JPS6354997B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a flying object.

(Prior art) Conventionally, there are active methods and passive methods for detecting tanks, etc. on the ground.
The former active method uses a pulse radar method,
FM and CW systems were used. The latter passive method also adopted the radiometer principle.

(Problems to be Solved by the Invention) However, in the conventional active system, the transmitter and receiver are housed in an integrated submunition, so isolation between the transmitter and receiver is difficult and the device is complicated. On the other hand, the passive method requires an ultra-sensitive receiver to detect thermal noise radiated by the target, making the device not only complex but also expensive.

The present invention has been proposed in view of the above points, and its purpose is to separate the oscillator, which serves as a transmitter, and the receiver sensor in a flying object, unlike the conventional active method. The side is configured as a seeker, which eliminates the need for electrical isolation between the transmitter and receiver, and unlike the passive method, it has a separate oscillation source, which has the advantage of increasing detection sensitivity. It is an object of the present invention to provide a flying object having a submunition seeker that can be simplified and the cost can be reduced.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes an oscillator having a parachute, a submunition seeker having a parachute and a receiver, and a submunition seeker having a parachute and a receiver.
The gist of the invention is a flying object characterized by comprising a timer and a warhead for separating the oscillator and submunition seeker.

(Practical Examples) Examples of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of a flying object 1 according to the present invention. This flying object 1 is equipped with a warhead 2 having a timer that operates at a preset time, and a receiver (not shown). A plurality of submunition seekers 3 each having a parachute 5 (see Fig. 2) that opens when the submunition seekers 3 are separated, and a parachute 5 that opens when the submunition seekers 3 are incorporated together with the submunition seekers 3 and that open when the submunition seekers 3 are 6, and descending separately from the submunition seeker 3,
It is equipped with an oscillator 4 that oscillates a predetermined radio wave.

Next, the operation of the present invention will be explained with reference to FIGS. 2 and 3.

The submunition seeker 3 and oscillator 4 that constitute the flying object 1 are scattered in the air when the flying object 1 is launched and the timer setting time is reached.

In this case, since the submunition seeker 3 and the oscillator 4 each have parachutes 5 and 6, they are suspended in the air, and radio waves are emitted from the oscillator 4 over a wide range toward the ground 7. The radio waves emitted from this oscillator 4 are pulse-modulated with a fixed frequency of several tens of Hz to several kHz.

The central axis of the submunition seeker and the central axis 9 of the antenna radiation pattern are configured to coincide.

If there is an object 8 to be detected, such as a tank, on the ground, the radio waves emitted from the oscillator 4 will hit the object 8 and be reflected.

As shown in Fig. 3, the submunition seeker 3 is set so that the central axis 9 of the antenna radiation pattern is inclined with respect to the ground, and has a rotating mechanism to extend the distance from the submunition seeker 3 to the ground. It descends while turning around straight line 11. Therefore, the locus 10 of the central axis 9 hitting the ground 7 draws a spiral. On the other hand, the radio wave emitted from the oscillator 4 hits the earth 7 and the object to be detected 8, and a reflected wave is emitted from each of them. And trajectory 1
When the detected object 8 is present above the detected object 8, the reflected wave from the detected object 8 is received.

In this case, the reflected wave from the detected object 8 is larger than the reflected wave from the ground 7, so if the detection level of the reflected wave is set higher than the reflected wave from the ground 7, the presence of the detected object 8 can be detected. When detected, the parachute is separated, and the submunition seeker 3 immediately burns the gunpowder and rushes toward the object 8 to be detected, which is present in the direction of the central axis 9.

(Effects of the Invention) As described above, according to the present invention, since the oscillator is separated from the submunition (which has a receiver), there is no need for isolation between the two, and compared to the active method, the oscillator is It has the advantage that it can be used individually.

Furthermore, since only the modulated radio wave emitted from the oscillator is received, it is possible to achieve a very narrow band, thereby increasing detection sensitivity.

Further, due to the above, it has advantages such as being able to reduce the manufacturing cost of the flying object.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the schematic configuration of the flying object according to the present invention, Fig. 2 is an explanatory diagram of the operation of the present invention, and Fig. 3 is an explanatory diagram of the trajectory of the central axis of the receiving antenna radiation pattern of the submunition seeker hitting the ground. It is. 1 ...flying object, 2...warhead, 3...submunition seeker,
4... Oscillator, 5, 6... Parachute, 8... Object to be detected, 9... Central axis of receiving antenna radiation pattern, 1
0... Trajectory, 11... Submunition seeker extension line 11 descended onto the ground.

Claims (1)

[Claims] 1.Equipped with an oscillator having a parachute and a receiver having a parachute and receiving the reflected wave from the detected object of the radio waves emitted from the oscillator, and when the receiver detects the presence of the detected object, the parachute is separated and the detected object is removed. A flying object comprising one or more submunition seekers that rush towards a submunition seeker, and a warhead having a timer for separating the oscillator and submunition seeker after a certain period of time after flight.