Bright Sword starts with the grenade flat.

Chapter 401 Classification of Guidance Methods

So Liu Xiu, who knew that radar guidance was not feasible, could only think of other guidance methods. After all, there is more than one way to guide a missile!

You should know that the biggest difference between missiles and ordinary artillery shells is that, in addition to having a power system, missiles have a guidance system that enables them to accurately hit targets.

The guidance system and power system work together to enable the missile to automatically track the target and change its path to destroy the target.

Of course, there are many different ways to guide missiles, but these various guidance methods can be roughly divided into three types: remote control guidance, enemy-seeking guidance and active guidance.

Remote control guidance, as the name implies, requires the guidance station to calculate the target's direction and distance, and then send the command to the missile through the command sending device, so that the missile flies to the target, that is, the command station commands the missile to destroy the target. There are two common methods: beam guidance and command guidance. Command guidance is divided into wired and wireless. Wireless command guidance generally uses radar to measure target information, launch guidance missiles, and correct errors. The ship-borne combined missile and artillery close defense system is a typical radio command guidance.

The wired command guidance is divided into manual wired command guidance, semi-automatic wired command guidance and optical fiber guidance. Among them, the manual wired command guidance is basically out of use. There is no way. The missile flies too fast and cannot be controlled by human reaction ability.

Representatives of semi-automatic wired command guidance include TOW and AT-5. The representative of fiber-optic guidance is Arrow-10. When this fiber-optic guided missile is flying, the optical fiber is released from the tail, and the control command is transmitted to the missile through the optical fiber. It has the advantages of strong target recognition ability, high guidance accuracy, and good anti-interference ability.

Beam guidance tracks the target through radar and illuminates the target through radar beam or laser beam. When the missile enters the beam, the missile's own control device corrects the angle to destroy the target. Beam guidance has the advantages of low cost, low interference and the ability to control multiple guided missiles at the same time. However, the target needs to be illuminated continuously during the attack, which makes it easy for the enemy to discover and counterattack first.

In short, in a popular sense, command guidance means that there is a command using sound to "tell" the missile to fly towards the target. At this time, the missile is blind and can only attack by "listening" to the instructions; while beam guidance means that the missile relies on its own "eyes" to see where the marked target is, and then corrects its own flight trajectory to fly towards the target.

Therefore, the remote control guidance method is also called passive missile guidance.

The biggest difference between enemy-seeking guidance and remote control guidance is that remote control guidance needs to receive target information from the control console behind, but enemy-seeking guidance receives information generated by the target, including reflected information. Enemy-seeking guidance is divided into active patrol guidance, semi-active enemy-seeking guidance and passive enemy-seeking guidance. The guidance beam of enemy-seeking guidance can be radar beam, infrared beam, sound wave, etc. The only difference is that the guidance beam is different, and the method is similar.

Semi-active radar guidance is when an airborne or ground-based radar emits an illumination beam, "lights up" the target position and reflects it to the missile, guiding the missile to fly to the "lit" target. In short, the radar is not on the missile. The difference between active radar guidance and semi-active is that the missile itself has a transmitter that can illuminate the target and receive reflected information. Passive guidance directly tracks the signal emitted by the enemy to attack. For example, an anti-radiation missile can directly attack the enemy radar based on the radar waves emitted by the enemy radar.

Autonomous guidance can be seen as turning every missile into an intelligent system, such as program guidance, inertial guidance, satellite guidance, terrain matching guidance, starlight guidance, etc. These guidance methods are expensive and have many disadvantages. For example, inertial guidance will cause the error to increase with the accumulation of time and distance; terrain matching guidance is easily misled by sudden terrain changes and loses its target. Therefore, when missiles use autonomous guidance, they generally choose to combine multiple guidance methods to compensate for the errors caused by various guidance methods, so as to achieve the purpose of precision guidance.

However, these guidance methods are fine for planetary-level warfare, but they are not good enough for interstellar warfare when the environment is changed.

The most typical problem is the delay in the propagation of light. After all, radar and other signals will have a long guidance delay time in interstellar space due to the long transmission distance.

Fortunately, there is a solution to the problem of light traveling too slowly.

That’s right, the problem of light propagating too slowly in the universe has been solved by using quantum entanglement communication.

By utilizing quantum entanglement communication without delay, Liu Xiu can easily remotely control the direction of the electromagnetic cannon shells anytime and anywhere.

Of course, that’s not all. In order to improve the concealment of guided electromagnetic artillery shells, Liu Xiu also directly added optical concealment positions to the guided electromagnetic artillery shells.

After all, although the guidance problem has been solved, don't forget that they still have the ability to intercept.

For example, there are all kinds of interception methods such as laser cannons, rapid-fire electromagnetic cannons, microwave radiation cannons, etc. Therefore, optical stealth and electromagnetic stealth are naturally indispensable.

After all, missiles in the past took a lot of effort to evade radar and anti-missiles.

For example, low-altitude cruise missiles that lower their altitude, and hypersonic penetration missiles that fly into space and then land.

However, for every spear there is a shield. In order to defend against missiles, all kinds of means are used, such as rapid-fire close-in defense cannons, anti-missile missiles, and electromagnetic interference!

Of course, Liu Xiu's method of adding optical stealth and quantum entanglement communication guidance naturally increased the cost of an electromagnetic cannon shell.

But the good thing is that although Liu Xiu is now building star-destroying laser cannons and guided electromagnetic cannons.

However, most of the wandering humans on Blue Star have been injected with genetic enhancement drugs, including Liu Qi.

So although the expenditure on weapons research and development is already huge at this time.

However, the entire human race on the Wandering Blue Planet took it for granted and did not develop any opposing or rebellious emotions.

As a dazzling white light lit up, the space fighter that was originally swaying left and right and flying irregularly outside an astronomical unit was reduced to ashes in the dazzling white light.

And this scene is naturally the test launch of the guided stealth electromagnetic annihilation shell.

The test was very successful, but Liu Xiu was somewhat dissatisfied because when the guided electromagnetic artillery shell changed its position, the rocket's tail flame could not be hidden by the optical stealth position.

In other words, the electromagnetic cannon shell will be discovered when it turns a corner.

But this cannot be improved.

Although I am not satisfied with it, it is pretty good now, at least it is much better than the original one.

However, once the guided electromagnetic annihilation stealth shells are to be mass-produced, the most important problem is antimatter.

There is no way to produce antimatter, as it requires a lot of energy.

The wandering blue star that Liu Xiu had in mind had no way of staying in the Proxima Centauri system, so in the end he had to use a heavy fusion reactor, that is, to generate electricity from the waste heat of the planetary engine to produce antimatter.

(End of this chapter)