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Enhancement of nerve sequence slice images is a key step of three-dimensional reconstruction of peripheral nerve. This paper presents a truly multi-scale, multi-directional decomposition method called surfacelet transform for sequence slice images for the reason that low-contrast enhancement effect of nerve slice images is not obvious, the method takes nerve sequence slices as a three-dimensional...
Based on the principle of delay-and-sum beamformer, a four channel speech enhancement design scheme was proposed. Here the principle of designed hardware and software was introduced. Hardware design includes singlechip, digital-to-analog and analog-to-digital converter, electrocircuit connect and so on. In design software run in real time is a very important problem. In order to solve the problem,...
The silver conductive films are formed by depositing the Ag nanoparticles (NPs) inks dispersion onto the plastic substrate and drying the solvent at room temperature. This paper aims to investigate the effects of the different capping agent poly(vinylpyrrolidone) (PVP), polyaniline (PAN), L-cysteine (L-cys), and oleic acid (OA)) on the electrical resistivity. The high conductivity was achieved by...
A mobile robot localization design scheme combined ZigBee and distributed microphone array is introduced. Firstly, the frame of localization system composed of eight-element microphones array, two ZigBee point to point communications modules are proposed. Secondly, generalized cross-correlation (GCC) function based on time delay of arrival (TDOA) is introduced to the system design. In order to improve...
According to the problem of multi-UCAV air-combat task allocation in uncertain environment, first consider the uncertainty elementsin the air-combat, the model of air-combat situation based on interval information is built, and combinat air combat situation predominance and attack gains, Finally, the model for task allocation of Multi-UCAV cooperative combat is built. Then Analysy to solve the problem...
This paper established the multi UAV incomplete information dynamic game model under uncertain environment based on incomplete information dynamic game theory and the problem of multi UAV attack-defend; for the interval information payment matrix under the uncertain environment, solve the incomplete information dynamic game Bayesian Nash equilibrium solution and get the optimal UAV combat strategy...
According to the air combat state characteristic of multi-UCAV confront multi-objectives, regarding the possible compound mode of own and enemy which attack each other by 1vs1 as policy set, starting with analysis air combat state of own and enemy, dominance interval matrix of both own and enemy can be got and then profit matrix in style of single matrix can be got too. then establish the zero-sum...
Considering the decision-making problem for UCAV cooperative attack on multiple aerial targets, this paper analyzed the air combat situation superiority, established the UCAV angel superiority model and speed superiority model. Taking into account the target value and the ability of our UCAV attacks on targets, we established the attacks income model. Considering air superiority and attack income...
Firepower allocation in multi-UCAV cooperative combat is important parts in modern combat aircraft. in view of the complexity and real-time features of the air combat, Synthesized the state predominance, air combat efficiency index predominance and threat, considering effect of attack predominance to missile hit probability, the method of firepower allocation in multi-UCAV cooperative combat for multi-target...
We proposed a monolithic suspended membrane ring (SMR) resonator with focusing subwavelength grating for mid-infrared applications. The SMR with Q of ∼ 10000 and extinction ratio of ∼ 13 dB was measured in near-infrared.
In this paper we study UCAV offensive and defensive game about the uncertain information of the anti-aircraft fire. Using game theory we build the mathematical model of the UCAV attack and defense, we describe both the offensive and defensive strategies set and get the definition of payment and calculation functions and establishing a global matrix, get the Nash equilibrium by using the method of...
Task assignment of multi-UCAV is one of the key technologies of task planning system. To get a reliable decision results, the uncertain indicators of task assignment are considered in this paper, and the indicators are represented as interval-uncertain information. Then, the task allocation model under uncertain environment is established, and the task assignment method based on the ideal point method...
In this paper, polyimide/multi-walled carbon nanotubes(PI/MWNTs) triple hybrid films were fabricated through thermal imine process of pure polyamic acid and polyamic acid hybrid solution. Polyamic acid (PAA) hybrid solution was synthesized via in situ polymerization with 4, 4-diamino diphenyl ether (ODA) and pyromellitic acid dianhydride (PDMA) as monomers in DMAc solvent with MWNTs modified by mixed...
We describe a platform for mid-infrared silicon photonic devices based on focusing subwavelength grating coupler (SWG) and suspended membrane waveguides. The focusing SWG was designed for 2.75 μm wavelength. 24.7% coupling efficiency was measured. The suspended membrane waveguide was optimized in terms of holes size and etch depth.
Test results of a packaged silicon photonics based mode multiplexer are presented. A structure with four chirped grating couplers can support all 6 channels in a two-mode fiber and excite LP01 and LP11 modes selectively.
Induction motor load will absorb more reactive power during power system fault, and large scale interconnected power system will front transient instability due to the lack of adequate dynamic VAR supporting. This paper focuses on a detailed discussion of the induction motor load as it pertains to voltage stability studies. Meanwhile, a comparative study on the transient support ability of SVC and...
With several extraction methods discussed focused on contour corner, this paper presented a detection method based on multi-scale curvature polynomial (MCP), by making use of multi-scale information and the scale uncertainty of corner. Region profile at different scales and the corresponding curvature values were obtained by using the detection method of the curvature scale space (CSS), and the weighted...
This paper is devoted to the event-triggered control for Lurie systems. Under the event-triggered control, the control task is only executed when an event occurs. By the Lyapunov technique, a sufficient condition for the existence of an event condition and the event-triggered controller is provided, which also guaranties the absolute stability of the Lurie system. This sufficient condition is presented...
This paper presents a probabilistic fuzzy method for emitter identification (EID) based on the data-driven model. The input attributes of the EID problem include the radio frequency (RF), pulse repetition interval (PRI), pulse width (PW), etc. Given a fuzzy partition of the input attributes, a method for deriving a set of probabilistic fuzzy rules from training data is presented. With the aid of genetic...
The problem of closest pair is a basic problem of computational geometry. This paper investigates the problem of privacy-preserving closet pair and designs a protocol. This protocol bases on Euclid-distance measure protocol and private comparison protocol. The main idea of this protocol is using the Euclid-distance measure protocol to respectively compute the distances of one party's one point and...
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