ADF bearing and location for use with ASR and ASDE displays
US4688046A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1982 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Sep 13, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S11/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An aircraft locating system identifies on a TV format radar display the position of a specific aircraft based on an RF transmission from the aircraft on an RF channel. The locating system includes at least a pair of receive stations located within several miles of an airport and separated by a base line which is in near proximity to at least one runway at the airport or a theoretical extension thereof. Each receive station includes a passive receiver for determining a bearing angle to a source of RF on the RF channel for generating a signal representative of the bearing angle. The locating system further includes a processor which is responsive to bearing angle signals derived from the receive stations for generating line count and line delay information. The line count and line delay information correlate a position determined by the bearing angle signals from at least a pair of receive stations with a frame of reference of the TV display. The system further includes a video mixer which responds to two different input signals. A first input signal to the video mixer is a scan converted radar return signal. The second input signal to the video mixer is the line count and line delay…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.