NASA mission also provides near real-time data for sea state and ocean forecast. The first two months of the Jason-1 mission have been dedicated to the assessment of the overall system. The goals of this assessment phase were: 1. To assess the behavior of the spacecraft at the platform and payload levels (Jason-1 being the first program to call on the PROTEUS versatile multimission platform for Low and Medium Earth Orbit Missions developed in partnership between Alcatel Space and CNES); 2. To verify that platform performance requirements are met with respect to Jason-1 requirements; 3. To verify that payload instruments performance requirements evaluated at instrument level are met; 4. To assess the performance of the Jason-1 Ground System. This article will display the main outputs of the assessment of the system. It will demonstrate that all the elements of the onboard and ground systems are within the specifications. Provision of data to the Jason-1 Science Working Team started at the end of March 2002. This is the goal of a six-month phase after closure of the initial assessment phase to derive the error budget of the system in terms of altimetry user products. 相似文献
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1Bit极性重合相关器的研究 总被引：2，自引：0，他引：2
介绍一种应用于水声系统的接收电路：1Bit极性重合相关器。由于水下信号传输系统存在着：通道之间的频率间隔小、易受噪声干扰、用电池供电而要求长时间工作等问题，相应地，接受电路就必须具有窄带滤波能力，抗噪声性能良好，并且功耗极低。而普通的模拟滤波器或数字滤波器无法全面地满足这些要求。1Bit极性重合相关器极好地解决了这个问题，它不仅满足上述要求，而且有着结构简单、体积小、性能稳定等优点。作为水下信号传输系统的重要环节，1Bit极性重合相关器运行非常准确而且可靠，值得在水声系统中推广。 相似文献
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Effects of petroleum hydrocarbons on the hepatic cytochrome P450 1A1 system in rainbow trout 总被引：1，自引：0，他引：1
Effects on the hepatic cytochrome P450 1A1 system were investigated in juvenile rainbow trout i.p. injected with three different aromatic containing fractions: kerosene, light gas oil or heavy gas oil, originated from distilled North Sea crude oil. Kerosene treatment resulted in no effect on the P450 1A1 system, light gas oil injection caused a weak induction of EROD activities and heavy gas oil treatment resulted in a prominent induction of EROD activities as well as accumulation of CYP1A1 mRNA and P450 1A1 protein levels. The effects of heavy gas oil were compared with effects of β-napthoflavone (β-NF) on the P450 1A1 system. It was obvious that important discrepancies seemed to exist between EROD activities and corresponding CYP1A1 mRNA and P450 1A1 levels in rainbow trout treated with either heavy gas oil or β-NF i.e. heavy gas oil treatment resulted in higher specific EROD activities (EROD/P450 1A1) compared to β-NF. GC-MS analyses revealed that liver and bile from heavy gas oil treated rainbow trout in addition to naphthalene also contained polycyclic aromatic hydrocarbons such as phenanthrenes, anthracene, pyrenes, fluoranthene benz(a)anthracene and chrysene, while none of these compounds were detected in control trout. 相似文献
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P. Vincent S. D. Desai J. Dorandeu M. Ablain B. Soussi P. S. Callahan B. J. Haines 《Marine Geodesy》2003,26(3):167-186
The Jason-1 satellite was launched on 7 December 2001 with the primary objective of continuing the high accuracy time series of altimeter measurements that began with the TOPEX/Poseidon mission in 1992. To achieve this goal, it is necessary to validate the performance of the Jason-1 measurement system, and to verify that its error budget is at least at the same level as that of the TOPEX/Poseidon mission. The article reviews the main components of the Jason-1 altimetric error budget from instrument characterization to the geophysical use of the data. Using the Interim Geophysical Data Records (16DR) that were distributed to the Jason-1 Science Working Team during the verification phase of the mission, it is shown that the Jason-1 mission is performing well enough to continue studies of the large-scale features of the ocean, and especially to continue time series of mean sea-level variations with an accuracy comparable to TOPEX/Poseidon. 相似文献
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J. Perbos P. Escudier F. Parisot G. Zaouche P. Vincent Y. Menard F. Manon G. Kunstmann D. Royer L. -L. Fu 《Marine Geodesy》2003,26(3):147-157
On 7 December 2001, Jason-1 was successfully launched by a Boeing Delta II rocket from the Vandenberg Air Force Base, California. The Jason-1 satellite will maintain the high accuracy altimeter service provided since 1992 by TOPEX/Poseidon (T/P), ensuring the continuity in observing and monitoring the Ocean Dynamics (intraseasonal to interannual changes, mean sea level, tides, etc.). Despite one-fourth the mass and power, the Jason-1 system has been designed to have basically the same performance as T/P, measuring sea surface topography at a centimetric level. This new CNES/NASA mission also provides near real-time data for sea state and ocean forecast. The first two months of the Jason-1 mission have been dedicated to the assessment of the overall system. The goals of this assessment phase were:
1. To assess the behavior of the spacecraft at the platform and payload levels (Jason-1 being the first program to call on the PROTEUS versatile multimission platform for Low and Medium Earth Orbit Missions developed in partnership between Alcatel Space and CNES);
2. To verify that platform performance requirements are met with respect to Jason-1 requirements;
3. To verify that payload instruments performance requirements evaluated at instrument level are met;
4. To assess the performance of the Jason-1 Ground System.
This article will display the main outputs of the assessment of the system. It will demonstrate that all the elements of the onboard and ground systems are within the specifications. Provision of data to the Jason-1 Science Working Team started at the end of March 2002. This is the goal of a six-month phase after closure of the initial assessment phase to derive the error budget of the system in terms of altimetry user products. 相似文献
1. To assess the behavior of the spacecraft at the platform and payload levels (Jason-1 being the first program to call on the PROTEUS versatile multimission platform for Low and Medium Earth Orbit Missions developed in partnership between Alcatel Space and CNES);
2. To verify that platform performance requirements are met with respect to Jason-1 requirements;
3. To verify that payload instruments performance requirements evaluated at instrument level are met;
4. To assess the performance of the Jason-1 Ground System.
This article will display the main outputs of the assessment of the system. It will demonstrate that all the elements of the onboard and ground systems are within the specifications. Provision of data to the Jason-1 Science Working Team started at the end of March 2002. This is the goal of a six-month phase after closure of the initial assessment phase to derive the error budget of the system in terms of altimetry user products. 相似文献
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王宁 《中国海洋大学学报(自然科学版)》1996,(1)
讨论AKNS完全可积分系的一种2＋1维一般化。给出对应的Kdv方程及SineGordan方程的一种2＋1维一般化，导出其Hamilton形式。证明了经变量变换后，这类2＋1维完全可积分系可化为1＋1维已知可积分系。 相似文献