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Determining, or selecting a distance measure over the input feature space is a fundamental problem in pattern recognition. A notable metric, called the image euclidean distance (IMED) was proposed by Wang et al. [5], which is demonstrated consistent performance improvements in many real-world problems. In this paper, we present a fast implementation of IMED, which is referred as the convolution standardizing...
The GMTI (Ground Moving Target Indication) performance for circular scanning SAR (Synthetic Aperture Radar) equipped on slow platform was analyzed in this paper. The characteristics of SAR equipped on slow platform and the GMTI application were descript in the beginning, and the circular scanning mode was advanced to resolve the low azimuth imaging efficiency of the slow platform borne SAR. Then the...
Excellent bipolar resistive switching (RS) behavior was achieved in TiN/ZnO/Pt resistive random access memory (RRAM) devices. A unified physical model based on electrons hopping transport among oxygen vacancies along the conductive filaments (CFs) is proposed to elucidate the RS behavior in the RRAM devices. In the unified physical model, a new reset mechanism due to the depletion of electrons in...
It is essential for the digital control system to get initial rotor position of the Permanent Magnet Synchronous Motor (PMSM) to start the drive system. Basically, there are two methods of initial rotor position estimation, named pulse signal injection and sinusoidal carrier signal injection, which inject voltage/current into the motor windings to have rotor information. Based on the analysis of PMSM...
A novel hybrid particle swarm optimization (HPSO) is proposed, which the gradient descent learning algorithm is combined with modified particle swarm optimization (MPSO). Firstly, the MPSO was determined by linearly decreasing inertia weight and constriction factor weight to speed up global search, also crossover and mutation operation was embedded to avoid the common defect of premature convergence...
The feasibility of millimeter wave (MMW) synthetic aperture radar (SAR) onboard the air-to-air missile (AAM) was theoretically investigated in this paper, with the intent of improving the accuracy of guidance and control for AAM. The burst mode was proposed as an optimum operation mode for the air-to-air missile-borne SAR system, considering the resolution requirements, the computational loads as...
This paper presented circular scanning synthetic aperture radar (SAR) based on circular scanning antenna. The work principle of this scanning radar was described. The variations of synthetic, aperture time, azimuth resolution and time-bandwidth product were analyzed. Also a focused imaging algorithm instead of DBS was used to form high resolution image. This algorithm based on extended chirp scaling...
A new algorithm for finding numerical solutions of optimal feedback control of a class of general finite dimensional systems with multi-input is developed. The algorithm is based on the fact that the value function of the optimal control problem is the viscosity solution of its associated Hamilton-Jacobi-Bellman equation. An example that the closed form solutions of optimal feedback control-trajectory...
The prefabricated substations and pad-mounted transformers are widely used in the distribution network in downtown or residential areas, especially during the retrofitting overhead distribution lines to under ground cables. People are seeking ways to reduce ground space occupied by such substations
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