Method for the improved utilization of response signals in a _secondary radar system and a secondary radar system for implementing the method
US4174519A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1978 |
| Grant date | Nov 13, 1979 |
| Priority date | — |
| Expiry date | Oct 23, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/781
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The time interval between the pulses of an interrogation signals transmitted to aircraft in the vicinity of an airport is varied at will in accordance with air traffic conditions. The time interval under heavy traffic conditions may be varied from its nominal value as a function of the rate of response signals, the garbling rate thereof, or the decoding rate. The time interval may be controlled manually as a function of air traffic conditions displayed on a screen associated with the interrogator and receiver. By varying the time interval the percentage of responses to interrogation may be varied to optimize overall reception conditions and utilization of potentially available information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.