Direction of Arrival Estimation for Broadband Linear Frequency Modulated Signals

In this paper, we investigate the direction of arrival (DOA) estimation problem for broadband linear frequency modulated (LFM) signals and introduce a novel approach called the TCT algorithm. This method employs sophisticated mathematical computations to significantly enhance DOA estimation accuracy. The algorithm implementation typically involves signal preprocessing stages including windowing and Fourier transform operations, followed by covariance matrix construction and eigenvalue decomposition for spatial spectrum estimation. We believe this research holds substantial reference value in current scientific investigations and promises to provide researchers in related fields with innovative approaches and methodologies. Additionally, we analyze the algorithm's advantages and limitations, proposing several enhancement suggestions to further improve its performance and applicability. Potential improvements may include incorporating adaptive thresholding techniques in peak detection and implementing parallel computing strategies for real-time processing optimization.