Ultra-wideband radar system using sub-band coded pulses
US6989782B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2004 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | Jul 13, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/282
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus are provided for radar systems using multiple pulses that are shorter than the expected range delay extent of the target to be imaged. In one implementation, a method for performing radar includes the steps of: transmitting a plurality of pulses, each pulse having a different center frequency and a time duration shorter than an expected range delay extent of a target, wherein a total bandwidth is defined by a bandwidth occupied by the plurality of pulses; receiving reflections of the plurality of pulses; and performing pulse compression on the received pulse reflections to generate a detection signal having a radar resolution approximately equivalent to the transmission and reception of a single pulse having the total bandwidth. In preferred form, the pulses comprise ultrawideband (UWB) pulses each occupying a sub-band of the overall system bandwidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.