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Table 1 Complexity of the three single-shot techniques with N a =16 receiving antenna branches

From: Low-complexity DOA estimation from short data snapshots for ULA systems using the annihilating filter technique

  K=2 K=4
  R=100 R=500 R=100 R=500
Bayesian method 35.32×106 8.83×108 7.9200×1011 4.95×1014
DML 94.42×106 2.3605×109 1.1244×1012 7.0275 ×1014
AF-based 2484 2484 7464 7464