Accurate and efficient electromagnetic response for a sensor simulator

A system comprising:

• at least one processor configured to:
• receive target information for a target and sensor parameters for an electromagnetic sensor that are simulated in an environment with a ground plane;
• determine, based on the target information and the sensor parameters, electromagnetic rays interacting with the target, the electromagnetic rays having forward propagation paths to the target and backward propagation paths from the target;
• and
• model an electromagnetic response by approximating, based on determining the electromagnetic rays interacting with the target, electromagnetic energy reflected by the target alone or in combination with the ground plane,
• wherein the at least one processor is configured to determine the electromagnetic rays associated with the target by at least:
• determining a target image for the target that mirrors the target about the ground plane;
• determining an electromagnetic sensor image that mirrors the electromagnetic sensor about the ground plane;
• launching initial electromagnetic rays from the electromagnetic sensor at the target and the target image, the initial electromagnetic rays having the same spatial ray density relative to the target and the target image;
• performing ray tracing to determine reflected electromagnetic rays from the target and the target image;
• and
• evaluating, based on equivalent surface currents, scattered fields of the reflected electromagnetic rays received by the electromagnetic sensor and the electromagnetic sensor image.

A non-transitory computer-readable storage media comprising instructions that, when executed, cause at least one processor to:

• receive target information for a target and sensor parameters for an electromagnetic sensor that are simulated in an environment with a ground plane;
• determine, based on the target information and the sensor parameters, electromagnetic rays interacting with the target, the electromagnetic rays having forward propagation paths to the target and backward propagation paths from the target;
• and
• model an electromagnetic response by approximating, based on determining the electromagnetic rays interacting with the target, electromagnetic energy reflected by the target alone or in combination with the ground plane,
• wherein the instructions, when executed, further cause the at least one processor to determine the electromagnetic rays interacting with the target by at least:
• determining a target image for the target that mirrors the target about the ground plane;
• determining an electromagnetic sensor image that mirrors the electromagnetic sensor about the ground plane;
• launching initial electromagnetic rays from the electromagnetic sensor at the target and the target image, the initial electromagnetic rays having the same spatial ray density relative to the target and the target image;
• performing ray tracing to determine reflected electromagnetic rays from the target and the target image;
• and
• evaluating, based on equivalent surface currents, scattered fields of the reflected electromagnetic rays received by the electromagnetic sensor and the electromagnetic sensor image.