Most of the computer users with ocular aberrations such as myopia, hyperopia and other high order aberrations are subject to the problems of visual blurring. Conventional methods used to counter visual blurring include spectacles and contact lenses. In this paper, we introduce an image preprocessing method that is designed to counteract the visual blurring caused by the aberration of the eye. T...

Fiber-optic dispersion and its effect on optical transmission system are analyzed. The most commonly used dispersion compensation fiber (DCF) technology is studied in this article. Three schemes (pre-compensation, postcompensation, mix-compensation of dispersion compensation) of dispersion compensation with DCF are proposed. In this study, we propose three DCF compensation scheme, pre-compensat...

Dispersion compensation in optical fiber communication system is analyzed. Performance is analyzed at10 Gbps in optical communication system with different transmission distance. To analyze the different modulation formats for optical modulation system and the impact of dispersion compensators on the performance of efficient optical communication system. Q factor and BER is analyzed with respec...

Time division duplex multi-carrier code-division multiple-access (TDD/MC-CDMA) exploits the strong correlation between upand downlink channel conditions of the slowly timevarying channels. The TDD mode enables pre-compensation of the channel influence on the uplink signal already at the mobile station based on the channel estimation from the downlink signal. The aim of this paper is to carry ou...

An exploration in the competency of the optical multilevel Mapping Multiplexing Technique (MMT) system in tolerating to the impact of nonlinearities as Self Phase Modulation (SPM) during the presence of dispersion compensation methods. The existence of high energy pulses stimulates deterioration in the chirp compression process attained by SPM which introduces an upper power boundary limit. An ...

An angle trajectory tracking of a 3-DOF (Degree Of Freedom) pneumatic motion platform by the NI Compact RIO control system was investigated. In this study, the positions of moving platform are changed by extension or shortening of the three pneumatic cylinders. The response of pneumatic cylinder is relatively slow for motor actuator and can get a good single-axis trajectory control by tradition...

The biggest concern in the use of radio-over-fiber (ROF) links in wireless access is their limited dynamic range due to nonlinear distortion (NLD). In this paper, a higher order adaptive filter based nonlinearity compensation scheme is proposed. Pre-compensation is done for the downlink while post-compensation is done for the uplink to result in asymmetry with respect to complexity. This centra...

Nitric oxide (NO) has been implicated in the processes by which animals recover from peripheral vestibular damage ('vestibular compensation'). However, few data exist on the dose-response effects of systemic administration of the nitric oxide synthase (NOS) inhibitor, N(G)-nitro-L-arginine methyl ester (L-NAME), on the vestibular compensation process. The aim of this study was to investigate th...

Time division duplex multi-carrier code-division multiple-access (TDD/MC-CDMA) operates on the premise that there is a strong correlation between upand downlink channel conditions. When using TDD mode, the effects of the channel on the uplink signal can be pre-compensated at the mobile station, based on the channel estimation from the downlink frame. The aim of this paper is to carry out a perf...