Tatsuyuki Hanada

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This paper presents Bread Board Model (BBM) of homodyne BPSK (Binary Phase Shift Keying) receiver with an optical phase locked loop and a Doppler shifts compensator for inter satellite optical communication link. 2.5Gbps BPSK data has been demodulated with sensitivity of −49.1dBm at bit error rate of 1e-6 under initial frequency offset of(More)
Laser-based optical inter-satellite communication equipment enables large capacity communication, which is essential for future observation satellites that handle huge amounts of data. One of the key technologies for optical inter-satellite communication equipment is the rapid, highly accurate acquisition and tracking of the corresponding satellite.(More)
Optical free space communication is a key element of the future data-relay satellite system which supports space activities, especially in the fields of earth observation satellite programmes and manned flight missions. Aiming to realization of small and light-weight onboard optical terminals, JAXA launched research and development activities in 2008. The(More)
Laser/LIDAR remote sensing technologies can satisfy a variety of measurement and operational requirements. Specifically lasers for LIDAR and its applications. These measurement techniques are finding uses in several earth science areas, including trace gases, water vapor, aerosols and clouds, wind speed and directions, oceanic mixed layer depth, ice sheet,(More)
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