Accurate forecasting of time series is crucial across various domains. Many prediction tasks rely on effectively segmenting, matching, and data alignment. For instance, regardless with the same granularity, segmenting them into different granularity events can mitigate impact varying scales accuracy. However, these frequently intersect each other, which may possess unequal durations. Even minor differences result in significant errors when matching future trends. Besides, directly using...

The 3D location of light emitters provides essential information in many biological, chemical and physical systems. 4Pi single-molecule localization microscopy (SMLM) being one the state-of-the-art techniques exceptional precision axial direction; however, lateral degrades significantly when emitter is displaced several wavelengths away from mutual focal plane. Here we propose a hybrid system employing type-B microscope engineered point-spread function (PSF), resultant interferometric PSF...

Abstract The melt pool temperature plays a very important role in the laser additive manufacturing (LAM) process which has been widely used different industries. In this process, simple scan strategies and constant power levels are usually used, will elicit variations ultimately affect forming quality such as cracks pores. paper, new method for improving was presented, calculates local thermal distribution dynamically by analyzing scanning path included G-code file. A factor called (TDF) to...

As the device in general inspection maintenance, can only carry on system static parameter measurement, and dynamic performance of be judged by qualitative observation.In this paper, we adopt modular design scheme method based synchronous sampling real-time data processing, through online collection, fitness, amplification, filter analysis signal, on-line detection equipment servo parameters is realized.This detect modulates stationary target speed, maximum precision tracking error other...

Recent year, the method based on face verification has been one of most vibrant study aspect in field.The problem can be defined: imputing picture or video, identifying validating by using database."video-video" means inputting video setting, data。It useful information, including: a lots pictures person, continuity time and space three dimension model etc. 1.PCA verificationRecent inputing etc.The way that information described present literature summarized as follows: vector、matrix...

the development of electric power and communication technology promotes apply cable widely, trouble become more more.establish measure breakpoint location range system to locate rapidly, can be calculated by interval time that pulse transmit receive.All kinds used widely as develop, core broken is a common phenomenon.And work examine repair heavy.For lay underground, covered protect shield stuff, simple tools not find breakpoint, it must adopt special way location.So finding precondition...

the ionosphere detector is detection equipment, its can be long-term, effective and stable operation, relationship effectively normal detection.Therefore, it imperative to research on fault diagnosis of detector, this paper mainly analyses transmitter, find out common phenomenon possible reasons, lay foundation for next step research.

in this paper, the ionospheric detector receiver analog channel are analyzed, and comb out different kinds of common failures, due to fault has uncertainty inaccuracy how modeling ionosphere reasoning, is a key problem for its diagnosis.

This paper introduces the design of a radar plane position indicator (PPI) fast debugging equipment based on USB.Hardware platform is high-speed 16 channel date acquisition card -USB4716,which USB.Its internal actual 8 parallel 16AD module.The sampling length and frequency can be set by software.PC interface compile VC++2008, finish data processing waveform.

To improve the coverage rate of wireless sensor network node in campus and prolong lifetime, an optimization method for based on escape particle swarm algorithm has been proposed basis analyzing defects basic algorithm. Firstly, with as objective, is adopted solving genetic crossover mechanism introduced during process to maintain diversity prevent “precocity”. In addition, momentum smooth searching path, accelerate convergence finally performance tested through simulation experiment.

The algorithm of attribute reduction based on discernibility matrix is advanced.The advanced uses the dependence decision to condition as heuristic information.The can debase complexity constructing effectively.The value advanced, and wrong rules be avoided.

The application of short-term weather forecast in meteorological disaster prevention is great practical significance. relevant broadcast mode has timeliness and comprehensiveness today's digital information age, can play a value role management prevention. For example, it help managers operators take scientific effective measures to prevent control climate disasters through real-time transmission information. At the same time, also formulate more planning process urban governance management,...

For the radar detection system, design of display and control subsystem has strong pertinence, flexibility some universality. According to technical feature detecting requirements ionosphere doppler oblique return this paper realizes operation system in a structured way. The terminal software developed by multithreading technology, can be realized Terminal, arithmetic hardware which executed parallel. also functions controlling, data processing, displaying, automatic time detecting,...

The random impulsive noise and radio-frequency interference are the common interferences in radar detection, which will seriously affect extraction of echo parameter. Utilizing irrelevance between impulse radio frequency-interference on time, space, frequency domain radar, two-dimensional order statistics filtering to filter observation scattering function diagram after-observation ionization at same this paper ends up with great results, building a foundation for results data processing...

With the increasing complexity and diversity of radar functions, a large number random nonlinear factors need to be taken into account in design analysis radar. In addition, actual experimental environment, there are many constraints, parameters very discrete. Sometimes order obtain more accurate parameter, it is necessary repeat facts times. this way, manpower material resources consumed enormous. It not only increases funds for scientific research, but also delays progress research. These...

From the point of view differential phase delay experienced by two counterpropagating optical fields, self-starting mode-locked fiber laser with a nonlinear amplifying loop mirror (NALM) is theoretically studied. Although it generally believed that NALM shows saturable absorption effect on both continuous wave (CW) light and pulses, we find counter-intuitive fact cross-phase modulation (XPM) leads to opposite signs shifts (NPSs) in these cases, resulting inverse (ISA) during pulse formation...