Patent ID: 11906646
Assignee: SOUTHEAST UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 4:
5. The method for estimating the air propagation delay of the direct wave according to claim 4, wherein the method for determining the position of the reflection point by the midpoint of the common perpendicular line segment between the ray of the departure angle of the reflected wave and the ray of the arrival angle in step 3 is as follows: obtain the departure angle (φt,1, θt,1) of the reflected wave and the coordinate rr of the receiving end according to step 2; then obtain the common perpendicular line segment of the transmitting ray and receiving ray of the reflected wave; finally obtain the midpoint of the common perpendicular line segment, which is recorded as rsc, and is the estimated reflection point of the reflected wave.