1) Odor memory and recognition. 2) Background elimination (one known + unknown thoroughly mixed) 3) Component separation. (few known odors mixed) 4) Odor separation (turbulent unknowns)
covi = covmin (ct/cthresh,t) (1 or fit) + covmin (cb/cthresh,b) (1 or fib)
ci = (cthresh /fit )(coviu/covmin)
t= target , b=background, u= unknown, receptors i=1 to 1000.
minimum coverage for threshold.