Automated target generator range and doppler calculator
US6384771B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Apr 25, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4082
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automated simulator for radar and sonar applications. The inventive simulator is implemented in hardware and generates current parameters with respect to a simulated target in response to a plurality of initial values with respect thereto. In the illustrative embodiment, the initial values include range, velocity, and acceleration and are stored in first, second and third register respectively. In the best mode, the invention is implemented in a field-programmable gate array. The inventive target simulator also includes a range delay circuit for generating a simulated return from the simulated target. The range delay circuit includes logic for determining whether a simulated pulse train to be received is ambiguous or unambiguous and adjusting the pulse repetition rate of the pulse train accordingly. The range delay circuit calculates die initial time that a packet needs to make the trip to and from the target. Then, in the ambiguous case, the circuit only calculates how long it takes between pulses to arrive rather than the entire round trip. When the round trip distance and the ambiguous time are identical, the range delay circuit calculates both ambiguous and unambiguous signa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.