Sector 1 Output

Sector 2 Output

Sector n Output

Sum

Sector 1 Input

Z11(u)

Z12(u)

Z1n(u)

X1(u)

Sector 2 Input

Z21(u)

Z22(u)

Z2n(u)

X2(u)

Sector n Input

Zn1(u)

Zn2(u)

Znn(u)

Xn(u)

Accompaniment

Y1(u)

Y2(u)

Yn(u)