Convergence analysis of null steering antenna utilizing power inversion algorithm

The convergence rate of the power inversion (PI) algorithm utilized in null steering antenna is of vital importance to handle interferences in efficient way. This paper presents the in-depth analysis of the factors affecting the convergence rate of null steering antenna utilizing power inversion algorithm. Apart from choosing optimum value of step size, factors like number of snapshots, signal structure, DOA of signals etc can also affect the convergence rate which can degrade the performance of null steering array to null the interference efficiently. Simulations show that the properly designed array with optimized parameters can achieves faster convergence and produces deeper nulls. By choosing optimum values of these parameters null steering antenna utilizing power inversion algorithm becomes more robust and efficient.