Fig. 4

The output SNR of ICFWD, CICFWD, ACWD, KFWD and WD for the bi-component case. a The k-amplitude distribution of RT-based ICFWD with \({\mathbf {A}}_1=(3.5,-2.5;1.2,-0.5714)\) and \({\mathbf {A}}=(0.05,1.1667;0,20)\). b The k-amplitude distribution of RT-based CICFWD with \({\mathbf {A}}_1=(0.4,1;-0.2,2)\), \({\mathbf {A}}_2=(3.2,-2;-1.1,1)\) and \({\mathbf {A}}=(-0.5,1.6;0,-2)\). c The k-amplitude distribution of RT-based ACWD with \({\mathbf {A}}_1=(2.3333,-1.3889;1,-0.1667)\). d The k-amplitude distribution of RT-based KFWD with \({\mathbf {A}}=(0,0.9;-1.1111,1)\). e The k-amplitude distribution of RT-based WD