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Intensity values, which are registered by a terrestrial laser scanner system (TLS) for each point of a 3D point cloud in addition to its coordinates, are affected by the characteristic of the measured...
Radiometric correction (RC) of the airborne Light Detection And Ranging (LiDAR) intensity data has been studied in the last few years. The physical model of the RC relies on the use of the laser range...
We describe a simple and scalable WDM/TDMA PON system that uses spectral slicing and FEC in burst-mode upstream transmissions. The sensitivity was improved to -31.5 dB at a sliced bandwidth of 400 GHz...
Soft-decision forward error correction provides high coding gain, but typically with high complexity. We present a soft-decision turbo product code with >11 dB NECG and reasonable complexity in a 40-n...
We propose an alternative method to design diffractive lenses free of spherical aberration for monochromatic light. Our method allows us to design diffractive lenses with the diffraction structure rec...
The concatenation of LDPC and RS codes has been demonstrated using a real-time FPGA prototype.A net coding gain of 9.0dB for 31.3-Gb/s was achieved with 20.5% redundancy for an input BER of 10 -2 .
The laser diode (LD) is a light source characterized by small size, light weight and high performance. Osaka University has been actively conducting research and development to precisely collect and d...
We report a high average power and high pulse energy diode-pumped Nd:glass master oscillator power amplifier system that is consisted of a thermally-edge-controlled zigzag slab amplifier and stimulate...
Effect of FFE and FEC to enhance the data rate of RSOA was investigated. 4.75Gbit/s was achieved by 0.6GHz RSOA using 4-tap FFE and ~14% FEC.
We extended a pilot symbol frequency offset estimation scheme and applied it in combination with a pilot subcarrier compensator. Optimum system sensitivity was found up to few 100MHz frequency offset.
We introduce the novel parallel-aligned liquid crystal wavefront corrector (LC WFC) with 1920*480 pixels designed to operate at phase-only mode. The optical characteristics of the LC WFC were measured...
The main goal of this thesis was a comprehensive assessment of the condition of the vision system following cataract surgery and implantation of posterior chamber artificial lens and assessment of the...

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