Chapter 2107: Three fights three defenses

In fact, when radar first appeared, there was this method. For example, in 1935, Robert Watson Watt used the short-wave radio frequency emitted by Niu Country Broadcasting Company in a single-static passive system to illuminate 10 kilometers away. "Hayford" bomber.
However, a simple study at the beginning found that the accuracy of this method is too poor. At most, it is to know that there is a target there, and then nothing is known. This is not very useful at all. Therefore, this This way was quickly eliminated.
Only now, with the rapid development of electronic computer technology and the realization of various advanced algorithms for discovering targets, this approach has become possible.
For example, the well-known silent sentry is like this, searching for targets through signals transmitted by mobile towers, signals transmitted by high-power TV stations, and so on.
This is also based on a principle. In the electromagnetic field, if a target appears, it will definitely affect the distribution of the electromagnetic field, so that the target can be found.
Of course, if there is only one receiver, it will definitely not be able to accurately locate it. At least three or four receivers are required. Moreover, it is best to know the original electromagnetic radiation situation here, so that it is the easiest to find the target.
In national air defense, these are easy to do. For example, the transmission towers of various TV stations and the various mobile communication towers under construction are all releasing electromagnetic waves. Using these electromagnetic waves, you can know that you have broken into this airspace. Goal again. Of course, what Qin Guan said now seems to be very sci-fi. After the research project is determined and handed over to 114 or other research institutes, Qin Guan can take the corresponding information and accelerate the research and development of such projects.
Using this kind of passive radar, in addition to discovering stealth machines, another advantage is that it can also find low-altitude targets. After all, low-altitude targets will also induce changes in the electromagnetic field distribution.
Unless the fighters are all made of titanium alloys, they will definitely be invisible.
Of course, there are many uncertainties of this kind. When the meter wave radar and passive radar develop together and defend together, it will be foolproof.
In this meeting, Qin Guan successively threw out various new ideas, and the people present only digested and understood.
How to conduct homeland air defense in future wars? It's completely different from the current one!
Seeing that they were working hard to understand the views that Qin Guan gave, Qin Guan finally held back: "In the future war, there will be new styles. Let's talk about it tomorrow."
Qin Guan was too afraid that they could not digest it. However, they were obviously not reconciled. Now that they heard what Qin Guan said, General Lin spoke: "Anyway, there is still time now, President Qin, let's talk about what else will happen in the future. ?"
"Cruise missiles." Qin Guan said: "In addition to stealth aircraft, the second most threatening to us is cruise missiles. This is also a method that will be used frequently in the first round of attacks."
Speaking of cruise missiles, everyone knows that this type of missile is a weapon for ground attack, but unlike ballistic missiles, it is not a high-throw ballistic, but a cruise route for ultra-low-altitude flight, just like a penetration defense It’s the same as the fighter plane, except that it has a lower altitude than a fighter plane. If it’s a flat land like a desert, its flying height may be more than ten meters. If it’s a mountain, etc., it won’t fly more than 100 meters. It can even advance through the valley. One of its basic principles is that it is still difficult to catch ultra-low-altitude targets. This is a worldwide problem. When ultra-low-altitude targets are combined with improvements in stealth technology, it will be even more difficult to deal with.
Precisely because it is relatively concealed, in the first round of strikes, cruise missiles and stealth aircraft are generally used, and those threatening targets are knocked out, long-range radars, etc., and the second round will be ordinary aircraft. On, the first round is for knocking on the door.
Look at the wars in later generations. In the first round, various warships of the Eagle’s navy and various bombers of the Air Force would throw a large number of cruise missiles over. There were hundreds of them at every turn. In the future wars, That's money.
Right now, the threat of cruise missiles has not yet begun, but in the future, this will be a very difficult opponent. We are already developing cruise missiles, but how to defend against such missiles is still unclear.
"Cruise missile is also an ultra-low-altitude target. Moreover, it is a missile. The echo of the target is smaller. Therefore, more stringent requirements are put forward for our air defense." Qin Guan said: "The first step is to find that it can be with us now. The research on how to find ultra-low-altitude targets is closely related. We can use our research results. After the discovery, how to attack cruise missiles requires further research. Fortunately, as long as cruise missiles are discovered, it is still easy to attack them. ."
Cruise missiles also rely on stealth and ultra-low altitude to attack targets. However, they are not piloted and fly according to the established route. When faced with such targets, as long as they are discovered, they are still very easy to attack.
There is no need for long-range missiles. For general long-range air defense missiles, the minimum firing height is relatively large, and targets that are too low cannot be hit. This ultra-low-altitude cruise missile uses medium-range or short-range missiles, or even small-caliber rapid-fire guns. For example, the 730 gun of the Navy also has a relatively good attack effect.
These technical reserves are available, but if you don’t conduct special research now, once you find the threat of this kind of thing, you will inevitably be in a hurry.
Now, in order to resist foreign enemies, the army has launched three defenses: "fighting fighters, tanks, airborne, anti-atomic, anti-chemical, and anti-biological weapons." However, with the development of the times, this has become obsolete.
Now, as the international situation changes, it is time to let the "new three strikes and three defenses" step onto the stage: "Fight stealth aircraft, cruise missiles, and armed helicopters; prevent precision strikes, prevent electronic interference, and prevent reconnaissance and surveillance." With the development of technology, the military needs to face new threats.
now what? Do you want to put this new three defenses formally?
In fact, the threat of armed helicopters is not very great, because they dare not come out without seizing air supremacy. However, since it is for foresight, let's put it forward! This happens to be a profound summary for today's meeting!
Qin Guan said to the crowd: "Everyone, now, I have a new proposal to change our original three defenses and three defenses. With the development of the times and the advancement of technology, we have to fight and defend. Has changed."