Abstract：In order to improve side-lobe performance, traditional filter banks have to increase order number. In this paper Generalized Side-Lobe Canceller (GSC) is introduced to cancel strong jamming signals from side-lobes of filter banks, which can place zeros at stop band adaptively. The matrix form of this adaptive algorithm is provided, based on LMS algorithm. The length of the canceller coefficients is confined so the canceller just cancels strong jamming signals, with little influence on pass band signals. This method realizes the function of high-order filter banks through low-order filter banks and especially suited for weak signal detection. The simulation analysis indicates that it reduces computation quantity relative to high-order filter banks but maintains the same performance.
2011, Vol. 33 
