Optimization Research on Radar Signal Processing Technology Based on MTI-MTD

Due to the continuous development of radar signal processing technology, the MTI-MTD (moving target detection) technology is deeply studied in this paper. This article introduces the principles and properties of MTI and MTD filter banks and analyzes their advantages in clutter suppression, signal-to-noise ratio improvement, and target velocity measurement. Therefore, a radar signal processing system based on MTI-MTD technology, including an acquisition, preprocessing, and target recognition module, is designed. First, the acquisition module receives the radar echo signal and performs analog-to-digital conversion. Second, the preprocessing module is responsible for some operations on the echo signal, such as MTI filtering and Keystone distance migration correction. Third, the target recognition module is responsible for MTD filtering of the preprocessed signal and uses the neural network model to classify and locate the target. Through the verification of three sets of experimental data, the effectiveness and feasibility of this method are high. In addition, we compare it with the traditional method. The experiment results show that the radar signal processing method based on MTI-MTD technology can detect moving targets at various distances, speeds, and signal-to-noise ratios. It improves the ability of radar signal processing technology to detect moving targets in clutter.