| 摘要 |
A land-based Smart-Sensor System and several system architectures for detection, tracking, and classification of people and vehicles automatically and in real time for border, property, and facility security surveillance is described. The preferred embodiment of the proposed Smart-Sensor System is comprised of (1) a low-cost, non-coherent radar, whose function is to detect and track people, singly or in groups, and various means of transportation, which may include vehicles, animals, or aircraft, singly or in groups, and cue (2) an optical sensor such as a long-wave infrared (LWIR) sensor, whose function is to classify the identified targets and produce movie clips for operator validation and use, and (3) an IBM CELL supercomputer to process the collected data in real-time. The Smart Sensor System can be implemented in a tower-based or a mobile-based or combination system architecture. The radar can also be operated as a stand-alone system. |
| 主权项 |
1. A non-transitory computer-readable medium comprising instructions stored thereon, which when executed by at least one processor, configure the processor to perform operations comprising:
transmitting a plurality of radar pulses by a non-coherent radar toward an area of interest; receiving a radar return scattered from the area of interest, the radar return including a return from a target and interference from system noise and background noise and clutter; and processing the radar return for at least one range-azimuth resolution cell in the area of interest to differentiate the return from the target from the interference from the system noise and background noise and clutter, the processing including:
applying at least one threshold to differentiate the target from the noise and system noise and the background clutter;comparing the radar return to a first threshold of the at least one threshold, the first threshold set at a level to identify multiple radar contacts including the target and false contacts from the interference from system noise and background noise and clutter, wherein a radar contact is declared when the radar return exceeds the first threshold; andtracking the multiple radar contacts over time to distinguish the target from the false contacts. |
