Chapter 779 How to interfere with GPS

 “Accurately capture the target!”

 “Go to lockdown!”

 “Missile launch!”

It is still an exercise, which continues until the missile is launched, but no missile will actually fly over, not even a training bomb. After all, the stealth aircraft overhead is more precious.

 When the missile soldier pressed the missile launch button, everyone became excited.

 “Succeeded!”

“We have the ability to shoot stealth aircraft!”

"Yes, it is true that the stealth aircraft can be killed, but only when the stealth aircraft opens its bomb bay." Zoltan Danny said. He was not as excited as his men. At this time, his face looked a little lonely.

They expected that their equipment could successfully intercept the stealth machine. However, they did not know whether the target this time was too advanced or whether it was difficult to intercept the stealth machine. Therefore, they did not intercept the stealth machine perfectly. Everything is just the stealth machine draining water.

 The key one is the lack of meter-wave radar! Mr. Chen knew that if there was a meter-wave radar for long-range early warning, it would be perfect to capture the target's traces in advance and then let one's own missiles hit it.

 However, meter-wave radar detection of stealth aircraft is still highly confidential, and this technology will not be exported for the time being. Therefore, the missile force in front of us will definitely not be able to possess more advanced anti-stealth technology.

Now, how to comfort them?

“Everyone, after this close to actual combat exercise, I think you have summarized the tactics.” Qin Tao spoke.

 Summary, what to summarize? Danny's face looked very ugly: "Mr. Qin, if the US-made stealth aircraft also has this capability, it means that it will be difficult for us to shoot down the stealth aircraft in actual combat!"

"Yes, these years of war have taught us that stealth aircraft are the main threat. Our country's air defense capabilities are even worse. If we cannot destroy the stealth aircraft, then the sky above us will be undefended. As anti-aircraft missile soldiers , we will feel shame!"

“Everyone, if a stealth machine appears above your heads, what will they do?” Qin Tao asked.

"What else can they do? They will definitely drop bombs on us and attack important targets in our country." Danny said, his tone was very excited and angry, but when he finished speaking, he seemed to have discovered What.

"Yes, if it flies over the target we want to protect, it will definitely drop a bomb. As long as the bomb is dropped, the hatch needs to be opened. No matter what kind of stealth aircraft it is, when the hatch is opened, the stealth capability will Destroyed, this is our hope!" Zoltan Danny was already excited when he said the last part: "The mission of our 251st Missile Brigade is to shoot them down!"

"We don't know what level the other stealth opportunities are. Maybe the other party's stealth ability is worse than ours, and your usual training will come in handy. Maybe their stealth ability is better than ours, but that's okay. You just need to wait patiently, just like a hunter waiting for his prey." Qin Tao said: "Wait for the most suitable opportunity, and then kill with one strike!"

Zoltan Danny nodded vigorously: "Yes, we have this confidence. Other anti-aircraft missile units will be responsible for various non-stealth targets, but our missile brigade only deals with stealth aircraft! We want to break the myth of stealth aircraft. Let the world see our opportunity to protect our homeland’s airspace!”

Qin Tao nodded: "I wish you success. Next, we will continue to study the enemy's next move after you shoot down the enemy's stealth aircraft."

 What’s next?

 Everyone became serious.

 That's right, taking down the stealth machine is just the first step. What will happen next?

 The country whose stealth machine was shot down will definitely not be willing to accept it!

“Mr. Qin, if you have any suggestions, just tell me directly.”

"Although we try not to expose our weapons and equipment, when you shoot down the F-117, some people will become angry. They will definitely investigate and finally find out that our weapons were used." Qin Tao said, "Continue Come down and they should take their anger out on us.”

“Mr. Qin, please rest assured that we will not reveal the secrets of the Kaishan missile.” Zoltan-Dani said.

Hong Kong provides equipment for them to defend their homeland. How can they betray Dongfang?

Mr. Chen didn't think so much. Now when he heard Qin Tao say this, he felt sweat on his back. Yes, when the time comes, those guys will definitely be angry with us. We only think that the Kaishan missile is famous and can be sold. There were more, but I didn’t expect that I would be retaliated against.

 What should you do if you are retaliated against?

"There is no airtight wall in the world." Qin Tao shook his head: "Once you achieve victory, you must report it. Can you make sure that you and your troops will not leak secrets, and that you are qualified to see this combat report? Aren’t there people who want to leak secrets? No matter in any country, there are always scum.”

 Zoltan Danny was silent, yes, it is indeed possible.

"Then what should we do? We don't want to implicate our Eastern friends! We would rather not shoot down the results."

