Array processing is signal processing of the outputs of an array of sensors to:

• Enhance the signal-to-interference-plus-noise ratio (SINR) compared to that of a single sensor using conventional or adaptive beamforming.
• Determine the number of emitting sources, the locations of these sources, their waveforms, and other signal parameters.
• Track multiple moving sources.

References

[1] D. H. Johnson and D. E. Dudgeon, "Array Signal Processing", Prentice Hall, 1993.

[2] H. L. Van Trees, "Optimum Array Processing", Wiley, New York, 2002.

[3] H. Krim, M. Viberg, "Two Decades of Array Signal Processing Research", IEEE Signal Processing Magazine, pp. 67 - 94, July 1996 http://www.vissta.ncsu.edu/publications/ahk/spm1996.pdf

[4] M. C. Sullivan, "Practical Array Processing," McGraw-Hill, 2009.