Method and apparatus for determining at least one characteristic of a signal propagation path

An apparatus for determining at least one characteristic of a propagation path between a transmitter and a receiver in a communication environment, comprising:

• at least one processor and at least one memory for storing programs and instructions that, when executed by the at least one processor, causes the apparatus to perform operations comprising:
• receiving a plurality of signals transmitted from the transmitter, where each of the plurality of signals has a different propagation path;
• determining a motion of an antenna of the receiver;
• generating a plurality of phasors sequences, where each phasor sequence represents a hypothesis based on antenna motion and a direction of arrival estimate for each of the plurality of received signals;
• compensating the plurality of received signals, a plurality of local signals or correlation results from correlating the plurality of received signals with the local signals using the plurality of phasor sequences based on the plurality of hypotheses regarding the receiver motion and the direction of arrival estimate to generate a plurality of compensated correlation results;
• determining a preferred hypothesis in the plurality of hypotheses for each received signal that optimizes each correlation result in the plurality of compensated correlation results;
• identifying a direction of arrival for each of the plurality of received signals using the determined preferred hypothesis;
• determining, based on the identified direction of arrival, a propagation path for each of the plurality of received signals;
• and
• determining at least one characteristic of a propagation path for at least one of the plurality of received signals based on the identified direction of arrival of the propagation path and information regarding the communication environment of the receiver.