Patent ID: 8432310
Filing Date: 2013-04-30
Classification: G01S

Abstract:
1. A positioning receiver for implementation on-board a vehicle, said positioning receiver comprising: a receiving unit, the receiving unit being configured for receiving a plurality of positioning signals including direct path positioning signals and at least one reflected multipath positioning signal; and a processor, the processor being connected to the receiving unit, the processor being configured for: receiving Radio Frequency (RF) inputs from the receiving unit, said RF inputs including the received signals; separating the direct path positioning signals from the at least one reflected multipath positioning signal; generating positional data for the vehicle based upon the direct path positioning signals; determining a time-of-flight value for at least one of the direct path positioning signals; determining a time-of-flight value for the at least one reflected multipath positioning signal; determining a difference between the time-of-flight value of the at least one direct path positioning signal and the time-of-flight value of the at least one reflected multipath positioning signal; and calculating the height above ground of the vehicle based upon the difference between the time-of-flight value of the at least one direct path positioning signal and the time-of-flight value of the at least one reflected multipath positioning signal.