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COMPENSATION LOW-FREQUENCY ERRORS IN TH-1 SATELLITE
Satellite photogrammetry Low-frequency errors Attitude determination system Exterior orientation elements Location accuracy Global coverage
2016/7/4
The topographic mapping products at 1:50,000 scale can be realized using satellite photogrammetry without ground control points (GCPs), which requires the high accuracy of exterior orientation element...
ANISOTROPIC SCATTERING SHADOW COMPENSATION METHOD FOR REMOTE SENSING IMAGE WITH CONSIDERATION OF TERRAIN
Soft Shadow Shadow Compensation Anisotropy Diffuse Solar Radiation Sky View Factor
2016/7/4
With the rapid development of sensor networks and earth observation technology, a large quantity of high resolution remote sensing data is available. However, the influence of shadow has become increa...
Compensation of multimode fiber dispersion using adaptive optics via convex optimization
Interference between the optimal technology multimode fiber optimize the adaptive optics system spatial light modulator impulse response
2015/8/10
We propose a provably optimal technique for minimizing inter-symbol interference (ISI) in multimode fiber (MMF) systems using adaptive optics via convex optimization. We use a spatial light modulator ...
Plant error compensation and jerk control for adaptive cruise control systems
System Identification Jerk Control Jerk Limitation Plant Error Error Compensation Plant Corruption Plant Model System ID ACC Adaptive Cruise Control
2015/1/20
Some problems of complex systems are internal to the system whereas other problems exist peripherally; two such problems will be explored in this thesis. First, is the issue of excessive jerk from ins...
The Atmospheric Compensation Component of a Landsat Land Surface Temperature (LST) Product: Assessment of Errors Expected for a North American Test Product
Landsat Surface Temperature Atmospheric Compensation
2014/12/4
The Landsat archive of thermal data (Landsats 4, 5 and 7) has gone through a rigorous calibration assessment and update. However, in order to be useful to most users the calibrated sensor reaching rad...
GEOMETRIC PROPERTIES OF A MECHANICAL FORWARD MOTION COMPENSATION SYSTEM CONTROLLED BY A PIEZOELECTRIC DRIVE
Digital airborne camera Forward Motion Compensation Piezoelectric drive Geometrical quality Compensation error Radial distortion
2014/4/28
Forward Motion Compensation (FMC) systems have been designed to ensure the radiometric quality of motion acquisition in airborne cameras. If the radiometric benefits of FMC have been acknowledged, wha...
Experimental Demonstration of XPM Compensation for CO-OFDM Systems with Periodic Dispersion Maps
Fiber optics communications Modulation Nonlinear Optics fibers.
2015/5/26
We experimentally demonstrate compensation of XPM for CO-OFDM systems operating in a periodic dispersion map using a low-bandwidth compensator. The nonlinear threshold was increased by 4 dB in a 22.5 ...
Compensation of Nonlinear Effects Using Digital Coherent Receivers
Coherent communications Fiber optics communications
2015/5/26
Nonlinearity compensation in digital coherent receivers is feasible from a fundamental point of view. This paper shows that it is possible to reduce the computational load required for nonlinearity co...
Performance Improvement by Fibre Nonlinearity Compensation in 112 Gb/s PM M-ary QAM
Coherent communications Nonlinear optics fibers
2015/5/26
We demonstrate that digital back-propagation offers up to six-fold enhancement in transmission reach when nonlinear fibre impairments are compensated in coherently-detected 112 Gb/s PM m-ary QAM, with...
Real-time IQ Imbalance Compensation for Coherent Optical OFDM Transmission
Fiber optics links and subsystems Coherent communications
2015/5/25
A FPGA-based receiver side (Rx) IQ imbalance compensation scheme for 10.7-Gb/s 16-QAM CO-OFDM transmission is demonstrated in real time. The compensation scheme performs better with the increase of OS...
120-Gb/s PDM 64-QAM transmission over 1,280 km using multi-staged nonlinear compensation in digital coherent receiver
120-Gb/s PDM 64-QAM transmission multi-staged nonlinear compensation digital coherent receiver
2015/5/21
We succeed in the long-haul (1,280km) transmission of a 120-Gb/s PDM 64-QAM signal. The transmission distance was extended from 800 km to 1,280 km by a multi-stage nonlinear compensation technique tha...
Complexity versus Performance Tradeoff for Fiber Nonlinearity Compensation Using Frequency-Shaped, Multi-Subband Backpropagation
optics, fibers Nonlinear optical signal processing Wave propagation
2015/5/21
We investigate the use of an enhanced backpropagation algorithm where subbanding and frequency-shaping by pre- and post-filters are used in the calculation of nonlinearity to enable larger step sizes ...
On the efficiency of RF-Pilot-based nonlinearity compensation for CO-OFDM
efficiency RF-Pilot-based nonlinearity compensation CO-OFDM
2015/5/21
We investigate the efficiency of RF-pilot based phase noise compensation for mitigation of nonlinear impairments in CO-OFDM transmission. We show that the efficiency scales with the effective dispersi...
Pulsed Fiber-MOPA source operating at 1550 nm with pulse distortion pre-compensation
Pulsed Fiber-MOPA source operating pulse distortio pre-compensation
2015/5/20
In this paper we present a diode-seeded pulsed Fiber-MOPA source operating in the telecommunication band with pulse distortion pre-compensation using arbitrary shaped input pulses. 100 ns long flat-to...
Polarization-Insensitive Parametric Tunable Dispersion Compensation for Field Fiber Transmissions with Ultra-High-Definition Video Signals
Polarization-Insensitive Parametric Tunable Dispersion Compensation Ultra-High-Definition Video Signals
2015/5/15
We report a parametric TDC employing polarization diversity loop with a PM-HNLF.Stable transmissions under the dispersion-managed condition over 105-km field fiber are demonstrated using NRZ-OOK ultra...