REVIEW THRESHOLD TECHNIQUES FOR WIDE-BAND RECEIVERS

RECEIVER designers generally appreciate the importance of signal-detec tion circuitry for a successful wideband system. Systems designed for wideband, high probability of intercept (POI) performance lose this ca pability if the threshold circuitry does not respond to the signal of interest. Similarly, high-speed digital processing capability is ineff ective when the threshold circuit exhibits a long shadow time. Current threshold-detection techniques offer many advantages and disadvantage s to receiver system designers, provided the techniques are well under stood.