Stop-band response weighting passband total response error constraint spatial domain matrix filter design method
A filter design and error constraint technology, applied in impedance networks, adaptive networks, electrical components, etc., can solve problems such as complex calculations, inability to directly give optimal solutions, and unfavorable real-time spatial matrix filter design.
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[0065] The specific implementation examples of the present invention are described in detail below in conjunction with the scheme.
[0066] The iterative algorithm based on the matrix filter stopband response envelope weighting criterion is as follows:
[0067] Step 1: k=0, discretize the detection space to obtain V P , V S , Θ S1 , Θ S2 . By ξ, calculate the initial optimal spatial domain matrix filter Set the response ratio of left stop band and right stop band γ(θ s ), let w 0 (θ s )=1;
[0068] Step 2: Calculate |E k (θ s )|=|H k a(θ s )|, s=1,...,S. Seeking|E k (θ s )| local maximum point, get the abscissa of the local maximum and its corresponding ordinate
[0069] Step 3: Take advantage of and The extension of the line connecting two points, calculated on the abscissa θ 1 The value z at 1 , set (θ 1 ,max(|E k (θ 1 )|,z 1 )) is the starting point of envelope weighting.
[0070] Step 4: Leverage and The extension of the line connecting ...
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