| 摘要 |
<p>A signal processor (10) which operates on an incoming signal to separate the signal into locally compact wavelets in the time frequency domain includes a memory (26) coupled to a bank (30) of band pass filters for separating an incoming signal into a plurality of signals each occupying a respective one of a corresponding plurality of 34 channels (30a-30hh). A bank (40) of range compressors, each having two stages (42 min ,42 sec ) of automatic gain control and a half-wave rectifier (49) scales the filtered signals from the plurality of channels (30a-30hh) by an estimate of background noise in the filter data. A coincident detector (50) fed by the plurality of scaled signals integrates coherent components of the filtered scaled signals to provide a single output signal for a user device (60). <IMAGE></p> |
