Uniform LFM Reconstruction From Non-uniform Data

The multi-channel sampling technique is often exploited nowadays, as it can largely reduce the sampling rate. However, it may suffer from non-uniform sampling. If this data was directly considered to be the input of the signal processors, the processing performance would be seriously degraded, as the ghost targets would be introduced. In this paper, we first introduce a method to recover the uniform data based on the non-uniform sampled data. Considering each multichannel data, it is uniform sampled data, combining the spectrum of each channel data yields the spectrum of non-uniform signal. At last, the non-uniform data, i.e. linear frequency modulation (LFM) signal, is simulated. Compared to the spectrum of uniform data, the uniform data can be well reconstructed based on the non-uniform data.