Abstract: Sparse arrays designed based on fourth-order difference co-array (DCA) can achieve significantly higher uniform degrees-of-freedom (uDOFs). However, most existing fourth-order sparse arrays ...
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Abstract: Recently, non-conventional odd-order statistics, especially the third-order cumulants (TOCs), have been introduced to direction-of-arrival (DOA) estimation based on third-order nested array ...
# Given an array of positive integers arr, return the sum of all possible odd-length subarrays of arr. # A subarray is a contiguous subsequence of the array.
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