A digital convertible radio optimizes signal-to-noise ratios by
substantially canceling undesired components of a plurality of input data
streams present in sector signals in a cellular network. The sector
output power is then scaled to optimize the total power at the sector
output ports. The input data streams are cross-correlated with each other
and with digital representations of the sector signals to produce a
plurality of cross-correlated signals. The plurality of cross-correlated
signals is combined to identify the undesired cross-correlated signals.
The portion of the undesired signal measurement representing the
correlation between the input signal streams are removed using the input
signal cross correlation and system transfer function determination. A
weighted vector adjustment module produces a plurality of complex
weighted vector values that are mixed with the plurality of input data
streams. Each weighted vector value is incrementally and sequentially
adjusted based, in part, on measured undesired power levels. The real and
imaginary components of the weighted vector value are updated with an
incremented or decremented value that produces the lowest measured
undesired power level.