Fig. 2From: Robust compressive sensing of sparse signals: a reviewComparison of the ℓ 1 (black) norm, the Huber cost function with c=0.75 (magenta) and the Lorentzian norm with γ=1 (blue) and γ=0.1 (green) for the location estimation problem, with observation samples located in x={−1,0,1,10}Back to article page