One-step signal selective direct positioning algorithm of cyclostationary signals

The most common algorithms for signal selective position determination of radio signal emitters are based on selective estimation of a specified parameter such as direction of arrival (DOA) or time of arrival (TOA) of the signal. The estimated parameters are then used to determine the transmitter´s location. These positioning methods are known as two-step methods. A general problem in these positioning methods is how to ensure that parameters estimated in the different base station correspond to the same signal emitters. In this paper, we propose a one-step subspace-based algorithm for signal selective direct position determination of cyclostationary signals. This proposed algorithm for signal selective direct positioning determination of cyclostationary signals is based on frequency domain and it does not require any knowledge of the optimal time lag parameter which appear in the similar algorithms in time domain. The performance of the proposed algorithm is illustrated by the results of simulations.