초록 ▼

A simulator for simulating radar or sonar signals returned to an observation point from a three-dimensional object of non-uniform reflectivity. An imaginary three-dimensional object is defined spatially in the form of a series of three-dimensional regularly shaped elements. Each element has allocate

A simulator for simulating radar or sonar signals returned to an observation point from a three-dimensional object of non-uniform reflectivity. An imaginary three-dimensional object is defined spatially in the form of a series of three-dimensional regularly shaped elements. Each element has allocated to it a predetermined level of uniform reflectivity.The position of boundaries of the element along an imaginary radial line extending from the observation point are calculated and the reflectivity allocated to points on the line on each side of each of the boundary positions is calculated. A sequence of signals is then generated which is representative of the allocated reflectivities occurring along the length of the line.

대표청구항 ▼

A simulator for simulating radar or sonar signals returned to an observation point from a three-dimensional object of non-uniform reflectivity, comprising means for spatially defining an imaginary three-dimensional object relative to the observation point in the form of a plurality of three-dimensio

A simulator for simulating radar or sonar signals returned to an observation point from a three-dimensional object of non-uniform reflectivity, comprising means for spatially defining an imaginary three-dimensional object relative to the observation point in the form of a plurality of three-dimensional regularly shaped elements, means for allocating to each element a predetermined level of uniform reflectivity, means for calculating the positions of boundaries of the elements along an imaginary radial line extending from the observation point, means for determining the reflectivity allocated to points on the line on each side of each of the calculated boundary positions, and means for generating a sequence of signals representative of the allocated reflectivities occurring along the length of the line.