Vierinen, J., Lehtinen, M. and Orispää, M.
Sodankylä Geophysical Observatory, Sodankylä, Finland
We introduce a modulation principle that in theory performs better than traditional binary phase coding. This is done by allowing a baud to have a freely chosen amplitude and phase. In the case of a static target it is possible to find finite length transmissions that are very close to perfect. We also study the performance of the new modulation principles in the case of lag profile measurements used in incoherent scatter experiments and compare this to alternating codes.