"Of course we must, and we must attack the invaders severely." Qin Tao said: "Don't worry, even if we are implicated by you, we will stand behind you. We believe that there is still justice in this world."

 Everyone who came to the missile brigade for training felt a warm current pouring into their hearts.

"Back then, when we had just founded the country and were surrounded by foreign enemies, the leader at that time said that all enemies were paper tigers! Now, I also send this sentence to you, hoping that you can win!" Qin Tao encouraged him. .

“Yes, Mr. Qin, please give me some advice.”

"At that time, the place where we Easterners gather may be supplied by the other party. The F-117 crashes and sinks. They may send B-2 over. You deploy nearby and wait until the B-2 drops the bomb. B-2 shoot down!"

The F-117 is nothing, it has long been outdated. The B-2 is a good thing, and the wreckage Qin Tao wants is also the latter.

Zoltan Danny nodded: "Mr. Qin, please rest assured, we will definitely do what you say!"

Spring is coming, the mountain breeze is slightly cold, but everyone’s heart is very warm.

After getting in the car, Xu Zhengyang said while hesitating: "Mr. Qin, I have followed you all over the world over the years. Everything you predicted has become true. Now, you are predicting another big event. This thing is true." Will it happen?"

"Zhengyang, don't think of me as a prophecy emperor." Qin Tao said: "I just analyze and judge based on the information I have, and finally get a more reasonable inference."

“Brother Tao, what else can we do next? Should we withdraw our people?” Zhao Ling was also very nervous.

"It's not up to us to decide whether to withdraw or not. Besides, even if their superiors ask them to withdraw, they may not come back. We, the real Chinese, don't have any cowards. We will always stick to our posts and uphold justice." Qin Tao said: "What we can do is try our best to pave the way for them."

Zhao Ling nodded. The arrangements made by Qin Tao just now were indeed foreshadowing. However, the attack on the stealth aircraft was only carried out when the opponent's bomb bay door was opened. Even if the stealth aircraft was shot down, the bombs would still fall!

“Next, let’s go to the technical school.”

 “Technical school?” Zhao Ling was curious.

“Mr. Qin, the name of the technical school has been changed a long time ago.” Xu Zhengyang said: “The former Radio Technical School has now been renamed Guizhou Electronic Information Technology and Poetry College.”

 “Oh. It seems that there have been a lot of changes.” Qin Tao sighed.

“Of course, the entire 083 base has now been renamed China Zhenhua Electronics Group Co., Ltd.”

"This technical school is from the 083 base? Then I have an impression." Zhao Ling said: "In recent years, their third-tier base has also been working hard to develop."

The Kaishan that everyone saw just now is a product of the 061 Base, and the Shuangyang Aircraft Factory contracted by the Mingzhou Group is a product of the 011 Aviation Base. These were all developed during the third-line construction period.

 At the beginning, facing the serious threat from the north, the country decided to transfer to the third front in order to avoid losing its military industrial strength in the war, and your province was a key construction area. With a triangular layout, the country has established three major bases. In addition to the 061 Aerospace Base and the 011 Aviation Base, it is the 083 Electronics Industrial Base.

In war years, third-line bases can preserve their strength, but in peacetime, third-line bases become sluggish. After all, third-line bases are located in deep mountains, and transportation is inconvenient. They only transport raw materials and products. It’s enough trouble, let alone the talents. The older generation of talents are willing to contribute their youth and lives to the motherland in the mountainous areas. Who of the new generation of college students is willing to crawl into the mountains and ditches? If you go in, what about your next generation?

Therefore, in the 1980s, the third-line bases were declining rapidly. However, they were also actively saving themselves. The 061 base was engaged in Kaishan missiles, the 011 aviation base was engaged in the JJ-7, and the 083 electronics industry base was not idle either. Various civilian electronic products, and later, Zhenhua Electronics Industrial Company was established.

This company has developed several times. It was listed in 1997 and underwent restructuring in 1999. It is considered to be doing well.

 At the same time, the technical school affiliated to the base is also changing.

Just like the Mingzhou Group opened a technical school to cultivate talents, the technical school in the 083 base is also to cultivate subsequent talents. After all, it relies on the assistance of other units in the beginning, but in the future, it cannot always let the brother units give blood transfusions. , which requires you to have hematopoietic ability.

Moreover, this technical school also has a story. In 1975, the famous General Wang who was in charge of the four machine gunships at that time visited the 083 base and personally instructed the 083 base to establish a technical school to cultivate electronic technology talents. After that, he founded ZY Radio Technical School. In 1979, ZY Radio Technical School moved to the old site of No. 1036 in Duyun and was renamed Duyun Radio Technical School. Now, the technical school has developed into a college.

