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The peak side lobe height is -32 dB.
These rectangularly shaded ULAs set the practical upper limit on side lobe height.
Since the peak side lobe height in a beam pattern is inversely proportional to the beamformer's ability to reject noise and interference and detect weak signals, a small peak side lobe height is desirable.
The side lobe height of a full ULA is insensitive to the total aperture, but the side lobe height of the CSA beam pattern may be decreased by increasing the aperture, as we discuss in more detail below.
The best shading for a situation depends on whether side lobe height or number of sensors is the primary consideration.
Thus, it is important to design a weight vector that has a beam pattern with the desired main lobe width and side lobe height.
Similar(43)
The main lobe width and side lobe heights are the two important beam pattern characteristics.
The array shading (or tapering) that multiplies each sensor's measurement establishes trade-offs between the main lobe width and the side lobe heights.
The side lobe with height -64 dB is at u p =upsl·232/18.
Solving the equation u p =f p,Q) for p gives the index of the side lobe with height -64 dB which is 7. Solving (11) with p=7 gives c=8.5.
Find the index p of the side lobe with height 2SL dB using the equation u p =f p,Q), where f p,Q) is the expression for the p th side lobe location and f p,Q) is a function of p and the number of sensors in the array Q.
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