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We consider the uplink of a time-slotted wireless communication system with a mobile user and a base station equipped with an antenna array of M elements. The space-time varying channel of the system is usually estimated using training sequence in each slot and refined by projecting it to the corresponding spatial signal subspace. However, this method does not work when the space-time channel matrix...
With the use of sequence stratigraphic research methods, we discuss Feicheng coalfield sedimentary system. The coal-bearing formation in research area is divided into three types, i.e. tidal flat depositional system, tidal flat (barrier)-lagoon depositional system and river controlled shallow water delta depositional system and division, identification, comparison and follow-up analysis of the system...
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