Scalable space frequency adaptive processing (SFAP)

A method for interference mitigation, comprising:

• receiving signal information via an antenna array;
• performing, by a signal processor, a wavelet transform with N transform domain bins, on the signal information;
• determining, by the signal processor, N covariance matrices each corresponding to a respective one of the N transform domain bins;
• grouping covariance matrices from the N covariance matrices into groups of M covariance matrices, each group corresponding to a respective group of M adjacent transform domain bins from the N transform domain bins;
• producing, by the signal processor, a combined spatial covariance matrix for each group of M covariance matrices, by combining covariance matrices within the respective group of M covariance matrices;
• and
• calculating, by the signal processor, spatial weights from each of the spatial covariance matrices, for anti-jamming or interference mitigation processing, to control the antenna array.

A method for interference mitigation, comprising:

• receiving signal information via an antenna array;
• performing, by a signal processor, a fast Fourier transform (FFT) with N transform domain bins, on the signal information;
• determining, by the signal processor, N covariance matrices each corresponding to a respective one of the N transform domain bins;
• grouping covariance matrices from the N covariance matrices into groups of M covariance matrices, each group corresponding to a respective group of M adjacent transform domain bins from the N transform domain bins;
• producing, by the signal processor, a combined spatial covariance matrix for each group of M covariance matrices, by combining covariance matrices within the respective group of M covariance matrices;
• and
• calculating, by the signal processor, spatial weights from each of the spatial covariance matrices, for anti-jamming or interference mitigation processing, to control the antenna array.