Structural analysis accuracy depends on the correct selection of ground motion time histories. Given their significant impact, a thorough understanding of the characteristics of these time histories is essential for precise analyses. Several factors influence the structure of these time histories, with proximity to the fault being one of the most important. Earthquakes are generally categorized into two groups: near-fault and far-fault, with near-fault earthquakes typically exhibiting distinctive features in their velocity records, including prominent pulses with long periods and significant amplitudes. These pulses, generated by the fault rupture mechanism, can considerably affect seismic response and structural damage. Previous research has established a link between pulse-like ground motions, the directional effects of fault rupture, and fault slip impact. These pulses, especially when fault slip propagates toward an area, appear as strong pulses in earthquake velocity records. Additionally, due to significant differences in spectral acceleration values for pulse-like ground motions, it is necessary to accurately calculate these values and incorporate them into structural dynamic analyses. In this study, using the wavelet transform method, precise pulse identification was conducted for large ground motions in Iran, and eight earthquakes were definitively identified as pulse-like. The influence of near-fault ground motion component rotation on spectral acceleration values was also thoroughly examined. The results showed significant differences in these parameter values, and in dynamic structural analyses, these values should be calculated and used to account for ground motion's varying angular effects. This study emphasizes the importance of identifying pulse-like earthquakes in different regions to develop specific seismic design regulations for near-fault areas, thereby improving structural performance against such ground motions.