A Multi-Frequency Sampling Method for the Inverse Source Problems with Sparse Measurements
A Multi-Frequency Sampling Method for the Inverse Source Problems with Sparse Measurements
We consider the inverse source problems with multi-frequency sparse near field measurements.In contrast to the existing near field operator based on the integral over the space variable, a multi-frequency near field operator is introduced based on the integral over the frequency variable.A factorization of this multi-frequency near field operator is …