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A novel spatial diversity receiver for deep-space optical communication links is proposed. Using digital micromirror devices, the receiver optically computes linear projections of the turbulence-degraded focal-plane signal distribution onto an orthogonal binary basis. By using such projections, an estimate of the signal distribution is computed and updated adaptively to follow the time variations...
One-year spatial diversity characteristics on terrestrial path under influence of atmospheric multipath propagation are presented. Received signal level fluctuations are measured at different heights on the receiver site of the 50 km long terrestrial path operating in the 10 GHz band. Five receivers are installed on the mast in the heights of 51.5, 61.1, 90.0, 119.9 and 145.5 m above the ground. Multipath...
We present measured gains of spatial and angular diversity receivers for fixed narrowband wireless links at 2.4 GHz, in scenarios where indoor service is provided from an outdoor base station. We tested the performance of maximal ratio (MRC), equal gain (EGC) and selection (SC) combiners, and compared them to angular selection diversity using directive antennas. Spatial fading statistics were found...
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