At this point, Wang Xuexin stopped playing charades with Su Liguo. He stated his thoughts directly: "Mr. Su, I have an idea. If we can use radar to detect shells from enemy artillery, that's
Isn't it possible to calculate the ballistics based on the trajectory of the artillery shell? And then calculate the Japanese artillery position in reverse?"
As soon as these words came out, Su Liguo was stunned and Su Xin looked at Wang Xuexin with incredible eyes.
After a while, Su Xin asked dubiously: "Classmate Xiao Wang, you don't want to use this method to gain an advantage in artillery, do you?"
"Isn't it?" Wang Xuexin replied: "If this can be calculated like this, then we don't need any artillery observers to calculate. We can directly use radar to calculate the Japanese artillery positions. Then we can hit them accurately! Then we will forget it.
So what if we don’t have enough shells or artillery? Aren’t the Japanese artillery only meant to be beaten?”
Su Liguo and Su Xin couldn't help but look at each other. They both studied radar, especially Su Liguo. He just liked to tinker with radios, sound waves and other things all day long, but he didn't expect that radar could also be used.
Use it like this.
"Classmate Xiao Wang!" Su Xin couldn't help but said: "Are you a little fanciful? Nothing is so easy!"
Wang Xuexin just smiled and said nothing.
He can actually understand Su Xin. This does sound a bit "fantasy". He can actually use radar to reversely deduce the position of the enemy's artillery. Does the enemy's artillery still have a way to survive? Is it too easy to fight like this?
But Wang Xuexin knew and was certain that this was feasible.
It didn't even take a few years for this thing to appear. China imported two artillery detection radars called "Lark" more than forty years later, in the 1990s.
After our army's artillery used this kind of artillery detection radar, the enemy's artillery shells had just come out of the barrel. Our army immediately knew the location of the enemy's artillery position, and then the shells immediately passed by in pieces, and the enemy's artillery had no time to move.
The enemy was beaten unconscious for a long time and didn't know what happened. Later, when he found out, he sent a special agent team to destroy one of our army's artillery detection radars...
It was because Wang Xuexin knew these things that he thought about whether he could develop an artillery detection radar: Since the Eighth Route Army can already produce radar, and it is one of the best radars in the world, why not give it a try?
If this thing is done, even if the Eighth Route Army has fewer artillery and fewer shells, it can still defeat the Japanese artillery!
Su Liguo thought for a while and then said: "I think... the leader's idea is possible, at least theoretically feasible!"
"Yes, yes!" Wang Xuexin said happily: "Mr. Su is still visionary, knowledgeable and capable!"
While talking, he glanced at Su Xin secretly.
Su Xin still doesn't know what Wang Xuexin means. The implication is that she has no vision, knowledge and skill!
Su Xin gritted her teeth and calmly stretched out her foot and stepped hard on the instep of Wang Xuexin. Wang Xuexin almost screamed out in pain, but because Su Liguo was present, he did not dare to make a sound, so he could only grin and twitch.
Cool air.
Su Xin, however, acted as if nothing had happened, and asked Su Liguo calmly: "Mr. Su, you said this theory is feasible, but it is difficult to implement it in practice?"
Su Liguo didn't notice the little movements of the two people at all. He had been immersed in his own world just now. When Su Xin asked him, he nodded and said: "Of course there are difficulties, such as..."
"Like what?" Su Xin asked curiously.
"Such as the issue of radar wavelength!" Su Liguo replied.
"Wavelength problem?" Wang Xuexin didn't know much about this aspect.
Su Liguo nodded and explained: "Radar wavelengths are divided into four bands: L, S, C, and
High. The shorter the wavelength, the limited the observation distance, but the accuracy is higher! The Mark 3 radar we imported from Yingjiang is a medium wave radar, which is between short wave and microwave... If the observation target is enemy artillery shells,
The most suitable one should be microwave radar!”
Wang Xuexin said "Oh" and understood.
To put it simply, the enemy's artillery position will not be too far due to the range. Even if its range reaches dozens of kilometers, the artillery shells will eventually fly to our position. Our radar will not be too far away from the artillery shells, so there is no need to
It has the advantage of long observation distance, but requires accuracy, so X-wave radar is most suitable.
At this time, Wang Xuexin suddenly understood why Hyundai said that the Huaxia 055 destroyer has a dual-band radar... It has two radar systems, S-band and X-band, which means it can observe both far and with high accuracy.
The so-called dual-band radar of the Jizi Qiuyue class is C-band and X-band. The reason why it is called useless is because the two bands are too close. Although the observation distance of C-band is farther, it is not much farther.
(Note: The only dual-band warship in the world is China's 055 large-scale destroyer, and Yingjiang also has one. However, because the dual-band radar is too large and consumes too much power, it cannot be installed on its destroyers, so it can only be used with a destroyer with poor performance.
Instead of many rotating radars (the 055 is a phased array radar with much stronger performance), its dual-band radar is installed on the Ford-class nuclear aircraft carrier. It is not without reason that the 055 is called the world's most powerful warship by military fans)
Su Liguo thought for a while and then said: "But... I don't think the problem in this area is big. We don't require such high accuracy. The bigger problem is..."
"What is it?" Su Xin asked impatiently. She seemed more anxious than Wang Xuexin.
Su Liguo pushed up his glasses and said: "Regiment Commander, Director Su, our radar rotates ten times per minute, which means one revolution every 6 seconds for one observation. Let me take the Japanese Type 41 75MM mountain gun as an example. This gun
The muzzle velocity reaches 360 meters per second. If air resistance is not taken into account, the shell will be flying more than 2 kilometers in the air after six seconds. We will probably lose the target and there is no way to calculate it!"
Wang Xuexin said "Oh", this is indeed a problem.
If you want to calculate the trajectory, you must capture at least two points of the same shell. If the speed is too slow and the shells explode on the ground, it will be useless to detect them.
"Try to see if you can increase the speed!" Wang Xuexin said.
Su Liguo thought about it for a moment, then nodded and said: "This is not difficult, but I think... there are more serious and even unsolvable problems!"
"Still have any questions?" Wang Xuexin and Su Xin exclaimed softly in unison.
And it was considered "unsolvable" by Su Liguo. It seems that this thing is really difficult to fix!