"Yes, Chief Engineer Bai, let me see how our reverse mapping is going." "This anti-aircraft missile, which is related to how our navy and army respond to future threats, is a priority for us in Pakistan," Mhammad said. ”

Mhammad's words show the importance attached to this weapon, and the fact is that since he came here, the Pakistani side will quickly allocate all kinds of money needed for the project, and Pakistan will quickly buy all kinds of parts and components needed in the international market, and just two months ago, the computers here were updated to the latest models.

"We're in the tackling phase right now." Bai Xue said: "We reverse-developed, and there are two main problems we face, one is the T/R component of the phased array radar, and the other is the signal processing system in the later stage. ”

The principle of phased array radar is not complicated, the radar is divided into small units, each unit can control the phase of the radar beam independently, when multiple are gathered together, it constitutes a powerful radar wave.

Due to the use of electrical scanning, the refresh speed is greatly accelerated.

Moreover, even in China, in the sixties, a phased array radar for long-range early warning was created, which was installed on a hillside.

However, these are large radars, and if they want to become practical radars at the tactical level, they need to be miniaturized, mainly about the miniaturization of T/R components.

At the same time, the radar also has the difference between active phased array and passive phased array, and the antenna of the active phased array radar is a receiving and transmitting device using T/R components. Every T/R component can generate electromagnetic waves; Passive phased array radar, on the other hand, uses a unified transmitter and receiver, plus a phased array antenna with phase control capabilities, and the antenna itself cannot generate radar waves. Compared with. The active phased array radar has a simple structure and light weight, and at the same time, some modules are damaged without affecting the use, and the performance is the most advanced.

The radar of the Patriot is the AN/MPQ-53 radar that uses an active phased array.

The imitation of this radar is one of the key contents of the development.

Meantime. On the other hand, active phased array radar refreshes a large amount of data by relying on its fast scanning ability. This requires high-speed computers to process this data, as well as complex algorithms to be able to discern useful information from it. If the processing capacity is not reached. Then even if there is a phased array radar antenna, the fighter will be missed.

In contrast, the development of the missile body itself is in a secondary position, and moreover, in the development of the missile body, Mhammad directly handed over a Patriot missile to the Chinese side for imitation, and Pakistan mainly surveys and mapping electronic systems.

Originally. Surveying and mapping this electronic system is already a very difficult test. And Mahmad's requirements are not only surveying and mapping, but also the need to use four-sided phased array radar to build an Aegis system for the Pakistani Navy.

It can be said that in this world, apart from the United States, only the Soviet Union has this ability, but it is a pity that the electronic technology in the Soviet Union is not up to par, and almost all other countries in the world import the Aegis system from the United States.

If Pakistan wants to develop it on its own, it will be very difficult, but Muhammad is still full of confidence, because he knows that the Chinese Aegis of later generations was developed by China itself!

As long as there are samples, they can quickly imitate it, at the beginning of the import of several sets of S300 system, as a result, their own Hongqi Jiu came out, although in the information of later generations, many justifications, saying that these two missiles are different, but, if there is no S300 reference, Hongqi Jiu is afraid that it will be the same as other projects, and will eventually be stillborn.

"This is our copy of the T/R component." Bai Xue took out a small cylindrical object and said to Mhammad.

The phased array radar of the flat panel is composed of one such component, which is the basic unit.

"After we imitated it, after testing, in terms of performance, there is a big gap with the American system, for example, in terms of maximum power, we add up to one-fifth of the power of the American system, this module will overheat, and, in terms of service life, this component is only more than 50 hours, far from meeting the requirements, we are now trying to improve the manufacturing process, hoping to improve the power and heat dissipation capacity." Bai Xue said.

This basic component restricts the performance of the radar, and a mature active phased array radar needs to be developed for many years.

Therefore, for the difficulties raised by Bai Xue, Mhammad expressed his understanding: "We must use scientific laws to do things, carefully analyze, and constantly improve and enhance our technical capabilities, and we will make steady progress in a down-to-earth manner." ”

"On the other hand, we're making good progress." Bai Xue said: "We have deciphered all the software of the Patriot missile system through disassembly, and now we are studying these software, hoping to understand all the functions and improve on this basis." ”

Software! The key to the quality of a weapon system is software! In later generations, the Americans could not even change the hardware, but only write a new version of the software, so that the performance of the weapon system could be greatly upgraded.

