Radar Inter-Pulse Doppler Phase Generation Using BVH Micro-Step Scene Interpolation

The patent segments the continuous scene into discrete micro-steps (e.g., 100 micro-steps per scene) and processes radar reflections at specific intervals rather than continuously. This segmentation allows the system to maintain measurement precision at key points while dramatically reducing computational burden by skipping intermediate calculations, directly resolving the contradiction between accuracy and computational time.

The patent performs preliminary actions by pre-calculating and storing scene geometry data, object positions, and radar parameters before the actual simulation. By preparing bounding volume hierarchies and spatial indexes in advance, the system reduces real-time computational requirements while maintaining data accuracy, effectively reducing computational time without sacrificing measurement precision.

The patent applies local quality by focusing computational resources on specific reference objects that are most relevant to the radar simulation rather than uniformly processing all objects. By identifying and prioritizing objects based on their radar cross-section, position, and motion characteristics, the system achieves comprehensive data coverage for critical targets while reducing device complexity by excluding less important objects from detailed simulation.

The patent implements partial action by simulating radar reflections for only a subset of objects (reference objects) rather than all objects in the scene. This selective approach provides sufficient data coverage for training machine learning systems while significantly reducing simulation complexity and computational resources required, as the patent demonstrates that simulating all objects is excessive for the intended application.

The patent implements periodic action by performing full Doppler phase coherent simulations only at specific pulse intervals rather than at every pulse. The system maintains measurement precision by ensuring phase coherence at these periodic intervals while improving productivity by using interpolated or approximated values for intermediate pulses, thereby reducing the frequency of computationally intensive full scene re-rending operations.

The patent uses copying by creating simplified representations or proxies of the full scene for intermediate pulse calculations. Instead of re-rendering the complete scene at every pulse, the system copies and interpolates from previously computed phase coherent data, maintaining adequate signal accuracy for training purposes while dramatically improving simulation speed and productivity.