PD Radar LFM Waveform Coherent Integration with Keystone Transform Correction for Range Cell Migration

This MATLAB source code demonstrates the application of Keystone Transform to correct range cell migration in PD radar LFM waveform coherent integration. In radar signal processing, PD radar with LFM waveforms is a commonly used signal mode that enhances signal-to-noise ratio through coherent integration. However, range cell migration in mid-range units causes inaccuracies during coherent accumulation, requiring Keystone Transform correction. The implementation includes algorithms for: - Linear Frequency Modulated (LFM) waveform generation and pulse compression - Range-Doppler processing for coherent integration - Keystone Transform implementation to compensate for range migration effects - Performance validation through simulation and experimental data Key MATLAB functions employed: - Signal generation using chirp() function for LFM waveforms - Fast Fourier Transform (FFT) implementations for range and Doppler processing - Interpolation algorithms for Keystone Transform correction - Cross-correlation techniques for accuracy validation This correction method enables more accurate PD radar LFM waveform coherent integration results, ultimately improving radar system performance through enhanced target detection and parameter estimation capabilities.