Comparing Multistatic with Monostatic Super-Resolution Array Processing Techniques: Detection of Random Targets

Conventional MUSIC (multiple signal classification) method, which is a well-known super-resolution technique that employs a monostatic configuration, degrades severely when the multiple targets are deterministic because the rank of the covariance matrix collapses to the value of one regardless of the number of targets. FRM (frequency response matrix), with its multistatic configuration, is also a super-resolution technique and can complement MUSIC in the target randomness spectrum. This paper demonstrates that conventional MUSIC performs better for targets with strongly random (complex) amplitudes and FRM performs better for target with weakly random amplitudes (best for deterministic amplitudes)