Chapter 2579: Big Dipper is not afraid

Interfering with the Beidou system is not so easy.
If you are a layman, it is easy to exaggerate. For example, a reporter vowed to use hackers to interfere with the Beidou system. In his eyes, he seems to think that the Beidou system is just like a computer network system and is easily interfered.
This is of course impossible. The principle of the satellite navigation system determines that hackers cannot do anything. The principle of the satellite navigation system is very simple. It launches a satellite to the sky, carries a clock, and sends a clock signal to the ground. .
That's right, it is one-way. It only transmits signals and does not receive signals at all. Since it does not receive signals at all, what means would your hacker use to get into it?
Passive reception on the ground determines the distance based on the position of the satellite and the time signal sent, and calculates its own position. In this case, the only thing you want to interfere with is the orbit of the satellite. If the orbit of the satellite is wrong, it will naturally There is an error.
The satellite's orbit is monitored by the aerospace measurement and control network. This network and the civilian network are not connected at all. Besides, after launching, the satellite's orbit will be fixed and will not change its orbit. How can it be adjusted?
As for changing the clock signal, it is impossible. After calibrating before going up, the error is only one second for hundreds of millions of years. There is no need for calibration at all.
Therefore, hacker intrusion is impossible. If you want to interfere, you can only interfere with the clock signal, so that the user cannot receive it, or receives the wrong signal. These are two types of suppression and deception.
This type of suppression is to send a large number of the same signal, so that the target cannot receive the normal signal. This method is very simple and rude, but it requires a lot of energy, even if it is an electronic jammer, the range is hundreds of kilometers. That's all, if you want to interfere with the satellite navigation of the entire country, how much energy is needed?
The deceptive one needs to be more advanced, that is to transmit exactly the same signal, allowing the user to receive the wrong signal, and interfere with the correct navigation and positioning of the receiver. This requires little energy, but it is necessary to understand the transmission of the navigation satellite The specific content of the signal is definitely not easy to achieve.
At present, the Beidou navigation system launched by the Han Chinese has long conducted special research on anti-jamming, using special space-time adaptive advanced anti-jamming means, reducing the processing freedom to reduce the amount of calculation and increase the convergence speed . At the same time, the beam steering box beamforming technology is used to form a high-gain beam in the direction of the satellite signal, in addition to forming a deep sink in the interference direction, so that the satellite signal is enhanced while suppressing interference, which greatly improves the anti-interference ability. This kind of anti-jamming scheme, even in 2020, there will be no corresponding jammers. Therefore, if you want to interfere with your Beidou navigation system, it will be another thirty years!
The satellites used are not simple whip antennas or parabolic antennas, but the most complex array antennas, which can use the characteristics of satellite navigation signals to complete interference cancellation while ensuring that the signal is not distorted.
Since you want to interfere with our Beidou system, then we can also do the same and interfere with GPS. In this way, the Beidou navigation system is working normally, but GPS is powerless. Compared with the two, I believe the customer will have a right choice.
Thinking of this, Qin Guan smiled, and he wanted to trouble us, but it wasn't that easy!
Qin actually laughed? What is this guy thinking? If you are a person familiar with Qin Guan, you know the meaning of his laughter. This is obviously only when you cheat people. The Xiu Cai knows that Qin Guan must have thought of how to cheat these guys.
"If you want to interfere, then use it." Qin Guan said: "It is impossible for us to actively cut off the signal provided in this area."
The most straightforward way to make the other party feel at a loss is to turn off the navigation. The Eagles take advantage of their GPS and do not know how many times they have done it in that parallel time and space. Whoever is not obedient will cut off whose signal, so that they cannot be normal Work and life are even more impossible to fight. After all, the precision-guided weapons at the time depended heavily on GPS.
Han will not do this. The navigation signals that Han will provide serve the whole world. If it is cut off at every turn, isn’t it a hegemonic style?
"Aren't you disgusted?" Ambassador Green was puzzled and said something that diplomats shouldn't say. Shouldn't you be annoyed?
"Of course not." Qin Guan said, "I wish you success."
Also wish us success? What does President Qin think? When Ambassador Green left with a bewildered look, it was already dark.
After Ambassador Green left, Qin Guan’s work here was officially started. He handed over the B-2 bomber information to Mr. Chen and the others, and officially started the research on the stealth bomber!
After all, this is the most important thing. Now, they should also have new scientific research projects, stay motivated, and make this big guy out as soon as possible!
Qin Guan is full of confidence in this.
For the Han country, it is to constantly study war and adapt to war, but for the participants, it is not so leisurely.
Happy Desert Country, coalition command.
"Damn it, the date palms are like a smart commander. They have been playing for eight years and they haven't seen them adopt this style of play!"
A commander cursed that in the eight-year war, the Date Palm and the Parthian nation used almost the same style of play during the World War. Now how can they think that they have used such modern methods and they have also learned to saturate attacks. Up!
The Eagle Nation Navy’s losses were not particularly large, and new aircraft carriers were rushing over. They must win this war, but this loss still made them unacceptable.
"Fortunately, we just got the intelligence. There are only so many anti-ship missiles in Date Palm. If they do another round, we will definitely go crazy."
Facing the babble of the people present, General Schwapf frowned. He is the Supreme Commander. What kind of face does he have when he hits him like this? I'm afraid the boss is already considering replacing him, right?
"Now, it's time for us to use the big killer!" Schwapf said: "We want to let the people of the date palm country know that we are a nuclear power!"
Schwapf's words immediately stunned the people below, General, are you thinking about it?
"Of course, do we have other means now? Our conventional military has already lost too much, and Congress cannot accept greater losses. Therefore, we must use our nuclear bombs to let the date palms know that, Confrontation with big countries will not end well!"