Fig. 2From: Approximate equiangular tight frames for compressed sensing and CDMA applicationsCorrelation distribution of frame vectors of 64×128 (left) and 96×128 (right) frames constructed with [26], [30] and proposed method. The optimal lowest bound (Welch bound) for these dimensions is μ opt=0.0887 and μ opt=0.0512, respectivelyBack to article page