Traffic radar super-resolution angle estimation method based on multi-pulse synthesis snapshot

The invention discloses a traffic radar super-resolution angle estimation method based on multi-pulse synthesis snapshot, and the method comprises the steps: selecting L pulses through a sliding window with the size of L to form a group, forming a plurality of groups of pulses through moving the sliding window, carrying out the FFT of each pulse group to form a plurality of one-dimensional spectrums, taking the spectrum peaks corresponding to the one-dimensional spectrums to form multi-snapshot data, and carrying out the calculation of the multi-snapshot data. According to the method, the covariance matrix can be estimated under the condition that the array aperture is not lost; and the PR technology is introduced, and the data is subjected to resampling angle measurement, so that the correlation of adjacent snapshot data can be reduced, and the DOA estimation accuracy can be improved. 本发明公开一种基于多脉冲合成快拍的交通雷达超分辨角度估计方法，以大小为L的滑窗选择L个脉冲构成一组，通过移动滑窗形成多组脉冲，对每个脉冲组做FFT形成多个一维谱，取这些一维谱对应的谱峰就构成了多快拍数据,进而进行角度估计，该方法能够在不损失阵列孔径的