摘要: 字母转置效应是指颠倒单词的字母位置后, 读者仍可识别目标词的现象, 表明字母位置信息编码具有一定的灵活性。近年来, 研究者通过对比不同形态结构词语的字母转置效应, 探讨词语的认知加工方式。本研究采用眼动追踪技术, 结合边界范式考察了不同形态结构双字词的汉字位置信息编码。研究结果显示, 偏正复合词的汉字转置效应小于并列复合词和单语素词, 而并列复合词和单语素词之间没有显著差异。结果表明, 与偏正复合词相比, 单语素词和并列复合词的汉字位置信息编码更为灵活, 表明词语的形态结构会对汉字位置信息编码产生不同的影响, 支持了形态复杂词的双通路加工理论。

The high-squint airborne Synthetic Aperture Radar (SAR) has the ability to detect target area flexibly, and detection swath is significantly increased compared with side-looking SAR system. Therefore, it of great significance carry out research on high-precision imaging methods for SAR. However, echoes have large Range Cell Migration (RCM), resulting in severe range–azimuth coupling strong spatial variation. In this paper, a Modified Doppler Algorithm (MRDA) proposed cope these effects...

The centroid estimation of the beacon spot is crucial to pointing, acquisition, and tracking subsystem in inter-satellite optical wireless communication (IsOWC), especially for received very weak caused by a long link distance. In this work, we propose an accurate positioning method calculate such with low peak signal-to-noise ratio. proposed based on idea that uses normalized amplitude gray gradient enhance weights near center spot. Both comparative numerical simulation experimental...

For free-space optical communication links, the light spot collected by photodetector at receiving terminal is not an ideal that affected atmospheric turbulence. The will also be accompanied various noises. More importantly, presence of all noise bring errors to acquire spot's center. As a result, tracking error can affect stability optoelectronic system. Therefore, it necessary remove from images. method removing needs effective, but cannot large amount calculation real-time performance....

A phase correction method that utilizes fringe color-coding in phase-measuring profilometry is proposed. Original and additional fringes are encoded into the R B channels, respectively. The + channel patterns projected onto an object, captured using a camera, where channels extracted. Then, shifts obtained from utilized for absolute calculation correction. Simulations experiments demonstrate this can correct edge order errors avoid increasing number. Experiments performed G, G B, exhibits...

Absolute phase retrieval has been widely studied, as it is not much influenced by the discontinuity and occlusion of objects in phase-measuring profilometry. In practical measurement, however, fringe order determination no means easy when grayscale deformed patterns degraded because uneven reflectivity or large curvature measured objects. We introduce a phase-shifting coding (PSC) method to overcome that problem. PSC method, encoded amounts additional patterns, decoding algorithm retrieve...

Laser generation and electromagnetic acoustic transducer (EMAT) detection techniques are combined as a hybrid ultrasonic technique for the inspection of defects in steel. transmits through optical fiber irradiates on steel surface. In case inspection, Rayleigh wave is generated to test surface based principle mode conversion. order improve testing accuracy signal-to-noise ratio, wavelet soft-threshold method introduced present work. Experimental results show that errors defect less than 10%,...

This paper presents a use of multi-core DSP TMS320C6678 for the squinted-looking synthetic aperture radars (SARs) real-time signal processing method. first briefly introduces SAR algorithm and analyzes by spectral analysis (SPECAN). Then, according to requirement imaging system, high performance TI is used realizing through virtual single-node technology data transmission interaction parallel approach processing. Finally, flight experiment carried out results show that method meets...

High-Resolution Wide-Swath (HRWS) is an important development direction of space-borne Synthetic Aperture Radar (SAR). The two-dimensional spatial variation the Doppler parameters most significant characteristic sliding spotlight SAR system under requirements HRWS. Therefore, compensation challenging problem faced in imaging HRWS situations. compensatory approach then proposed to address this paper. distribution for data working mode firstly analyzed, based on which a Spatial-Variant...

The Continuously Varying Pulse Repetition Interval (CVPRI) technique is an effective method to acquire Synthetic Aperture Radar (SAR) echo data with significant Range Cell Migration (RCM). non-uniformity of along the azimuth direction primary problem faced in imaging processing caused by CVPRI. This paper focused on reconstruction Non-Uniformly Sampled (NUS) signal based Then, a modified algorithm combined Non-Uniform Sinc Interpolation (NSI) proposed achieve NUS focusing. Simulations are...

To improve the phase-measuring profilometry measurement speed, phase-shifted fringes can be encoded into color channels. However, for colored objects, intensity of in each channel is affected by surface texture. Therefore, a method based on coding and sinusoidal correction proposed. First, two images are encoded. The red (R) blue (B) channels first image green (G) second used three-step phase-shifting process. Meanwhile, G coded R B corresponding solid colors. Two color-coded projected onto...

We propose an absolute phase retrieval method based on three phase-shifting amount codes (3-PSA-codes) to measure the colored object with one additional pattern. 3-PSA-codes adopt coding concept of 3-digit-codes, in which code elements consecutive periods are treated as a unique word for period. However, more effectively proposed method, each element is embedded into PSA domain and retrieved from difference. Fringe patterns wrapped artfully employed retrieval. Hence, first time, best our...

Traditional in-field self-calibration techniques for some multiple channel systems, whose volume and weights are limited, inefficient. A more simple calibration technique, employing only one assistant source in near-field transceiver channel, is investigated it's unnecessary to conduct complex feed circuits behind the antennas. Furthermore, method principle of minimum errors with weighting (NFW) proposed. It's a level compensation between sub-arrays based on proved fact that have stronger...

For the purpose of global mapping, absolute interferometric phase (AIP) determination without ground control points is one keytechniques in spaceborne synthetic aperture radar (InSAR) processing. In this paper, a novel AIP method proposed based on fusion datum acquired by ascending and descending orbits. Firstly, influence error InSAR positioning analyzed. The horizontal shift directions introduced bias for ascending- orbit data are different. Then, can be determined minimization height...

Multi-channel phased array radar has the following advantages: detection multiple target, far work distance, anti-interference capability, and sensitive response, etc. The squint SAR (Synthetic Aperture Radar) is an effective means of in complex background all-weather all-day. needs consistency amplitude phase. design system parameter should focus on problem spatial variability properties PRF resolution design. This paper introduces composition analysis multi-channel radar, phase,...

Augmented reality (AR) technology has incorporated refined sensory perception into complex neurosurgical procedures in recent years.Practitioners used head mounted displays to access neuro-navigation surgical preparations pursuit of maximum safety.This paper was aimed converge a target reference from imagery an actual object by using Microsoft HoloLens.Reference registration is achieved through scanning that utilizes phase detection sensor module assign distinctive digital points.The...

Passive radar has become a research hotpot in recent years owing to the many distinctive advantages on it, such as lightweight, radio silence and low cost. However, it targets detection performance depends largely choice of radiation source. Due excellent global coverage, Global Navigation Satellite System (GNSS) becomes an ideal illuminator opportunity for air target detection. Through Doppler frequency modulation rate estimation (DFMR) based Fraction Fourier Transform (FrFT),...

Smart community, as a key component of Internet Things (IoT), is experiencing fast booming, which significantly enhances residents' quality life. Using fog computing to establish smart community an effective way further develop and sustainable cities due the reduction bandwidth consumption latency. However, privacy issues are emerging because continuous attacks putting sensitive information under great threats. Motivated by this, we propose differentially private model with personalized...