A system and method for transmitting a plurality of spread-spectrum signals
over a communications channel having fading. The plurality of
spread-spectrum signals are radiated by a plurality of antennas, with each
antenna preferably spaced by one-quarter wavelength. A plurality of
receiver antennas receive the plurality of spread-spectrum signals and a
plurality of fading spread-spectrum signals. Each receiver antenna is
coupled to a plurality of matched filters having a respective plurality of
impulse responses matched to the chip-sequence signals of the plurality of
spread-spectrum signals. A RAKE and space-diversity combiner combines, for
each respective chip-sequence signal, a respective plurality of detected
spread-spectrum signals and a respective multiplicity of
detected-multipath-spread-spectrum signals, to generate a plurality of
combined signals. The symbol amplitudes can be measured and erasure
decoding employed to improve performance.