| 摘要 |
<p>Noise reduction is achieved in a system without the introduction of noticeable artifacts in the displayed image by using (1) a non-ringing, non-aliasing, localized transfer, octave-band spectrum analyzer (200) to derive respective subspectra signals (LO ..... LN), (2) separate coring circuits (202-1 ......... 202N) for coring one or more of the analyzed subspectra signals, and (3) a synthesizer (206) employing one or more non-ringing, non-aliasing filters (204-1 ...... 204N) for deriving an output image-representing signal (IR) from all of the subspectra signals.</p> |
