Digital Architectures for UWB Beamforming Using 2D IIR Spatio-Temporal Frequency-Planar Filters

Figure 21

Input and output Gaussian signals in time domain.

(a)   Input signal of three 2D Gaussian pulse functions at 𝑁₁=31 with combination of three different space-time DOA signals

(b) Output signal of 2D 2nd-order filter at 𝑁₁=31

(c) Output signal of 2D 3rd-order filter at 𝑁₁=31

(d) Cross-correlated signal of input and output signal at 𝑁₁=31 for 2nd-order filter

(e) Cross-correlated signal of input and output signal at 𝑁₁=31 for 3rd-order filter