Disassembly is a common way to study software systems, and today's programs, in order to pursue high efficiency, are still written in assembly language, and disassembly is the way to decipher programs.

"Great, our software is good." Mhammad said.

"This is certainly thanks to Pakistani personnel." Bai Xue said: "Pakistan's higher education is going very well, it is more advanced than our domestic one, and the computer major has trained a large number of advanced software designers, and we have selected a group to study the software system of Patriot, so it has gone smoothly." ”

If a country wants to develop, it must improve the quality of its citizens and popularize education, and according to the inference of later generations, Mhammad knows that computers will change the whole world, so it is a measure proposed by Mhammad to start popularizing computer education now.

Pakistan's population base is not small, such a large population, there will be a lot of computer geniuses, now, there is a good start, Pakistan has cultivated the software elite, has begun to work for the national defense system.

"Not bad." "We will benefit a lot from the system," Mhammad said. ”

"Yes, we're doing research right now, and when the four-sided phased array radar comes together, there must be new algorithms, or a lot of data will make our computer system unbearable." Bai Xue said: "I expect that in about two or three years, we will be able to design software for the four-sided phased array radar to search the entire airspace and guide multiple missiles at the same time, and then we will also have a more powerful computer system." ”

Two or three years! Mhammad's face was happy, this progress is quite fast.

"Good work, Chief Engineer Bai." Mhammad said.

"It's not hard, this is also for the cause of our country's national defense, our navy is too weak now, there is not even an advanced anti-aircraft missile in the country, it completely relies on the introduction of the French Sea Rattlesnake, our air force, and there are no fighters with a long range, when our navy ships are sailing alone on the sea, the air threat is too great." Bai Xue said.

After the study was made, Pakistan and China share technology, and Mhammad has no objection to this, and Pakistan's national interests are closely linked to China.

Next, Bai Xue took Mhammad around the entire top floor to inspect the progress of various subsystems, where more than 300 experts were working to reverse-map the anti-aircraft missile system.

By the time the inspection was over, it was already sunset.

Standing in front of the floor-to-ceiling windows, Mhammad looked out the window, the whole land, shrouded in a golden sun.

"Mr. President, are you going to eat here?" Bai Xue asked, "If you want to eat it, I'll let you prepare an extra portion below." ”

Dine? Mhammad knew that this was almost a completely closed place, and all the meals were prepared in a canteen on the first floor, and in order to take care of the engineers from Huaxia, the canteen also specially invited several Huaxia chefs.

"Okay, I can have dinner with our scientists." Mhammad said with gusto.

"Do you eat Chinese or Western food?" Bai Xue continued to ask.

"Let's eat Chinese food."

Since coming here, Mhammad has also become accustomed to eating beef and mutton all day long, but in later generations, he still likes to eat authentic Chinese food.

Many researchers are still busy, and when the food is delivered, they continue to do their research while eating the food in the lunch box.

Mhammad held a lunch box and looked at the food inside, a simple rice bowl with rice underneath and fish-flavored shredded pork on top, which is a very popular dish in China.

Holding chopsticks, Mhammad skillfully brought the rice bowl to his mouth, picked up a mouthful of food, put it in his mouth, and the familiar taste came.

"President Mhammad, I didn't expect you to be so skilled with chopsticks." Bai Xue couldn't help but say, at this time, she was also holding a lunch box and sitting next to Mhammad, originally saw that it was all chopsticks, and wanted to change a spoon for Mhammad, who knows, Mhammad is extremely skillful.

"Yes, I will roll the dumpling wrappers and make dumplings by myself." Mhammad said.

"Really?" Bai Xue couldn't help but say, "Then I really want to see your craft." ”

"Okay, I'll invite you to the presidential palace another day and try my handiwork." "Even Lilith doesn't know that I make dumplings as a must," Mhammad said. ”

"Really? Great, you can't forget it. Bai Xue said. Her eyes were full of joy. (To be continued......)