JP2864756B2 - Radar system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radar system,
In particular, the present invention relates to a radar system having a pseudo radio wave generator (decoy) for avoiding an attack by a radio homing missile.

[0002]

2. Description of the Related Art Conventionally, in a defense radar system, as one of means for coping with a radio homing missile which is the most threatening, a simulated radio wave generating device is arranged near a place where the radar device is installed. ing.

A radio homing missile is fired for the purpose of destroying a radar device, detects the direction of a radio wave emitted from a target radar device, and controls the course to fly. On the other hand, the radar device detects the incoming radio wave homing missile, detects the position and speed, and calculates the expected time at which the missile arrives within the effective distance range of the pseudo radio wave emitted by the pseudo radio wave generator. When the expected time comes, the radar device stops transmitting, and the pseudo radio wave generator emits a pseudo radio wave to change the course of the missile to the installation direction of the pseudo radio wave generator.

[0004] As described above, the course of the radio homing missile is changed by the pseudo radio wave to prevent the important and expensive radar device from being destroyed by the missile.

[0005]

In the conventional radar system described above, one radio homing missile has one
Since the pseudo radio wave generators are destroyed, there is a disadvantage that only the number of installed pseudo radio wave generators can cope with the radio homing missile. It is also conceivable that radio waves are emitted from two places at the same time and a radio homing missile is guided to the middle point of the two places. There are drawbacks.

An object of the present invention is to provide a radar system capable of avoiding a radio homing missile without destroying a pseudo radio wave generator.

[0007]

SUMMARY OF THE INVENTION A radar system according to the present invention includes a radar apparatus for emitting radar radio waves, a pseudo radio wave generating apparatus for detecting the radar radio waves and emitting a pseudo radio wave to a missile flying, A lift device that raises and lowers the radio wave generator to change the emission position of the pseudo radio wave, and a control device that controls the radar device and the radio wave emission of the pseudo radio wave generator and controls the elevation of the lift device. It is configured. Further, the control device stops the emission of the radar radio wave when the incoming missile enters the effective distance range of the pseudo radio wave, and simultaneously sets the pseudo radio wave generating device to the highest position on the ground to set the pseudo radio wave. Then, the emission of the pseudo radio wave is stopped, and the pseudo radio wave generator is set to the lowest position on the ground just before the missile arrives.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention, which includes a radar device 1, a pseudo radio wave generating device 2, a control device 3, and a lifting device 4.

When the radar device 1 detects that a radio homing missile comes, it sends data such as the position and speed of the missile to the control device 3. Control device 3
Is a scheduled time T1, at which the missile enters a range in which the pseudo radio wave of the pseudo radio wave generator 2 can be received based on this data,
And the expected time T0 at which the missile arrives. When the predicted time T1 has come, the control device 3 stops the emission of the radar radio wave S1 from the radar device 1 and simultaneously emits the pseudo radio wave S2 from the pseudo radio wave generating device 2.

The pseudo radio wave generator 2 is mounted on the elevating device 4 so that the ground height can be varied, and is usually set at the highest position. Now, assuming that the time required for the elevating device 4 to lower the simulated radio wave generating device 2 from the highest position to the lowest position is t0, the control device 3 transmits the simulated radio wave S2 when the time becomes T0-t0. At the same time as stopping the emission, the elevating device 4 is instructed to lower the pseudo radio wave generating device 2 to the lowest position.

FIGS. 2A and 2B are a plan view and a side view showing a flight path of the radio wave homing missile. At first, the missile 5 detects the radio wave S1 from the radar device 1 and flies in the direction of the radar device 1.
When the pseudo radio wave S2 is received from the device, the course is changed to the direction of the pseudo radio wave generator 2. At this time, the ground height of the pseudo radio wave generator 2 is at the highest position a. When the time becomes T0-t0, the emission of the pseudo radio wave S2 is stopped, and at the same time, the lifting / lowering device 4 is operated to lower the pseudo radio wave generation device 2 to the lowest position b. By doing so, the missile 5 passes above the pseudo radio wave generator 2 and lands at the point c, so that the radar device 1 and the pseudo radio wave generator 2 can be prevented from being destroyed by the missile 5.

[0013]

As described above, in the radar system of the present invention, the pseudo radio wave generator is mounted on the lifting device, the pseudo radio wave is emitted at the highest position of the lifting device to change the flight direction of the missile, and then the missile is changed. By lowering the simulated radio wave generator to the lowest position before the vehicle arrives, the radar device and the simulated radio wave generator can be prevented from being destroyed by the missile.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIGS. 2A and 2B are diagrams for explaining a flight path of a radio homing missile, where FIG. 2A is a plan view and FIG. 2B is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Radar apparatus 2 Pseudo radio wave generator 3 Control device 4 Elevating device S1 Radar radio wave S2 Pseudo radio wave

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G01S 7/38 F41J 2/00 F41H 3/00 F41H 11/00

Claims (2)

(57) [Claims] A radar device for emitting a radar radio wave, a pseudo radio wave generator for detecting the radar radio wave and emitting a pseudo radio wave to a flying missile, and raising and lowering the pseudo radio wave generator to generate the pseudo radio wave. A radar system comprising: an elevating device that changes a launching position; and a control device that controls emission of radio waves from the radar device and the simulated radio wave generating device and controls elevation of the elevating device. 2. The control device, when the incoming missile enters the effective range of the pseudo radio wave, stops the emission of the radar radio wave, and simultaneously sets the pseudo radio wave generation device to the highest position on the ground. 2. The radar system according to claim 1, wherein the pseudo radio wave is emitted, and thereafter, the emission of the pseudo radio wave is stopped, and the pseudo radio wave generator is set to a minimum position on the ground just before the missile arrives. .