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GLOBECOM
2006
IEEE
15 years 5 months ago
Implementation of a Coded Modulation for Deep Space Optical Communications
— We present a field programmable gate array (FPGA) implementation of a turbo-like decoder for a serially concatenated pulse-position modulation (SCPPM) code. NASA developed thi...
Michael K. Cheng, Bruce E. Moision, Jon Hamkins, M...
ISMVL
2002
IEEE
120views Hardware» more  ISMVL 2002»
15 years 4 months ago
An Impact of Introducing Multi-Level Signals to a Bandpass Cascaded Delta-Sigma Modulator
An impact of introducing multi-level signals to a bandpass delta-sigma modulator (DSM), which is of particular interest for wireless communications applications, has been investig...
Takao Waho, Shin-ya Kobayashi, Koji Matsuura
MVA
1992
15 years 1 months ago
Contour Map Reconstruction via Multi-Module Parallel Computational Scheme
Module-1 :Computation of gradient directions. Reconstruction of a set of imperfect contour curves which is extracted :Assignment of discreteheight to contourcurves. from a topograp...
Miyuki Kawashima, Ryuji Tokunaga, Yuzo Hirai
TEI
2009
ACM
78views Hardware» more  TEI 2009»
15 years 6 months ago
A short guide to modulated light
Many types of tangible interaction systems, such as interactive surfaces and gesture-based interfaces, are based on various kinds of optical tracking, using infrared illuminators ...
Florian Echtler, Tobias Sielhorst, Manuel Huber, G...
HAPTICS
2009
IEEE
15 years 6 months ago
Passive set-position modulation approach for haptics with slow, variable, and asynchronous update
We consider the following problem in haptics: information update from the virtual world is slow w.r.t. the local servo-loop rate of the haptic device, and the information transmis...
Dongjun Lee, Ke Huang