A Method to Calculate Complex Cramér-Rao Bound for Line Spectrum Estimation After Compression with Multiple Measurement Vectors

A method to calculate the complex Fisher information matrix (FIM) and the Cramer-Rao bound (CRB) is proposed for line spectrum estimation (LSE) problem after compression with multiple measurement vectors (MMVs). The detailed theoretic calculation process is presented in the text. Finally, numerical results are conducted to demonstrate the accuracy of CRB as the performance criterion.