| 摘要 |
PROBLEM TO BE SOLVED: To provide a direction finder capable of precisely detecting an incident angle of an incident signal by setting a proper Lagrange multiplier. ! SOLUTION: When sum of a DOA term and a sparse term does not converge, a convergence determination section 6 gives an instruction to a Lagrange multiplier update section 5 to update a Lagrange multiplier λ. The Lagrange multiplier update section 5 updates the Lagrange multiplier λ by using difference between the latest DOA term calculated by a DOA term calculation section 2 and a previously measured noise energy Enoise. ! COPYRIGHT: (C)2015,JPO&INPIT |
