PUMA: An improved realization of MODE for DOA estimation

comparison of the MODE and PUMA algorithms

C. Qian, L. Huang, M. Cao, H. C. So and J. Xie, "PUMA: An improved realization of MODE for DOA estimation," IEEE Transactions on Aerospace and Electronic Systems, vol. 53, no. 5, pp. 2128-2139, 2017.
The code compares two algorithms, i.e., MODE and PUMA, for DOA estimation. It shows that PUMA and MODE are two different solvers for the same optimization problem, but PUMA works much better than MODE. MODE even does not work for a single-source DOA.