Chapter 804 Gao Zhendong’s new suggestion
Having been reminded so clearly, comrades are still very smart.
"Amplitude!" This is the easiest thing to think of. They still touch the radio often.
"The amplitude is not good. The signal amplitude is greatly affected by reflectivity, distance, rain and fog. It cannot be directly distinguished by simple signal amplitude. If the amplitude modulation method is like a radio, the system complexity will be greatly increased." Gao Zhendong answered , some comrades have already killed this idea first.
"Then frequency!" Anyway, there are only a few basic parameters of the signal. If you guess one after another, you can always guess.
Hearing this, Gao Zhendong nodded: "Yes, the frequency is okay, and there are many ways to use the frequency."
"Many kinds?"
"Yes, there are many kinds, suitable for different occasions, each with its own advantages and disadvantages."
Gao Zhendong introduced the frequency-related arithmetic codes, precise frequency codes, variable interval codes, pseudo-random codes and other methods. The comrades were fascinated to hear that there are so many coding methods that can be used. There are so many differences and uses for encoding methods.
After introducing various coding methods, Gao Zhendong brought things back. After all, these details are not needed for the time being. The most convenient way now, which is pulse width modulation, can solve the problem. But he still has a lot of suggestions on laser-guided bombs in general.
"Actually, from a practical perspective, I suggest you propose to the Air Force that even if the problem of simultaneous attacks on multiple targets has not been solved, you should produce a batch first for training and trial use. In fact, for precision-guided weapons such as laser-guided bombs, , there are not many scenarios where multiple targets attack at the same time, but more of them attack specific targets. In this case, a large enough ammunition can often solve the problem. If it is not possible, just throw a few at a time and share one irradiation It’s not impossible.”
Mr. Zhang nodded repeatedly: "We have also thought about this matter, but the Air Force is more insistent. Now that you have your suggestion, I think they will consider it carefully."
The same words, spoken by different people, have different effects.
Gao Zhendong didn't feel that Chunlei Factory was trying to take advantage of itself. Objectively speaking, the Air Equipment Bureau did not have as much trust in them as it did in him. This was a fact.
The biggest reason why he proposed that no matter how the problem of multi-target attacks is solved, a batch of laser-guided bombs must be produced for trial use first, is time.
If nothing else goes wrong, the time for Zang San to commit suicide should not be far away. Judging from what Gao Zhendong knew about the nature of the enemy in his previous life, this matter will change only with time, but the event itself will not change.
Before this time point, the more things we have on hand, the more attempts we can make. When the quantity of certain things reaches a certain level, it may be possible to produce qualitative changes.
"How is your infantry portable illuminator doing?" This is another thing Gao Zhendong is concerned about. For aircraft, the guidance pod method is undoubtedly more flexible and convenient than developing a specific irradiation indication system for the aircraft model. Under certain circumstances, if the scouts can have portable illuminators, the flexibility of using this weapon can be further improved.
Speaking of this, Mr. Zhang felt a little confused.
"There are some difficulties. It is difficult to achieve the irradiation power on the aircraft on the premise that the infantry can carry it more easily. We are carrying out a modular design of the illuminator, and strive to make it easier for four infantrymen to carry it after it is disassembled. "After all, no matter how limited the load capacity of the aircraft is, it is still much stronger than the infantry. 200~300 kilograms is not unacceptable for the aircraft, but it is too heavy for the infantry.
Gao Zhendong looked at him with an incomprehensible expression: "Why do we need to achieve the same irradiation power as that of an airplane pod?"
"For the sake of range, if this power cannot be reached, the guidance distance will not be able to meet the required range." Mr. Zhang also looked puzzled. The irradiation power is a hard target and it cannot be reduced.
"But infantry is generally irradiated at close range, and the distance from the irradiation point to the target is relatively less affected by rain and fog. It can be said that the complete optical path length of the irradiation is about 60% of the aircraft's own irradiation light path, which is as high as the sky. You can There’s no need for that much power.”
Gao Zhendong drew a light path diagram on the blackboard and immediately made Mr. Zhang autistic.
"That's... right, I'm stupid." Mr. Zhang slapped himself on the head, and he couldn't figure out why he didn't consider this situation.
"Moreover, you can learn from the technology of remote dispensers and install simple inertial navigation on the bomb. Even your aircraft does not need to receive the illumination signal. You can directly throw the bomb according to the coordinates given by the infantry. After the bomb flies over, it can be intercepted. Just follow the irradiation signal of the infantry's low-power illuminator." Gao Zhendong gave a simple compound guidance idea, which is more troublesome, but it is not impossible to implement. Can it still be like this? Mr. Zhang felt that his eyes had been opened. This method was unheard of and he couldn't even think of it.
