What is DPE (direct position estimation)?

Initially, a receiver executing DPE registers the position straightforwardly from the inspected signal, as inverse to conventional receiver in which range estimates are required before solving for the user’s position. Therefore, conventional receivers are referred to as two-steps receivers and DPE as one-step in thesequel. DPE is a well-established situating strategy where time-delay and Doppler shifts to the noticeable satellites are assessed to solve for a geometrical issue to process the receiver’s position. construes position straightforwardly from the tested information without intermediate steps.