A novel 2-D window for spectral estimation

A novel 2-D window can be easily generated by the McClellan transform of Tseng´s 1-D window. The transformed window has nearly circularly symmetric frequency response and preserves the features and flexibility of Tseng´s 1-D prototype window. It can independently control the pattern falloff rate, the sidelobe level, and the depth of a steerable wide dip. Examples of detecting multiple 2-D closely spaced sinusoids have demonstrated the superiority of this novel 2-D window.