System and method for cued acquisition azimuth and elevation extent calculation using perspective projection

摘要

Methods are disclosed for obtaining a cued radar acquisition volume. The method employs uncertainties (i.e., errors) represented by a covariance, and a method of finding the minimum volume defined by range, azimuth, and elevation limits that enclose the covariance, and uses a perspective projection of the errors to provide an accurate calculation of the cued acquisition volume. The three-dimensional problem is first reduced to two dimensions by parallel projection onto the range-transverse and range-elevation planes. Then perspective projection of the two dimensional parallel projections is performed. The disclosed method reduces the complexity of three dimensional perspective projection by preceding perspective projection with parallel projection, which greatly simplifies the problem and allows a simple and easily calculated solution.

主权项

1. A method for generating a radar search volume enclosing a tracked target, the method comprising:
parallel projecting a three-dimensional covariance of the tracked target onto a range-transverse plane and a range-elevation plane to obtain two-dimensional covariances; determining, by a command and decision processor, an average elevation extent and average azimuth extent by perspective projecting the two-dimensional covariances; and generating the search volume using the average elevation extent and the average azimuth extent.