Patent ID: 6166677
Filing Date: 2000-12-26
Classification: G01S

Abstract:
An image synthesis method using a plurality of radar waves from at least two reception antennas mounted at a predetermined distance from each other for receiving reflection waves of a radar wave emitted forward from an aircraft, wherein information items obtained from these plurality of antennas are image-synthesized so as to identify a position of a reflection object, the method comprising following four steps:in a first step, a distance from each of the reception antennas to an object or objects are calculated using one or more than one reflection waves caught by the reception antennas;in a second step, within an antenna beam azimuth, a reflection object position arc-shaped curve is calculated for each of the reception antennas as the center of the arc curve;in a third step, the reflection object position curves obtained within the antenna beam from the second step and the first step are plotted on common coordinates based on the reception antenna directions and a distance between the reception antennas;in a fourth step, actual position of the reflection object (or reflection objects) is (are) identified as intersecting points of the reflection object position curves on the synthesized image obtained by step 3.