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GLOBECOM
2006
IEEE
14 years 1 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»
14 years 13 days 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
13 years 8 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»
14 years 2 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
14 years 2 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