Patent ID: 11879986
Assignee: ZHEJIANG UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. The three-dimensional co-prime cubic array direction-of-arrival estimation method based on a cross-correlation tensor according to claim 1, wherein in step (7), a process of obtaining a direction-of-arrival estimation result by three-dimensional spatial spectrum search specifically comprises: fixing a value of {tilde over (φ)} at 0°, gradually increasing {tilde over (θ)} to 90° from −90° at an interval of 0.1°, increasing the {tilde over (θ)} to 0.1° from 0°, increasing the θ to 90° from −90° at an interval of 0.1° once again, and repeating this process until the {tilde over (φ)} is increased to 180°, calculating a corresponding ({tilde over (θ)},{tilde over (φ)}) in each two-dimensional direction-of-arrival of ({tilde over (θ)},{tilde over (φ)}) so as to construct a three-dimensional spatial spectrum on a two-dimensional direction-of-arrival plane; searching peak values of the three-dimensional spatial spectrum ({tilde over (θ)},{tilde over (φ)}) in the two-dimensional direction-of-arrival plane, permutating response values corresponding to these peak values in a descending order, and taking two-dimensional angle values corresponding to first K spectral peaks as the direction-of-arrival estimation result of a corresponding signal source.