Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology

Qingdao, China

Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology

Qingdao, China
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Yu B.L.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Yu B.L.,Shandong Academy of Sciences | Li J.,Nanjing Southeast University | Li W.Y.,Nanjing Southeast University
Applied Mechanics and Materials | Year: 2014

A novel low-noise amplifier (LNA) suitable for COMPASS receiver applications is designed in SiGe-BiCMOS technology. Inductively degenerated technique and resistive feedback technique are employed to reduce the noise figure. With 1.8V power supply, the measured results achieve 17.23dB power gain and 2.58dB noise figure at 1.561GHz. © (2014) Trans Tech Publications, Switzerland.


Xu Y.-Z.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Xu Y.-Z.,Shandong Academy of Sciences | Xu Y.-Z.,Nanjing Southeast University | Cao Y.-P.,Nanjing Southeast University | Zhong R.,Nanjing Southeast University
Dianji yu Kongzhi Xuebao/Electric Machines and Control | Year: 2015

A nonlinear multi-input multi-output (MIMO) model based on least squares support vector machine (LSSVM) was built according to the measured prototype characteristics, aiming at the problem of accumulated errors with multi-variable output of nonlinear switched reluctance motor (SRM) model. An improvement in structure was conducted compared with the traditional LSSVM modeling of SRM, and the inputs of LSSVM are angle and flux, and, outputs are current, torque and flux partial derivatives of the angle, what's more, this multi-output LSSVM avoids the accumulated errors caused by the previous combination of multi single-output LSSVM. The simulation of LSSVM model was complemented in Simulink using S function. It has been shown by experiments that the current waveform obtained by simulation is consistent with the experimental current waveform. When the peak current is 42A, peak angle is 6.36° and turn-off current is 29A in experiment, the corresponding simulation results are 43.5A, 6.58° and 29A, which verify the correctness and effectiveness of the proposed modeling method. ©, 2015, Editorial Department of Electric Machines and Control. All right reserved.


Yu B.L.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Yu B.L.,Shandong Academy of Sciences | Chen J.,Nanjing Southeast University | Li W.Y.,Nanjing Southeast University
Advanced Materials Research | Year: 2013

A monolithically integrated 10Gbps Vertical Cavity Surface Emitting Laser (VCSEL) current driver is implemented in SMIC 0.18μm RF CMOS technology. High current driving capability as well as agile switching speed is achieved by shunt peaking technique and cascade structure. Test result shows that the driver can drive the common anode VCSEL well working at 10Gbps, and delivers 9.7mA modulation current. With single 1.8V power supply, the core power consumption is 22.5mW and the die size is 800μm×500μm. © (2013) Trans Tech Publications, Switzerland.


Mu H.,Center for Monitoring Research | Mu H.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Mu H.,Shandong Academy of Sciences | Yuan J.,Center for Monitoring Research | And 2 more authors.
Applied Mechanics and Materials | Year: 2014

The optimal control of autonomous profiling monitoring underwater vehicle(APMUV) is investigated. Firstly, dynamics equations in vertical plane with disturbances are constructed, and the equations are converted into a linear system by feedback linearization method and then feedforward and feedback optimal control (FFOC) law is designed for the linear system. To solve the unpractical problem of the control law, we construct a disturbance observer to observe the system states to make a quick convergance of the observed system states. Numerical simulations show the effectiveness of the control scheme. © (2014) Trans Tech Publications, Switzerland.


Yuan J.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Yuan J.,Shandong Academy of Sciences
Applied Mechanics and Materials | Year: 2014

The hydroacoustic transponder based on the principle of laser interferometry is investigated, which consists of three parts: 1) the front-end module, which is a signal receiving and pre-processing module, and consists of a laser interferometric receiver and a filter group; 2) the signal processing module, which consists of the data acquisition module and a data processing system; 3) the back-pulse module, which consists of an automatic gain adjustment module, a transmitter module and a back-transducer. We give the detailed designing flow charts of the hardware and software programs. © (2014) Trans Tech Publications, Switzerland.


Liu B.,Shandong Academy of Sciences | Liu B.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Jiang H.L.,Shandong Academy of Sciences | Jiang H.L.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology
Applied Mechanics and Materials | Year: 2014

Free and constraint modal finite element analysis were conducted on S385 diesel engine block using FEA according to its structural characteristics. The natural frequencies and corresponding vibration modes of the first fifteen steps of each condition of the block were worked out using Lanczos method. By the analysis of vibration modes, the weak spots of the block were found and corresponding improved schemes were brought forward. The analysis results supplied a theoretical support to improve the structural design and the dynamic response analysis of the block. © (2014) Trans Tech Publications, Switzerland.


Wang B.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Wang B.,Shandong Academy of Sciences | Li M.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Li M.,Shandong Academy of Sciences | And 6 more authors.
Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument | Year: 2014

Ocean data buoy is one of the most reliable, most valid and most important ocean observation techniques, which involves many fields such as electronics, communications, control and so on. Ocean data buoy can provide long-term, continuous, real-time, reliable observation data under complicated ocean environment. The system structures and key techniques of ocean data buoy are briefly described. Technical gap between China and developed countries and domestic technical level of ocean data buoy technique are also analyzed in detail. The current development and application status of ocean data buoy techniques are reviewed. System and observation parameters of typical data buoys manufactured by China and developed countries are contrastively analyzed. Finally, the future directions are presented based on previous analysis and China's current situation and the urgent demand. ©, 2014, Science Press. All right reserved.


Zhou Z.-H.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Zhou Z.-H.,Shandong Academy of Sciences | Yuan J.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Yuan J.,Shandong Academy of Sciences | And 2 more authors.
Applied Mechanics and Materials | Year: 2014

An interference image edge detection method for laser interferometer hydrophone based onwavelet packet is investigated. Considering the effect of ocean background noise on the interferenceimage, we propose the use of a class of wavelet packet functions to make decomposition on noisyinterference image, and then make reconstruction on approximate parts of the decomposed image.The approximate parts with the wavelet packet decomposition is of more clear image layerscomparison to the original image, and the wavelet packet decomposition method can reduce theinfluence of background noise on the interference image. Taking the wavelet packet decompositionmethod and other edge detection algorithms for contrast, it is proved that the wavelet packetdecomposition method for edge detection algorithm is more effective than the other algorithms. © (2014) Trans Tech Publications, Switzerland.


Zhang H.-B.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Zhang H.-B.,Shandong Academy of Sciences | Yuan J.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Yuan J.,Shandong Academy of Sciences
Applied Mechanics and Materials | Year: 2014

The modelling method of a full-actuated autonomous underwater vehicle is investigated.The kinematics and dynamics models of the full-actuated autonomous underwater vehicle in three- dimensional space are constructed. Gravity and moment of gravity,current resistance and moment of resistance, buoyancy and moment of buoyancy and thrust and moment of thrust are constructed, respectively. Experiment results show the effectiveness of the proposed modelling method. © (2014) Trans Tech Publications, Switzerland.


Zhang H.-B.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Zhang H.-B.,Shandong Academy of Sciences | Yuan J.,Shandong Provincial Key Laboratory of Ocean Environment Monitoring Technology | Yuan J.,Shandong Academy of Sciences
Applied Mechanics and Materials | Year: 2014

An improved distributed controller for underwater profile monitoring vehicle is investigated. A chattering-free tracking control law based on chattering-free trajectory-tracking control method is proposed to make a automation control of the vehicle and a manual/auto swtiched distributed controller on Underwater Profile Monitoring Vehicle is desinged. We give the designing procedure of hardware and software of the controller. © (2014) Trans Tech Publications, Switzerland.

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