RU2816394C1 - Method for providing instrumental landing approaches for ship-based helicopters - Google Patents

Abstract

FIELD: radio engineering.

SUBSTANCE: method for providing instrumental landing approaches for ship-based helicopters, which consists in the fact that the ship, using an azimuth-range-finding radio beacon (ADFB) and/or a ship's three-coordinate surveillance radar station, receives signals reflected from the helicopter, calculates the coordinates of the helicopter and transmits them to inputs of the switch, from which they enter the computer converter, where they are processed jointly, coordinates are converted into a system relative to the landing trajectory and output signals are generated for launching simulators: control signal line simulator (CSL), microwave landing system simulator (MLS), ADFB simulator, in which output signals are generated, similar in format to the signals of real ADFB systems, landing radar complex, MLS, and emitted using antennas oriented towards the approach.

EFFECT: instrumented helicopter landing approach is provided without the use of radio beacons and landing radars.

1 cl, 1 dwg

Description

Field of technology to which the invention relates

The invention relates to radar, in particular to methods for ensuring instrumental landing of helicopters on ships.

State of the art

Most ships with single or group helicopters (Ka-27, Ka-31 and others) are equipped with a navigation and landing complex of the V-7M2 type (http://niiit-rk.ru/production/v-7m2/v-7m2. html).

The V-7M2 complex includes an azimuth rangefinder radio beacon (ADRM), which provides navigation for helicopters near the ship, and a landing radar complex (PRLK), which ensures the landing of helicopters on the ship.

ADRM and PRLC issue signals on board the helicopter that provide an instrumental landing approach, interacting with the on-board radio electronic equipment (avionics) of helicopters of the A-340, A-380 type and their modifications.

Depending on the purpose of the ship, the V-7M2 complex may not be installed in full configuration - either one ADRM or one PRLC. On a number of small ships with single helicopter deployments, due to limited capabilities, the B-7M2 complex may not be installed at all.

Disclosure of the invention

The objective of the claimed invention is to provide an instrumental landing approach for a helicopter without the use of radio beacons and landing radars.

This problem is solved through the use of means for simulating ADRM signals with data transmission equipment (ADT), PRLC with a control signal transmission line (LPSU), and microwave landing system (MLS) signals. The output signals of a ship's three-dimensional surveillance radar (for example, type 5P-26M) or the output of ADRM signals are used as triggering signals for the simulators.

In the method for providing instrumental landing approaches for ship-based helicopters using a ship-based three-coordinate radar with an antenna, or an ADRM with an antenna, or together a radar and an ADRM, according to the invention, the outputs with helicopter coordinates are connected through a switch and a computer-converter to the ADRM, PRLC and MLS simulators.

In this case, the ADRM, PRLC and MLS signals are simulated using simulators, a computer-converter and a switch.

Thus, the following technical result is achieved - ensuring an instrumental approach for a helicopter landing without the use of radio beacons and landing radars.

Brief description of drawings

The operation of the instrument landing means is illustrated in FIG. 1.

1 - antenna;

2 - antenna;

3 - antenna;

4 - antenna;

5 - antenna;

6 - ship-based three-dimensional radar

7 - ADRM (if available on the ship)

8 - LPSU simulator;

9 - MLS simulator;

10 - ADRM simulator;

11 - computer-converter;

12 - switch.

Shipborne radar 6 receives a signal reflected from the helicopter from antenna 1, calculates the coordinates of the helicopter and transmits them to the first input of switch 12. ADRM 7 (if present on the ship), using antenna 2, communicates with the helicopter via ADF, calculates its coordinates and transmits them to the second input of the switch 12. From the switch 12, the signals enter the computer-converter 11, where joint processing (filtering) of the helicopter coordinate information is carried out, the coordinates are converted into a system relative to the landing trajectory, and output signals are generated for launching simulators. Signals from the outputs of the computer-converter 11 are supplied to the inputs of the LPSU simulator 8, the MLS simulator 9 and the ADRM 10 simulator, from which the simulated signals are emitted into the air using antennas 3, 4 and 5.

Carrying out the invention

These instrumental approach aids operate as follows. The coordinates of the helicopter approaching to land from the outputs of the ADRM and the ship's radar through the switch 12 are sent to the input of the computer-converter 11. It jointly processes (filters) the coordinate information of the helicopter, converts the coordinates into a system relative to the landing trajectory and generates output signals for launching simulators .

In simulators 8, 9, 10, based on the received signals, signals are generated that are similar in format to the signals of real systems ADRM, PRLC, MLS.

The LPSU (8) and MLS (9) simulators are used when only one ADRM is installed on a ship, and the ADRM simulator is used when only one PRLC is installed on a ship. All three simulators are installed in the absence of a V-7M2 type complex on the ship.

Structurally, the proposed means are implemented in a single small-sized block (module) installed on the bulkhead of the ship's premises. Small-sized antennas (wave channel type) are installed on the aft part of the ship's superstructure and are oriented towards the landing approach.

Claims (1)

A method for providing instrumental landing approaches for ship-based helicopters, which consists in the fact that the ship, using an azimuth-range-finding radio beacon (ADRM) and/or a ship's three-coordinate surveillance radar station (radar), receives signals reflected from the helicopter, calculates the coordinates of the helicopter and transmits them to inputs of the switch, from which they enter the computer-converter, where they are processed jointly, coordinates are converted into a system relative to the landing trajectory and output signals are generated for launching simulators: control signal line simulator (CSL), microwave landing system simulator (MLS), ADRM simulator, in which output signals are generated, similar in format to the signals of real ADRM systems, landing radar complex (PLS), MLS, and emitted using antennas oriented towards the approach.

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