• Multilateration/Wide Area Multilateration

  • The system uses the Time Difference of Arrival (TDOA) of the signals received by the base station to achieve accurate, reliable, and real-time positioning and identification for airborne or ground-based aircraft, operational vehicles, or other targets with Mode A/C/S signal transmission capabilities. At the same time, the system can also receive and process standard format ADS-B signals (1090ES) to form an ADS-B surveillance target, serving as a redundant means of multi-base station measurement, positioning, surveillance, or independent output. This fulfills the application requirements for high-precision target monitoring in various environments such as airport surfaces, terminal areas, and wide areas (air routes and airspace).

  • Functions

    • Surface inquiry
    • ADS-B information fusion
    • Target synthesis situation display
    • System monitoring management

    Applications

    Dozens of domestic airports: Wilson Airport, Kisumu Airport, Malindi Airport, Mombasa Airport in Kenya.

     

    Features

    • A cost-effective solution for the surveillance of surfaces, approaches, and en-route operations.
    • Identifies all targets equipped with Mode A/C/S transponders or ADS-B equipment.
    • Dual synchronization: GNSS synchronization for signal time-stamping and beacon transponder synchronization for backup.
    • Features high positioning accuracy, high update rate, high reliability, and convenient remote maintenance.

    Specifications

    Input Data: Mode A/C/S, 1090ES

    Output Data: ASTERIX CAT 10, 19, 20, 21, 23, 247

    Operating Mode: Interrogation: 1030 MHz; Receiving/Calibration: 1090 MHz

    Detection Range: Surface: 20 km; Wide Area: 100 km

    Positioning Accuracy: Surface: ≤5 m; Wide Area: <30 m

    Data Processing Capacity: 600 targets/s

    Maximum Latency: 500 ms

    Accuracy of Runway: 7.5 m

    Update Rate: Data driven or periodic mode

    Receiver: Bandwidth: ≥10 MHz; Sensitivity: -91 dBm; TOA Error: <5 ns; Power Consumption: <50 W

    Transmitter: Interrogation Modes: 1030 MHz, Modes 3A/C/S; Peak Power: ≥50 dBm; Spurious Radiation: ≤-76 dBw

    MTTR: <15 mins

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