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In order to improve the robustness of Adaptive Matched Field Processing(AMFP), a Conditional Probability Constraint Matched Field Processing (MFP-CPC) is proposed. The algorithm derives the posterior probability density of the source locations from Bayesian Criterion, then the main lobe of AMFP is protected and the side lobe is restricted by the posterior probability density, so MFP-CPC not only has...
Following the trend of big data, the business value of data is becoming a hot research field in recent years. The novel concept of Data Jacket introduced by Ohsawa et al. solved the difficult problem of data transactions due to the particular characteristic of data, i.e. the safeguarding privacy. In order to make sure the mechanism of the market of data, there are some researchers proposed a gamified...
With the development of the smart meters, demand response (DR) is able to provide fast ancillary services, such as frequency control. Some recent studies demonstrated that DR can perform like thermal generators in the frequency control. However, little attention has been paid to DR's effect on the electromechanical oscillations of the power system. Fast-response DR can not only affect system frequency,...
With the maturity of the self-driving car technology, the self-driving car advertising platform will provide the excellent capability of precision personalized advertising recommendation, and bring great changes to current advertising modes. By proposing the model and the system architecture of the future self-driving car advertising platform, this paper design the scheduling algorithm and dynamic...
Context-aware systems for smart environments can be very complex and demanding for developers especially in distributed computing and communication environments. We propose a new development infrastructure, that targets this challenge by improving the general system's scalability and traceability. The infrastructure has been developed for and tested in two research labs for smart environments and...
A monocular vision detection system was designed for multipoint pulse signals detection. The system consists of three parts. The first is pulse image acquisition device, which is used to collect dynamic pulse images. The second is multipoint pulse signals extraction algorithm that is using suitable digital image processing methods to process the collected pulse image sequence, and adopting monocular...
Aiming at the problem that the dual-frequency ultrasonic extraction of puerarin is difficult to detect effectively and efficiently with the method of manually watching and off-line detection, a method of soft sensor modeling is proposed. In the method, the genetic algorithm and the support vector machine (GA-SVM) are combined to build the soft measurement model of the puerarin extraction. By using...
Connected automated vehicles are now moving towards reality. With the help of advanced artificial intelligence and vehicle-to-vehicle/ vehicle-to-infrastructure communication, connected automated vehicles can keep higher speed with shorter headway, and drive with neighboring vehicles to formulate platoons. The application of connected automated vehicles will change the relationship of traffic flow...
In this paper, the circuit model of 1000A/75mV shunt was calculated based on field-circuit coupling method by designing an interactive computer program between numerical analysis in MATLAB and finite element analysis in ANSYS. The calculate results provide the basis to analyzing measurement results when measuring transient current or alternating current with shunt.
This paper presents an equivalent circuit model of a piezoelectric micromachined ultrasonic transducer (PMUT) array, combining an acoustic coupling model originally developed for capacitive micromachined ultrasonic transducer (CMUT) arrays and an electro-mechanical model of the individual PMUTs in the array. This model is experimentally validated with PMUT arrays of varied sizes and accurately predicts...
Short pulse transmission and reception is important for piezoelectric micromachined ultrasonic transducer (PMUT) arrays to achieve high resolution. However, coupling effects cause PMUT arrays to exhibit long decay times following the transmit pulse and poor axial resolution. Here, we model the mutual acoustic impedance that couples PMUTs in an array to show that the decay behavior can be accurately...
As the role of energy storage and filtering in DC/DC converter, the inductor is widely applied in switching power supply designs. BOOST inductor affects the input/output ripple voltage and current. Improper parameter design can cause inductor saturation easily, so the inductor design is the emphasis and difficulty in the Boost circuit design. In this paper, combining the traditional parameter calculation...
A novel tubular transverse-flux flux-reversal permanent magnet linear motor (TTFFRPMLM) for long stroke applications is designed and analyzed in this paper, which not only has the low cost advantage of the existing flux-reversal motor (FRM) by combining both PMs and armature coils in short primary, but also can address the problem of complicated structure of the existing transverse-flux motor (TFM)...
The tubular transverse-flux and flux-reversal linear permanent magnet motor (TTF-FRLM) is a relatively novel linear machine which has approximate sinusoidal back-EMF waveform and high thrust force density. Because of its salient pole structure in the secondary, the force ripple is relatively large which is not conductive to high performance applications. New approach for suppressing force ripples...
Rotor speed changes with variation of electrical power witch controlled by converter in doubly-fed induction generator(DFIG), compared to the large thermal power unit DFIG is more suitable for adjusting the power fluctuation of fast varying component. In this paper, a primary regulating strategy of DFIG by distinguishing power fluctuating frequency is presented. DFIG is expected to participate in...
This paper investigates path loss characteristics for Vehicle-to-Infrastructure (V2I) communications in urban and suburban scenarios. We carried out measurements at 5.9 GHz. The transmitter antenna heights are 3.5 m and 1.5 m and the position of the receiver antenna is on the roof of the car. Then we analyzed the path loss characteristics by using the measured data. The results are helpful for the...
This paper investigates the channel parameter estimation algorithm by using the Space-Alternating Generalized Expectation-Maximization (SAGE). Two strategies, i.e., parallel interference cancelation (PIC) and serial interference cancelation (SIC), are implemented and validated in the simulated SV channel model. Based on the massive MIMO channel measurement results in an indoor hall scenario in the...
Homework review is a crucial process oi learning in which teachers can assess the learning condition oi students and the whole class. Accordingly, teachers can make adjustments for further teaching. However, there are some key problems which make homework review a pressure ior teachers, such as large amount of assignments versus teachers' limited time. Under this condition, teachers could not give...
In this paper, an integrated optoelectronic chip, which can transmit optical signal at 849.2nm and receive optical signal at 803nm, is proposed. It is constructed by integrating a VCSEL unit above a PIN-PD unit. Analysis show that, the VCSEL unit has a threshold current around 1mA and a maximum output power around 1.2mW at 849.2nm, the PIN-PD unit has a highest absorption quantum efficiency above...
As low-altitude atmospheric refractive conditions significantly affect the shipboard radars and radio communication conditions in the maritime environment, characterizing marine atmospheric boundary layer properties, ducting in particular, is thus crucial for air-sea interaction research. The CASPER-East at-sea experimental campaign conducted off the coast of Duck, NC, during October-November of 2015,...
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