Fig 1

Configuration of the basic FDA"

Fig 2

$\bm\psi $ changes as a function of the array elements"

Fig 3

MUSIC spectrum $\mathit{\boldsymbol{(\theta _0 = 0^\circ, R_0 = 500\; {{\rm{k}}}{{\rm{m}}})}}$"

Fig 4

Configuration of CSB sin-FDA"

Fig 5

Beampattern of the three receiving processing architectures"

Fig 6

Beampattern of PA based on MVDR $\mathit{\boldsymbol{(N = 20)}}$"

Fig 7

Beampattern of MVDR based on FDA-BFF $\mathit{\boldsymbol{(N = 20)}}$"

Fig 8

Beampattern of MVDR based on FDA-MIMO $\mathit{\boldsymbol{(N = 10)}}$"

Fig 9

Beampattern of MVDR based on FDA-MIMO $\mathit{\boldsymbol{(N = 20)}}$"

Fig 10

Comparison of FDA transmit beampatterns"

Fig 11

Beampattern of MVDR based on FDA-BFF"

Fig 12

Beampattern of TS-MVDR based on FDA-MIMO"

Fig 13

Beampattern of proposed method based on CSB sin-FDA"

Fig 14

Beampattern of TS-MVDR based on FDA-MIMO with a pointing error"

Fig 15

Beampattern of proposed method based on CSB sin-FDA with a pointing"

Fig 16

Beampattern of TS-MVDR based on FDA-MIMO with an insufficient snapshot number"

Fig 17

Beampattern of proposed method based on CSB sin-FDA with an insufficient snapshot number"

Fig 18

SINR comparison between the four architectures at different interferences' angle"

Fig 19

SINR comparison between the four architectures with an insufficient snapshot number"

Fig 20

Eigenvalue distribution of different covariance matrices"

Table 1

operation time of the two algorithms  s"