But thinking about Gao Zhendong's thinking, it seems that it is actually possible in theory. Maybe the reliability is not that high, but in any case, this method of achieving precise strikes is more reliable than horizontal bombing.
For the Air Force, the hit rate of more than 85% is actually not that important. As long as one of the 10 bombs can hit the target in this way, it is a pure profit.
Take the famous work of laser-guided bombs, the Thanh Hoa Bridge in Cochin, for example. It took Citigroup a total of 7 years to blow up this bridge, from 1965 to 1972. There was nothing that could be done about the bridge, and the Citigroup was so sick that he rushed to the hospital. , even figured out the chore of releasing floating discus bombs from the upstream to the bottom, but still had no temper at all with this bridge.
In the end, it was the newly developed laser-guided bomb that destroyed the bridge in one fell swoop. The combat effectiveness of precision-guided weapons is evident.
Therefore, Gao Zhendong's idea is very simple. Try to expand the use scenarios of laser-guided bombs and increase the attack methods. Even if it is not very reliable, you might as well give it a try and try it out. Maybe it will work.
It is better to have a way than to be helpless, even if the method is not very reliable and requires a little luck, but as the old saying goes, opportunities always favor those who are prepared. What Gao Zhendong does is to use this weapon more With some preparation, you can at least have a chance to try your luck.
Thinking of this, Gao Zhendong made another suggestion to Mr. Zhang.
"I suggest that while reducing the power of the infantry portable illuminator, you can integrate the thermal imaging camera into the sighting system of the portable illuminator. If it cannot be directly integrated, at least provide a convenient interface for the thermal imaging camera. Next step If the conditions of the airborne pod are mature, the thermal imaging camera can also be integrated without worrying about the resolution. If necessary, the resolution of the thermal imaging camera can be improved at a considerable cost.”
For scouts, as long as they can see the enemy, they can use the illuminator to provide illumination for laser-guided weapons. Therefore, it is very important for this illuminator or matching sight to have night vision capabilities. For an enemy whose main anti-aircraft weapon is artillery, night bombing is simply impossible for them.
As for night bombing, you must first be able to see it clearly. Night bombing was not very popular during S2. The main reason is that the bombers themselves cannot see it.
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However, this situation changed when Citigroup's Li Mei was having a barbecue. Li Mei often carried out night bombings, but his target instructions were quite special - using incendiary bombs to throw a "ten" in the little devil city. , the other bombers would just surround this cross and throw incendiary bombs.
In any case, there are not many situations where Li Mei's conditions are met. If you want to do a good job in night bombing, the most important thing is that you can see it.
"General Engineer Gao, if you can provide a high-resolution thermal imaging camera, I am confident that we can make the pod better." Gao Zhendong's series of suggestions also raised Mr. Zhang's heart, not just stacking materials. Well, heap!
Even so, he was still amazed by Gao Zhendong's broad thinking. Chief Engineer Gao thought far better and more comprehensively than himself.
Gao Zhendong stayed at Chunlei Factory for three days. During these three days, he mainly worked with comrades from Chunlei Factory to implement the improvement of laser-guided bombs.
The first is laser pulse width coding technology. Although he has given the idea, comrades from Chunlei Factory, who are not very familiar with digital circuits, still need some help to implement this technology.
Then there is the matter of the pod and the infantry portable illuminator. Together with Mr. Zhang, he re-determined the power index of the infantry portable illuminator to ensure that the infantry portable illuminator is completed as soon as possible. Gao Zhendong’s idea, This matter can be fully implemented before October.
Combat requires time to prepare. Judging from natural conditions, our transportation capabilities, and the enemy's operational inertia, there is a high probability that the time of this event will not change much.
Judging from the current progress of infantry portable illuminators, catching up to this point should not be a big problem. Mr. Zhang and the others have already accumulated a lot before this. With the irradiation power almost cut in half, they can make a usable one. It should be feasible for things to come out.
The only thing Gao Zhendong repeatedly emphasized on this matter was that high-cold conditions must be fully considered, and high-cold experiments must be conducted thoroughly.
As for the laser-guided pod integrating the thermal imaging camera, it was only included in the plan and the plan was determined. However, in terms of time, Gao Zhendong did not consider completing it before the node. As long as the infantry portable pod integrates the existing small thermal imaging camera and laser-guided bomb If the increase in inertial navigation is implemented well, it will basically be possible to achieve a certain level of precision bombing in night battles.
The night before leaving Chunlei Factory, Gao Zhendong thought about it, took out a pen and paper, and wrote a title on the cover paper.
——"Research and Suggestions on the Use of Various New Weapons in Alpine Conditions".
(End of chapter)