Fast transversal multi-input system

摘要

Multiple input single output (MISO) systems and processes are presented that can adaptively equalize multiple signals to produce an output. In some examples, the MISO systems can include a fast transversal recursive least square (RLS) algorithm to produce the output. Fast transversal RLS algorithms can be less complex than other RLS algorithms. In some examples, the fast transversal RLS algorithm may be optimized to have no division operations. The MISO system may have two or more inputs.

主权项

1. An apparatus comprising:
a circuit including:
a first input to receive a first signal;a second input to receive a second signal, the second input different and distinct from the first input;a first filter circuit adapted to determine first weighting coefficients and second weighting coefficients based on the first signal, the second signal, and an error signal, and a recursive least square (RLS) process;a second filter circuit adapted to modify the first signal via the first weighting coefficients to produce a first filtered signal, and modify the second signal via the second weighting coefficients to produce a second filtered signal;a first combiner circuit adapted to combine the first filtered signal and the second filtered signal to produce a combined signal;a reference signal generator circuit configured to generate a reference signal based on a bit sequence;a second combiner circuit adapted to combine the reference signal and the combined signal to produce the error signal; andan output to provide the combined signal.