Why can the ballistic missile be played more and more accurate?

Why can the ballistic missile be played more and more accurate?

Have you ever thought about this problem at the same time?

Want to know why ballistic missiles can be played accurately?

First of all, you need to understand what is ballistic missile!

The ballistic missile is

Missile to attack the target by parabolic line motion

(Simply speaking, the parabolic line motion is just like an angry bird)

Basic constituent system of missiles

The missile system is composed of power device, guidance system, combat department, and bullet body. Missiles can accurately strike the target mainly to rely on a comprehensive guidance system. The most common guidance means is inertial guidance technology.

Basic missile composition system

By improving the accuracy of inertial devices and using error supplementation methods to correct the cumulative errors of missiles in flights, the accuracy of the missile is getting higher and higher.

In 1980, Dongfeng 5 Intercontinental missiles were successful for the first time. Dongfeng 5 Intercontinental missile has a diameter of 3.35 meters. The box uses high -intensity aluminum copper alloy. The guidance system uses a habitual platform, and equipped with electric liquid servo mechanisms to change the direction of flight.

Dongfeng 5 Flight Experiment 1

At this stage, higher requirements for the precision of missile hitting the missiles. Advanced performance guidance systems such as millimeter wave system, laser guidance, infrared imaging guidance, scene area related guidance and GPS/habitual combination navigation technology, etc. Apply on advanced missiles.

Another key to precise strike

With the development of technology, the accuracy of inertial guidance is getting higher and higher, and at the same time, the free flight section (middle) and re -entry (last section) of the ballistic missile flight also introduce guidance technology to form a composite guidance system

Mid -section guidance technology include navigation satellite guidance, astronomical guidance, radio guidance and other technologies. Termid guidance technology include topographic image matching guidance technology, optical self -searching, etc.

Sensitive measurement device of the control system

The relevant information measured

Computer processing on the missile

And after transforming the magnifying device

Transform and amplify the measured signal

Form the corresponding instructions to control missile flight

Then through the control of the executive agency

Adjust the speed and attitude of the missile

Constantly correct accumulation errors

Make the missile fly along the scheduled ballistic until the target hit the target

So the accuracy of ballistic missiles

Gigained, more and more accurate!

The hit accuracy of the ballistic missile is the same type of missile to the target with the circular probability error CEP, which requires half of the missiles to measure in the circle with the goal as the center, and the radius of the circle is to measure the CEP.

Early strategic ballistic missiles were very low. The current strategic ballistic missile accuracy has been greatly improved. If the nuclear warhead is used, this error can be ignored.

PS: Dongfeng 26 missile can be equipped with conventional warheads and nuclear warheads

Reference materials:

1.https://mp.weixin.qq.com/s/0cbj7mriby7o1etnqww_ig

2.https://mp.Weixin.qq.com/s/j4cd

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