Definition

mode

Definition of three-order cumulant

Three-order cumulant

Diagonal of three-order cumulant

Definition 1

E { x ( n ) x ( n + τ 1 ) x ( n + τ 2 ) }

0

0

Definition 2

E { x ( n ) x ( n + τ 1 ) x ( n + τ 2 ) }

A 1 A 2 A 3 [ exp j ( ω 1 τ 1 + ω 2 τ 2 ) + exp j ( ω 2 τ 1 + ω 1 τ 2 ) ]

2 A 1 A 2 A 3 [ exp j ( ω 3 τ ) ]

Definition 3

E { x ( n ) x ( n + τ 1 ) x ( n + τ 2 ) }

A 1 A 2 A 3 [ exp j ( ω 3 τ 1 ω 1 τ 2 ) + exp j ( ω 3 τ 1 ω 2 τ 2 ) ]

A 1 A 2 A 3 [ exp j ( ω 2 τ ) + exp j ( ω 1 τ ) ]