Hearing this, Zhao Ling was very emotional, but she was still a little curious, why did Brother Tao go to the technical school? Looking for technical poetry?

When it got dark, the car drove to the technical school. At the school gate, there were already a lot of people waiting to greet them. Beautiful female students were lined up outside, with welcome red silk hanging diagonally on their chests. Qin Tao couldn't help but wrinkle Frown.

 I had no intention of engaging in such a big battle.

“Mr. Qin, you are welcome to inspect. I am the principal here. Just call me Lao Wang.” Principal Wang said to Qin Tao with a smile.

“Lao Wang, our technical school is a national key technical school and a place to cultivate electronic technology talents. Why do you have so many welcome ladies?” Qin Tao said: “Do things in a high profile and be a low-key person!”

"Yes, yes, Mr. Qin, you are right." Principal Wang nodded: "Remove all our greeters, keep a low profile, keep a low profile!"

“Mr. Qin, it’s getting dark now, and you’re tired from the journey here. Why don’t you go have a meal first? We’ve prepared it for you…”

Originally, he wanted to say that a welcome banquet was prepared, but looking at Mr. Qin's behavior, he probably didn't want to go to such a lively occasion, so he hesitated.

"Go to your cafeteria and eat whatever you want." Qin Tao said, "I will eat whatever the students in your school eat, and I will also feel the life of the students."

 “Okay, we will accompany you.”

“By the way, are there a group of people in our school who are making jammers?”

“Yes, this is a project we undertake for the army, and it is headed by Lao Yang, the director of our electronics department, Lao Yang, Lao Yang!”

Yang Weiguo stood up and said, "Mr. Qin, I can report our progress to you at any time."

 “Then let’s have dinner together. After dinner, let’s have a meeting.”

"yes."

Every time he enters the university campus, Qin Tao will have a unique feeling. The students holding books and walking in a hurry, the students standing in front of the grass reading English loudly, and the students eating and reading in the cafeteria all make Qin Tao fascinated. I feel that the name of this proud college student is not in vain.

Of course, Qin Tao would not go to places such as Internet cafes. After all, he had been in college for four years, and then he couldn't find a job after graduation. People like me who lament whether I went to college or not, still have to find the reasons within themselves.

 No matter what environment you are in, you need to work hard.

“Mr. Qin, we have stir-fried dishes in the canteen. Do you want to try the cooking skills of our chef?” Principal Wang asked.

“No need, I think the ones in this window are good.” Qin Tao said: “One braised pork, one scrambled egg with tomatoes, another one Kung Pao Chicken, and three taels of rice for the staple food.”

 Principal Wang on the side was a little surprised. Could it be that President Qin often goes to the university to experience life?

　　The aunt who cooked the meal didn’t even shake her wrist, and the three portions of food were filled to the brim.

“President Qin, our fish in sour soup is pretty good, it’s a specialty of your province.” Principal Wang said, “Would you like to try one?”

“No need, I’m afraid I won’t be able to finish all these, but we can’t waste food.” Qin Tao said, carrying the dinner plate to the dining table, and sat directly on it.

“Principal Wang, Lao Yang, you don’t have to stand there and eat together. Otherwise, it would be boring for you to watch me eat.”

Mr. Qin is the boss of a multinational group. He didn't expect to be so low-key and have such a simple meal. Principal Wang and others were very moved. He really does big things, but his level is different from ours.

“Yes, yes, let’s eat too. Mr. Qin, what would you like to drink?”

 Moutai is a specialty of your province, so they have prepared Moutai for a long time, but in this situation, it seems inappropriate to drink Moutai.

Qin Tao looked around and saw drink bottles placed next to the dining tables of several students: "Bring me a bottle of that drink."

“Mr. Qin, that’s bayberry juice. I’ll get it for you.” The person in charge of the canteen stood nearby, smiling so hard that his face almost cramped. Mr. Qin actually came to eat in their canteen and only ate these few things.

 It’s so approachable.

After eating, Qin Tao looked at the large group of people around him: "Principal Wang, you can leave. Go back. Lao Yang, just take your people and go to the meeting with me."

Principal Wang looked a little embarrassed. Mr. Qin must have had a purpose when he came to inspect their school. After he came, he, the principal, was not allowed to attend the meeting?

He was a little unhappy in his heart, but he couldn't show it on his face. He could only smile awkwardly: "Okay, Mr. Qin, then we won't follow him. Lao Wang, please report your work to Mr. Qin and cooperate with Mr. Qin. "

Yang Weiguo was flattered.

