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Table 2 Computational complexity in terms of complex multiplications

From: Average effective subcarrier-domain sparse representation approach for target information estimation in CP-OFDM-based passive bistatic radar

Algorithm

Clutter suppression

Overcomplexity

AES-S-T

\({C } _{\text{T}\_ \text{SR} }= O \left( 4LJ_{\text{AES}\_ \text{S} }I_{\text{AES}\_ \text{S}} {W } _{\text{AES}\_\text{S} }\right)\)

\({C } _{\text{T}\_ \text{SR} }+{C } _{\text{T}\_\text{CAF} }\)

AES-S-C

\({C } _{\text{C}\_\text{SR} }= O \left( 4L{J } _{\text{AES}\_ \text{S} }{I } _{\text{AES}\_ \text{S} }{W } _{\text{AES}\_\text{S} }\right)\)

\({C } _{\text{C}\_ \text{SR} }+{C } _{\text{C}\_\text{CAF} }\)

AES

0

\(O\left( 4LJIW \right)\)