Radar detection method, mainly for airborne radars implementing an obstacle-detection and avoidance function

摘要

The method involves demodulating a signal with another signal to form a resulting signal comprising sine curves with respective frequencies. The resulting signal is sampled, and fast Fourier transformation is performed on the resulting signal for the duration of the emission ramp to form the resulting spectrum. Lines in the frequencies are detected in the resulting spectrum. Vector sum of the lines is performed after the re-phasing of the lines with respect to one another. Radar detection is performed by comparing the modulus of the vector sum with a preset threshold.