Arriving at the conference room, Yang Weiguo asked cautiously: "Mr. Qin, do you have any top-secret tasks for us?"

“It’s not a top-secret mission, I just want to hear about your progress on the GPS jammer.”

Yang Weiguo realized in his heart: There must be a top-secret mission, something that even the principal is inconvenient to hear, and he is directly responsible to Mr. Qin.

“Okay, Mr. Qin, I will give you a detailed report.”

 With the development of technology, satellite navigation has played an increasingly important role, not only in the civilian field, but also in the military field.

 From aircraft navigation to bomb positioning, etc., satellite navigation has become a crutch for some military powers and can no longer be thrown away!

When equipment that uses satellite navigation terminals to improve bombing accuracy to the meter level appears, it means that the cost of precision bombing becomes even lower. A small GPS receiver plus a control suite can cost only a few hundred dollars to carry out ordinary bombing operations. The iron bomb becomes a precision guided bomb!

 However, as the reliance on satellite navigation increases, some superpowers will become more vulnerable. As long as their satellite navigation systems are solved, they will become blind.

The most direct way is of course to destroy satellites, but this approach is also very extreme: so far, space is still peaceful. Once the other party's satellites are destroyed, the war will expand to space, and the fragments of the destroyed satellites will become increasingly fragmented. If there are too many, the Earth's outer space will be filled with debris, and human spaceflight will be greatly affected.

 So, we can only think of a solution from the ground.

“Currently, there are two solutions to satellite navigation systems.” Yang Weiguo said: “They are interference and deception.”

"Among them, jamming is the simplest technology. As long as a strong enough RF signal is generated to drown out the signal originally transmitted by the navigation satellite, the satellite positioning system will be disabled. However, it is also easy to be discovered by doing so, because the attacker You may also find yourself disturbed.”

The satellite navigation system sounds fancy, but the principle is actually very simple. The satellite above the head transmits a time signal, and the receiver on the ground receives the signal. It calculates the distance based on the time, plus the orbital position of the satellite, and determines the position of the receiver through geometric figures. .

 So, as long as the time signal is interfered with, the receiver cannot receive the correct time information, and thus accurate positioning will naturally be impossible.

 It’s just that the way of interference will be exposed.

Qin Tao nodded: "What about deception?"

"The method of deception is much more sophisticated. It does not randomly emit a large number of electromagnetic waves with the same frequency as satellite navigation signals. It only emits false signals. In other words, it simulates the signals of the satellite navigation system. Because of its The power is higher than the power of the satellite, and the receiver will pick up the signal and think it is correct and go to the wrong place."

"In other words, if an enemy is targeting our building, we can completely shift its aiming point to other targets?" Zhao Ling became excited.

The possibility that Qin Tao mentioned was like a big stone, weighing on her heart. Now, she finally found hope. In this way, she could let the abuser taste the results of being beaten and harm others. He will eventually harm himself!

“Yes, this is theoretically true, but in fact, this technology is very difficult.” Yang Weiguo said.

"Why?"

"Because we need to decipher the other party's coded information." Yang Weiguo said: "GPS satellites are divided into two types of signals. The civilian signal is not encrypted, and even artificial interference is added to reduce the accuracy. We have ways to imitate this civilian signal, but, Their military signals are encrypted, and we do not yet have the ability to decipher such encrypted signals. If we cannot decipher them, we will not be able to deceive military devices."

Zhao Ling nodded.

The satellite navigation system is a high-end one. It took many years of research by the U.S. military to develop it. How could the encrypted information of this thing be easily cracked by a teacher from a technical school? Not even a team could.

“In other words, we can’t use GPS spoofing yet?” Qin Tao asked.

“If it is for military signals, this is indeed the case.” Yang Weiguo said: “We are still working hard and hope to decipher the signals of the current generation of navigation satellites before the second generation of US navigation satellites are launched.”

“The cracking speed cannot keep up with their development speed, we still have to work hard.” Qin Tao sighed.

Now, GPS has been networked and has become the most important satellite navigation system in the world. However, this does not mean that we can sit back and relax. Americans are still developing the next generation of navigation satellites.

It is conceivable that the data encryption of the new generation of navigation satellites will be tighter. The job of deciphering is quite difficult.

It would be great if our own chips could be implanted in the next generation satellite navigation system of the United States! However, this wish seems to be just a dream. Chips of this level will definitely not be handed over to SMIC for OEM. Even if it is handed over, for the long-term development of SMIC, there must be no leaks. of.

“If we don’t want the attacker to find out that we have been interfered with, but we still need to effectively interfere with the receiver, then there is only one way left.” Zhao Ling said.

 (End of this chapter)