Linear Frequency Modulated Signal: A Commonly Used Radar Waveform

In linear frequency modulation radar systems, electromagnetic signals utilizing frequency modulation are a prevalent radar waveform type. When radar detects targets and receives reflected echo signals, the waveform experiences frequency shifts influenced by the Doppler effect. To extract target velocity information, we employ source code simulation techniques to replicate radar echo signals. The simulation process can incorporate various noise sources and interference patterns, enhancing the realism and reliability of results. Implementation typically involves generating LFM pulses using chirp functions, applying Doppler shift calculations based on relative velocity, and adding Gaussian noise models. Furthermore, in practical LFM radar applications, factors such as signal transmission loss and amplitude attenuation of reflected signals must be considered. For accurate radar detection, comprehensive consideration of these elements is essential, alongside continuous optimization of simulation algorithms through parameter tuning and signal processing enhancements like matched filtering and Fourier analysis.